import { Inventory, TInventoryDatabaseDocument } from "@/src/models/inventoryModels/inventoryModel";
import { config } from "@/src/services/configService";
import { Types } from "mongoose";
import { SlotNames, IInventoryChanges, IBinChanges, slotNames, IAffiliationMods } from "@/src/types/purchaseTypes";
import {
    IChallengeProgress,
    IFlavourItem,
    IMiscItem,
    IMission,
    IRawUpgrade,
    ISeasonChallenge,
    ITypeCount,
    InventorySlot,
    IWeaponSkinClient,
    TEquipmentKey,
    IFusionTreasure,
    IDailyAffiliations,
    IKubrowPetEggDatabase,
    IKubrowPetEggClient,
    ILibraryDailyTaskInfo,
    ICalendarProgress,
    IDroneClient,
    IUpgradeClient,
    TPartialStartingGear
} from "@/src/types/inventoryTypes/inventoryTypes";
import { IGenericUpdate, IUpdateNodeIntrosResponse } from "../types/genericUpdate";
import { IKeyChainRequest, IMissionInventoryUpdateRequest } from "../types/requestTypes";
import { logger } from "@/src/utils/logger";
import { convertInboxMessage, fromStoreItem, getKeyChainItems } from "@/src/services/itemDataService";
import {
    EquipmentFeatures,
    IEquipmentClient,
    IEquipmentDatabase,
    IItemConfig
} from "../types/inventoryTypes/commonInventoryTypes";
import {
    ExportArcanes,
    ExportBundles,
    ExportCustoms,
    ExportDrones,
    ExportEmailItems,
    ExportEnemies,
    ExportFlavour,
    ExportFusionBundles,
    ExportGear,
    ExportKeys,
    ExportMisc,
    ExportNightwave,
    ExportRailjackWeapons,
    ExportRecipes,
    ExportResources,
    ExportSentinels,
    ExportSyndicates,
    ExportUpgrades,
    ExportWarframes,
    ExportWeapons,
    IDefaultUpgrade,
    IPowersuit,
    TStandingLimitBin
} from "warframe-public-export-plus";
import { createShip } from "./shipService";
import { toOid } from "../helpers/inventoryHelpers";
import { addQuestKey, completeQuest } from "@/src/services/questService";
import { handleBundleAcqusition } from "./purchaseService";
import libraryDailyTasks from "@/static/fixed_responses/libraryDailyTasks.json";
import { getRandomElement, getRandomInt, SRng } from "./rngService";
import { createMessage } from "./inboxService";
import { getMaxStanding } from "@/src/helpers/syndicateStandingHelper";

export const createInventory = async (
    accountOwnerId: Types.ObjectId,
    defaultItemReferences: { loadOutPresetId: Types.ObjectId; ship: Types.ObjectId }
): Promise<void> => {
    try {
        const inventory = new Inventory({
            accountOwnerId: accountOwnerId,
            LoadOutPresets: defaultItemReferences.loadOutPresetId,
            Ships: [defaultItemReferences.ship],
            PlayedParkourTutorial: config.skipTutorial,
            ReceivedStartingGear: config.skipTutorial
        });

        inventory.LibraryAvailableDailyTaskInfo = createLibraryDailyTask();
        inventory.CalendarProgress = createCalendar();
        inventory.RewardSeed = generateRewardSeed();
        inventory.DuviriInfo = {
            Seed: generateRewardSeed(),
            NumCompletions: 0
        };
        await addItem(inventory, "/Lotus/Types/Friendly/PlayerControllable/Weapons/DuviriDualSwords");

        if (config.skipTutorial) {
            await addStartingGear(inventory);
            await completeQuest(inventory, "/Lotus/Types/Keys/VorsPrize/VorsPrizeQuestKeyChain");

            const completedMissions = ["SolNode27", "SolNode89", "SolNode63", "SolNode85", "SolNode15", "SolNode79"];

            inventory.Missions.push(
                ...completedMissions.map(tag => ({
                    Completes: 1,
                    Tag: tag
                }))
            );
        }

        await inventory.save();
    } catch (error) {
        throw new Error(`Error creating inventory: ${error instanceof Error ? error.message : "Unknown error type"}`);
    }
};

export const generateRewardSeed = (): number => {
    const min = -Number.MAX_SAFE_INTEGER;
    const max = Number.MAX_SAFE_INTEGER;
    return Math.floor(Math.random() * (max - min + 1)) + min;
};

//TODO: RawUpgrades might need to return a LastAdded
const awakeningRewards = [
    "/Lotus/Types/StoreItems/AvatarImages/AvatarImageItem1",
    "/Lotus/Types/StoreItems/AvatarImages/AvatarImageItem2",
    "/Lotus/Types/StoreItems/AvatarImages/AvatarImageItem3",
    "/Lotus/Types/StoreItems/AvatarImages/AvatarImageItem4",
    "/Lotus/Types/Restoratives/LisetAutoHack",
    "/Lotus/Upgrades/Mods/Warframe/AvatarShieldMaxMod"
];

export const addStartingGear = async (
    inventory: TInventoryDatabaseDocument,
    startingGear: TPartialStartingGear | undefined = undefined
): Promise<IInventoryChanges> => {
    const { LongGuns, Pistols, Suits, Melee } = startingGear || {
        LongGuns: [{ ItemType: "/Lotus/Weapons/Tenno/Rifle/Rifle" }],
        Pistols: [{ ItemType: "/Lotus/Weapons/Tenno/Pistol/Pistol" }],
        Suits: [{ ItemType: "/Lotus/Powersuits/Excalibur/Excalibur" }],
        Melee: [{ ItemType: "/Lotus/Weapons/Tenno/Melee/LongSword/LongSword" }]
    };

    //TODO: properly merge weapon bin changes it is currently static here
    const inventoryChanges: IInventoryChanges = {};
    addEquipment(inventory, "LongGuns", LongGuns[0].ItemType, undefined, inventoryChanges);
    addEquipment(inventory, "Pistols", Pistols[0].ItemType, undefined, inventoryChanges);
    addEquipment(inventory, "Melee", Melee[0].ItemType, undefined, inventoryChanges);
    await addPowerSuit(inventory, Suits[0].ItemType, inventoryChanges);
    addEquipment(
        inventory,
        "DataKnives",
        "/Lotus/Weapons/Tenno/HackingDevices/TnHackingDevice/TnHackingDeviceWeapon",
        undefined,
        inventoryChanges,
        { XP: 450_000 }
    );
    addEquipment(
        inventory,
        "Scoops",
        "/Lotus/Weapons/Tenno/Speedball/SpeedballWeaponTest",
        undefined,
        inventoryChanges
    );

    updateSlots(inventory, InventorySlot.SUITS, 0, 1);
    updateSlots(inventory, InventorySlot.WEAPONS, 0, 3);
    inventoryChanges.SuitBin = { count: 1, platinum: 0, Slots: -1 };
    inventoryChanges.WeaponBin = { count: 3, platinum: 0, Slots: -3 };

    await addItem(inventory, "/Lotus/Types/Keys/VorsPrize/VorsPrizeQuestKeyChain");
    inventory.ActiveQuest = "/Lotus/Types/Keys/VorsPrize/VorsPrizeQuestKeyChain";

    inventory.PremiumCredits = 50;
    inventory.PremiumCreditsFree = 50;
    inventoryChanges.PremiumCredits = 50;
    inventoryChanges.PremiumCreditsFree = 50;
    inventory.RegularCredits = 3000;
    inventoryChanges.RegularCredits = 3000;

    for (const item of awakeningRewards) {
        const inventoryDelta = await addItem(inventory, item);
        combineInventoryChanges(inventoryChanges, inventoryDelta);
    }

    if (inventory.ReceivedStartingGear) {
        logger.warn(`account already had starting gear but asked for it again?!`);
    }
    inventory.ReceivedStartingGear = true;

    return inventoryChanges;
};

/**
 * Combines two inventory changes objects into one.
 *
 * @param InventoryChanges - will hold the combined changes
 * @param delta - inventory changes to be added
 */
//TODO: this fails silently when providing an incorrect object to delta
export const combineInventoryChanges = (InventoryChanges: IInventoryChanges, delta: IInventoryChanges): void => {
    for (const key in delta) {
        if (!(key in InventoryChanges)) {
            InventoryChanges[key] = delta[key];
        } else if (Array.isArray(delta[key])) {
            const left = InventoryChanges[key] as object[];
            const right: object[] = delta[key];
            for (const item of right) {
                left.push(item);
            }
        } else if (slotNames.indexOf(key as SlotNames) != -1) {
            const left = InventoryChanges[key as SlotNames]!;
            const right = delta[key as SlotNames]!;
            if (right.count) {
                left.count ??= 0;
                left.count += right.count;
            }
            if (right.platinum) {
                left.platinum ??= 0;
                left.platinum += right.platinum;
            }
            left.Slots += right.Slots;
            if (right.Extra) {
                left.Extra ??= 0;
                left.Extra += right.Extra;
            }
        } else if (typeof delta[key] === "number") {
            (InventoryChanges[key] as number) += delta[key];
        } else {
            throw new Error(`inventory change not merged: unhandled type for inventory key ${key}`);
        }
    }
};

export const getInventory = async (
    accountOwnerId: string,
    projection: string | undefined = undefined
): Promise<TInventoryDatabaseDocument> => {
    const inventory = await Inventory.findOne({ accountOwnerId: accountOwnerId }, projection);

    if (!inventory) {
        throw new Error(`Didn't find an inventory for ${accountOwnerId}`);
    }

    return inventory;
};

export const productCategoryToInventoryBin = (productCategory: string): InventorySlot | undefined => {
    switch (productCategory) {
        case "Suits":
            return InventorySlot.SUITS;
        case "Pistols":
        case "LongGuns":
        case "Melee":
            return InventorySlot.WEAPONS;
        case "Sentinels":
        case "SentinelWeapons":
        case "KubrowPets":
        case "MoaPets":
            return InventorySlot.SENTINELS;
        case "SpaceSuits":
        case "Hoverboards":
            return InventorySlot.SPACESUITS;
        case "SpaceGuns":
        case "SpaceMelee":
            return InventorySlot.SPACEWEAPONS;
        case "OperatorAmps":
            return InventorySlot.AMPS;
        case "CrewShipWeapons":
        case "CrewShipWeaponSkins":
            return InventorySlot.RJ_COMPONENT_AND_ARMAMENTS;
        case "MechSuits":
            return InventorySlot.MECHSUITS;
        case "CrewMembers":
            return InventorySlot.CREWMEMBERS;
    }
    return undefined;
};

export const occupySlot = (
    inventory: TInventoryDatabaseDocument,
    bin: InventorySlot,
    premiumPurchase: boolean
): IInventoryChanges => {
    const slotChanges = {
        Slots: 0,
        Extra: 0
    };
    if (premiumPurchase) {
        slotChanges.Extra += 1;
    } else {
        // { count: 1, platinum: 0, Slots: -1 }
        slotChanges.Slots -= 1;
    }
    updateSlots(inventory, bin, slotChanges.Slots, slotChanges.Extra);
    const inventoryChanges: IInventoryChanges = {};
    inventoryChanges[bin] = slotChanges satisfies IBinChanges;
    return inventoryChanges;
};

export const freeUpSlot = (inventory: TInventoryDatabaseDocument, bin: InventorySlot): void => {
    // { count: -1, platinum: 0, Slots: 1 }
    updateSlots(inventory, bin, 1, 0);
};

export const addItem = async (
    inventory: TInventoryDatabaseDocument,
    typeName: string,
    quantity: number = 1,
    premiumPurchase: boolean = false,
    seed?: bigint
): Promise<IInventoryChanges> => {
    // Bundles are technically StoreItems but a) they don't have a normal counterpart, and b) they are used in non-StoreItem contexts, e.g. email attachments.
    if (typeName in ExportBundles) {
        return await handleBundleAcqusition(typeName, inventory, quantity);
    }

    // Strict typing
    if (typeName in ExportRecipes) {
        const recipeChanges = [
            {
                ItemType: typeName,
                ItemCount: quantity
            } satisfies ITypeCount
        ];
        addRecipes(inventory, recipeChanges);
        return {
            Recipes: recipeChanges
        };
    }
    if (typeName in ExportResources) {
        if (ExportResources[typeName].productCategory == "MiscItems") {
            const miscItemChanges = [
                {
                    ItemType: typeName,
                    ItemCount: quantity
                } satisfies IMiscItem
            ];
            addMiscItems(inventory, miscItemChanges);
            return {
                MiscItems: miscItemChanges
            };
        } else if (ExportResources[typeName].productCategory == "FusionTreasures") {
            const fusionTreasureChanges = [
                {
                    ItemType: typeName,
                    ItemCount: quantity,
                    Sockets: 0
                } satisfies IFusionTreasure
            ];
            addFusionTreasures(inventory, fusionTreasureChanges);
            return {
                FusionTreasures: fusionTreasureChanges
            };
        } else if (ExportResources[typeName].productCategory == "Ships") {
            const oid = await createShip(inventory.accountOwnerId, typeName);
            inventory.Ships.push(oid);
            return {
                Ships: [
                    {
                        ItemId: { $oid: oid.toString() },
                        ItemType: typeName
                    }
                ]
            };
        } else if (ExportResources[typeName].productCategory == "CrewShips") {
            return {
                ...addCrewShip(inventory, typeName),
                // fix to unlock railjack modding, item bellow supposed to be obtained from archwing quest
                // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
                ...(!inventory.CrewShipHarnesses?.length
                    ? addCrewShipHarness(inventory, "/Lotus/Types/Game/CrewShip/RailJack/DefaultHarness")
                    : {})
            };
        } else if (ExportResources[typeName].productCategory == "ShipDecorations") {
            const changes = [
                {
                    ItemType: typeName,
                    ItemCount: quantity
                } satisfies IMiscItem
            ];
            addShipDecorations(inventory, changes);
            return {
                ShipDecorations: changes
            };
        } else if (ExportResources[typeName].productCategory == "KubrowPetEggs") {
            const changes: IKubrowPetEggClient[] = [];
            if (quantity < 0 || quantity > 100) {
                throw new Error(`unexpected acquisition quantity of KubrowPetEggs: got ${quantity}, expected 0..100`);
            }
            for (let i = 0; i != quantity; ++i) {
                const egg: IKubrowPetEggDatabase = {
                    ItemType: "/Lotus/Types/Game/KubrowPet/Eggs/KubrowEgg",
                    _id: new Types.ObjectId()
                };
                inventory.KubrowPetEggs ??= [];
                inventory.KubrowPetEggs.push(egg);
                changes.push({
                    ItemType: egg.ItemType,
                    ExpirationDate: { $date: { $numberLong: "2000000000000" } },
                    ItemId: toOid(egg._id)
                });
            }
            return {
                KubrowPetEggs: changes
            };
        } else {
            throw new Error(`unknown product category: ${ExportResources[typeName].productCategory}`);
        }
    }
    if (typeName in ExportCustoms) {
        const meta = ExportCustoms[typeName];
        let inventoryChanges: IInventoryChanges;
        if (meta.productCategory == "CrewShipWeaponSkins") {
            inventoryChanges = addCrewShipWeaponSkin(inventory, typeName);
        } else {
            inventoryChanges = addSkin(inventory, typeName);
        }
        if (meta.additionalItems) {
            for (const item of meta.additionalItems) {
                combineInventoryChanges(inventoryChanges, await addItem(inventory, item));
            }
        }
        return inventoryChanges;
    }
    if (typeName in ExportFlavour) {
        return addCustomization(inventory, typeName);
    }
    if (typeName in ExportUpgrades || typeName in ExportArcanes) {
        const changes = [
            {
                ItemType: typeName,
                ItemCount: quantity
            }
        ];
        addMods(inventory, changes);
        return {
            RawUpgrades: changes
        };
    }
    if (typeName in ExportGear) {
        const consumablesChanges = [
            {
                ItemType: typeName,
                ItemCount: quantity
            } satisfies ITypeCount
        ];
        addConsumables(inventory, consumablesChanges);
        return {
            Consumables: consumablesChanges
        };
    }
    if (typeName in ExportWeapons) {
        const weapon = ExportWeapons[typeName];
        if (weapon.totalDamage != 0) {
            const defaultOverwrites: Partial<IEquipmentDatabase> = {};
            if (premiumPurchase) {
                defaultOverwrites.Features = EquipmentFeatures.DOUBLE_CAPACITY;
            }
            if (weapon.maxLevelCap == 40 && typeName.indexOf("BallasSword") == -1) {
                if (!seed) {
                    seed = BigInt(Math.round(Math.random() * Number.MAX_SAFE_INTEGER));
                }
                const rng = new SRng(seed);
                const tag = rng.randomElement([
                    "InnateElectricityDamage",
                    "InnateFreezeDamage",
                    "InnateHeatDamage",
                    "InnateImpactDamage",
                    "InnateMagDamage",
                    "InnateRadDamage",
                    "InnateToxinDamage"
                ]);
                const WeaponUpgradeValueAttenuationExponent = 2.25;
                let value = Math.pow(rng.randomFloat(), WeaponUpgradeValueAttenuationExponent);
                if (value >= 0.941428) {
                    value = 1;
                }
                defaultOverwrites.UpgradeType = "/Lotus/Weapons/Grineer/KuvaLich/Upgrades/InnateDamageRandomMod";
                defaultOverwrites.UpgradeFingerprint = JSON.stringify({
                    compat: typeName,
                    buffs: [
                        {
                            Tag: tag,
                            Value: Math.trunc(value * 0x40000000)
                        }
                    ]
                });
            }
            const inventoryChanges = addEquipment(
                inventory,
                weapon.productCategory,
                typeName,
                [],
                {},
                defaultOverwrites
            );
            if (weapon.additionalItems) {
                for (const item of weapon.additionalItems) {
                    combineInventoryChanges(inventoryChanges, await addItem(inventory, item, 1));
                }
            }
            return {
                ...inventoryChanges,
                ...occupySlot(inventory, InventorySlot.WEAPONS, premiumPurchase)
            };
        } else {
            // Modular weapon parts
            const miscItemChanges = [
                {
                    ItemType: typeName,
                    ItemCount: quantity
                } satisfies IMiscItem
            ];
            addMiscItems(inventory, miscItemChanges);
            return {
                MiscItems: miscItemChanges
            };
        }
    }
    if (typeName in ExportRailjackWeapons) {
        return {
            ...addEquipment(inventory, ExportRailjackWeapons[typeName].productCategory, typeName),
            ...occupySlot(inventory, InventorySlot.RJ_COMPONENT_AND_ARMAMENTS, premiumPurchase)
        };
    }
    if (typeName in ExportMisc.creditBundles) {
        const creditsTotal = ExportMisc.creditBundles[typeName] * quantity;
        inventory.RegularCredits += creditsTotal;
        return {
            RegularCredits: creditsTotal
        };
    }
    if (typeName in ExportFusionBundles) {
        const fusionPointsTotal = ExportFusionBundles[typeName].fusionPoints * quantity;
        inventory.FusionPoints += fusionPointsTotal;
        return {
            FusionPoints: fusionPointsTotal
        };
    }
    if (typeName in ExportKeys) {
        // Note: "/Lotus/Types/Keys/" contains some EmailItems
        const key = ExportKeys[typeName];

        if (key.chainStages) {
            const key = addQuestKey(inventory, { ItemType: typeName });
            if (!key) return {};
            return { QuestKeys: [key] };
        } else {
            const levelKeyChanges = [{ ItemType: typeName, ItemCount: quantity }];
            addLevelKeys(inventory, levelKeyChanges);
            return { LevelKeys: levelKeyChanges };
        }
    }
    if (typeName in ExportDrones) {
        // Can only get 1 at a time from crafting, but for convenience's sake, allow up 100 to via the WebUI.
        if (quantity < 0 || quantity > 100) {
            throw new Error(`unexpected acquisition quantity of Drones: got ${quantity}, expected 0..100`);
        }
        for (let i = 0; i != quantity; ++i) {
            return addDrone(inventory, typeName);
        }
    }
    if (typeName in ExportEmailItems) {
        if (quantity != 1) {
            throw new Error(`unexpected acquisition quantity of EmailItems: got ${quantity}, expected 1`);
        }
        return await addEmailItem(inventory, typeName);
    }

    // Path-based duck typing
    switch (typeName.substr(1).split("/")[1]) {
        case "Powersuits":
            switch (typeName.substr(1).split("/")[2]) {
                default: {
                    return {
                        ...(await addPowerSuit(
                            inventory,
                            typeName,
                            {},
                            premiumPurchase ? EquipmentFeatures.DOUBLE_CAPACITY : undefined
                        )),
                        ...occupySlot(inventory, InventorySlot.SUITS, premiumPurchase)
                    };
                }
                case "Archwing": {
                    inventory.ArchwingEnabled = true;
                    return {
                        ...addSpaceSuit(
                            inventory,
                            typeName,
                            {},
                            premiumPurchase ? EquipmentFeatures.DOUBLE_CAPACITY : undefined
                        ),
                        ...occupySlot(inventory, InventorySlot.SPACESUITS, premiumPurchase)
                    };
                }
                case "EntratiMech": {
                    return {
                        ...(await addMechSuit(
                            inventory,
                            typeName,
                            {},
                            premiumPurchase ? EquipmentFeatures.DOUBLE_CAPACITY : undefined
                        )),
                        ...occupySlot(inventory, InventorySlot.MECHSUITS, premiumPurchase)
                    };
                }
            }
            break;
        case "Upgrades": {
            switch (typeName.substr(1).split("/")[2]) {
                case "Mods": // Legendary Core
                case "CosmeticEnhancers": // Traumatic Peculiar
                    {
                        const changes = [
                            {
                                ItemType: typeName,
                                ItemCount: quantity
                            }
                        ];
                        addMods(inventory, changes);
                        return {
                            RawUpgrades: changes
                        };
                    }
                    break;

                case "Stickers":
                    {
                        const entry = inventory.RawUpgrades.find(x => x.ItemType == typeName);
                        if (entry && entry.ItemCount >= 10) {
                            const miscItemChanges = [
                                {
                                    ItemType: "/Lotus/Types/Items/MiscItems/1999ConquestBucks",
                                    ItemCount: 1
                                }
                            ];
                            addMiscItems(inventory, miscItemChanges);
                            return {
                                MiscItems: miscItemChanges
                            };
                        } else {
                            const changes = [
                                {
                                    ItemType: typeName,
                                    ItemCount: quantity
                                }
                            ];
                            addMods(inventory, changes);
                            return {
                                RawUpgrades: changes
                            };
                        }
                    }
                    break;
            }
            break;
        }
        case "Types":
            switch (typeName.substr(1).split("/")[2]) {
                case "Sentinels": {
                    return addSentinel(inventory, typeName, premiumPurchase);
                }
                case "Game": {
                    if (typeName.substr(1).split("/")[3] == "Projections") {
                        // Void Relics, e.g. /Lotus/Types/Game/Projections/T2VoidProjectionGaussPrimeDBronze
                        const miscItemChanges = [
                            {
                                ItemType: typeName,
                                ItemCount: quantity
                            } satisfies IMiscItem
                        ];
                        addMiscItems(inventory, miscItemChanges);
                        inventory.HasOwnedVoidProjectionsPreviously = true;
                        return {
                            MiscItems: miscItemChanges
                        };
                    } else if (typeName == "/Lotus/Types/Game/CrewShip/RailJack/DefaultHarness") {
                        return addCrewShipHarness(inventory, typeName);
                    }
                    break;
                }
                case "NeutralCreatures": {
                    const horseIndex = inventory.Horses.push({ ItemType: typeName });
                    return {
                        Horses: [inventory.Horses[horseIndex - 1].toJSON<IEquipmentClient>()]
                    };
                }
                case "Vehicles":
                    if (typeName == "/Lotus/Types/Vehicles/Motorcycle/MotorcyclePowerSuit") {
                        return addMotorcycle(inventory, typeName);
                    }
                    break;
            }
            break;
    }
    throw new Error(`unable to add item: ${typeName}`);
};

export const addItems = async (
    inventory: TInventoryDatabaseDocument,
    items: ITypeCount[] | string[],
    inventoryChanges: IInventoryChanges = {}
): Promise<IInventoryChanges> => {
    let inventoryDelta;
    for (const item of items) {
        if (typeof item === "string") {
            inventoryDelta = await addItem(inventory, item, 1, true);
        } else {
            inventoryDelta = await addItem(inventory, item.ItemType, item.ItemCount, true);
        }
        combineInventoryChanges(inventoryChanges, inventoryDelta);
    }
    return inventoryChanges;
};

export const applyDefaultUpgrades = (
    inventory: TInventoryDatabaseDocument,
    defaultUpgrades: IDefaultUpgrade[] | undefined
): IItemConfig[] => {
    const modsToGive: IRawUpgrade[] = [];
    const configs: IItemConfig[] = [];
    if (defaultUpgrades) {
        const upgrades = [];
        for (const defaultUpgrade of defaultUpgrades) {
            modsToGive.push({ ItemType: defaultUpgrade.ItemType, ItemCount: 1 });
            if (defaultUpgrade.Slot != -1) {
                while (upgrades.length < defaultUpgrade.Slot) {
                    upgrades.push("");
                }
                upgrades[defaultUpgrade.Slot] = defaultUpgrade.ItemType;
            }
        }
        if (upgrades.length != 0) {
            configs.push({ Upgrades: upgrades });
        }
    }
    addMods(inventory, modsToGive);
    return configs;
};

//TODO: maybe genericMethod for all the add methods, they share a lot of logic
const addSentinel = (
    inventory: TInventoryDatabaseDocument,
    sentinelName: string,
    premiumPurchase: boolean,
    inventoryChanges: IInventoryChanges = {}
): IInventoryChanges => {
    // Sentinel itself occupies a slot in the sentinels bin
    combineInventoryChanges(inventoryChanges, occupySlot(inventory, InventorySlot.SENTINELS, premiumPurchase));

    // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
    if (ExportSentinels[sentinelName]?.defaultWeapon) {
        addSentinelWeapon(inventory, ExportSentinels[sentinelName].defaultWeapon, premiumPurchase, inventoryChanges);
    }

    // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
    const configs: IItemConfig[] = applyDefaultUpgrades(inventory, ExportSentinels[sentinelName]?.defaultUpgrades);

    const features = premiumPurchase ? EquipmentFeatures.DOUBLE_CAPACITY : undefined;
    const sentinelIndex =
        inventory.Sentinels.push({ ItemType: sentinelName, Configs: configs, XP: 0, Features: features }) - 1;
    inventoryChanges.Sentinels ??= [];
    inventoryChanges.Sentinels.push(inventory.Sentinels[sentinelIndex].toJSON<IEquipmentClient>());

    return inventoryChanges;
};

const addSentinelWeapon = (
    inventory: TInventoryDatabaseDocument,
    typeName: string,
    premiumPurchase: boolean,
    inventoryChanges: IInventoryChanges
): void => {
    // Sentinel weapons also occupy a slot in the sentinels bin
    combineInventoryChanges(inventoryChanges, occupySlot(inventory, InventorySlot.SENTINELS, premiumPurchase));

    const index = inventory.SentinelWeapons.push({ ItemType: typeName, XP: 0 }) - 1;
    inventoryChanges.SentinelWeapons ??= [];
    inventoryChanges.SentinelWeapons.push(inventory.SentinelWeapons[index].toJSON<IEquipmentClient>());
};

export const addPowerSuit = async (
    inventory: TInventoryDatabaseDocument,
    powersuitName: string,
    inventoryChanges: IInventoryChanges = {},
    features: number | undefined = undefined
): Promise<IInventoryChanges> => {
    const powersuit = ExportWarframes[powersuitName] as IPowersuit | undefined;
    const exalted = powersuit?.exalted ?? [];
    for (const specialItem of exalted) {
        addSpecialItem(inventory, specialItem, inventoryChanges);
    }
    if (powersuit?.additionalItems) {
        for (const item of powersuit.additionalItems) {
            if (exalted.indexOf(item) == -1) {
                combineInventoryChanges(inventoryChanges, await addItem(inventory, item, 1));
            }
        }
    }
    const suitIndex =
        inventory.Suits.push({
            ItemType: powersuitName,
            Configs: [],
            UpgradeVer: 101,
            XP: 0,
            Features: features,
            IsNew: true
        }) - 1;
    inventoryChanges.Suits ??= [];
    inventoryChanges.Suits.push(inventory.Suits[suitIndex].toJSON<IEquipmentClient>());
    return inventoryChanges;
};

export const addMechSuit = async (
    inventory: TInventoryDatabaseDocument,
    mechsuitName: string,
    inventoryChanges: IInventoryChanges = {},
    features: number | undefined = undefined
): Promise<IInventoryChanges> => {
    const powersuit = ExportWarframes[mechsuitName] as IPowersuit | undefined;
    const exalted = powersuit?.exalted ?? [];
    for (const specialItem of exalted) {
        addSpecialItem(inventory, specialItem, inventoryChanges);
    }
    if (powersuit?.additionalItems) {
        for (const item of powersuit.additionalItems) {
            if (exalted.indexOf(item) == -1) {
                combineInventoryChanges(inventoryChanges, await addItem(inventory, item, 1));
            }
        }
    }
    const suitIndex =
        inventory.MechSuits.push({
            ItemType: mechsuitName,
            Configs: [],
            UpgradeVer: 101,
            XP: 0,
            Features: features,
            IsNew: true
        }) - 1;
    inventoryChanges.MechSuits ??= [];
    inventoryChanges.MechSuits.push(inventory.MechSuits[suitIndex].toJSON<IEquipmentClient>());
    return inventoryChanges;
};

export const addSpecialItem = (
    inventory: TInventoryDatabaseDocument,
    itemName: string,
    inventoryChanges: IInventoryChanges
): void => {
    if (inventory.SpecialItems.find(x => x.ItemType == itemName)) {
        return;
    }
    const specialItemIndex =
        inventory.SpecialItems.push({
            ItemType: itemName,
            Configs: [],
            Features: 1,
            UpgradeVer: 101,
            XP: 0
        }) - 1;
    inventoryChanges.SpecialItems ??= [];
    inventoryChanges.SpecialItems.push(inventory.SpecialItems[specialItemIndex].toJSON<IEquipmentClient>());
};

export const addSpaceSuit = (
    inventory: TInventoryDatabaseDocument,
    spacesuitName: string,
    inventoryChanges: IInventoryChanges = {},
    features: number | undefined = undefined
): IInventoryChanges => {
    const suitIndex =
        inventory.SpaceSuits.push({
            ItemType: spacesuitName,
            Configs: [],
            UpgradeVer: 101,
            XP: 0,
            Features: features,
            IsNew: true
        }) - 1;
    inventoryChanges.SpaceSuits ??= [];
    inventoryChanges.SpaceSuits.push(inventory.SpaceSuits[suitIndex].toJSON<IEquipmentClient>());
    return inventoryChanges;
};

export const updateSlots = (
    inventory: TInventoryDatabaseDocument,
    slotName: SlotNames,
    slotAmount: number,
    extraAmount: number
): void => {
    inventory[slotName].Slots += slotAmount;
    if (extraAmount != 0) {
        inventory[slotName].Extra ??= 0;
        inventory[slotName].Extra += extraAmount;
    }
};

const isCurrencyTracked = (usePremium: boolean): boolean => {
    return usePremium ? !config.infinitePlatinum : !config.infiniteCredits;
};

export const updateCurrency = (
    inventory: TInventoryDatabaseDocument,
    price: number,
    usePremium: boolean
): IInventoryChanges => {
    const currencyChanges: IInventoryChanges = {};
    if (price != 0 && isCurrencyTracked(usePremium)) {
        if (usePremium) {
            if (inventory.PremiumCreditsFree > 0) {
                currencyChanges.PremiumCreditsFree = Math.min(price, inventory.PremiumCreditsFree) * -1;
                inventory.PremiumCreditsFree += currencyChanges.PremiumCreditsFree;
            }
            currencyChanges.PremiumCredits = -price;
            inventory.PremiumCredits += currencyChanges.PremiumCredits;
        } else {
            currencyChanges.RegularCredits = -price;
            inventory.RegularCredits += currencyChanges.RegularCredits;
        }
        logger.debug(`currency changes `, currencyChanges);
    }
    return currencyChanges;
};

const standingLimitBinToInventoryKey: Record<
    Exclude<TStandingLimitBin, "STANDING_LIMIT_BIN_NONE">,
    keyof IDailyAffiliations
> = {
    STANDING_LIMIT_BIN_NORMAL: "DailyAffiliation",
    STANDING_LIMIT_BIN_PVP: "DailyAffiliationPvp",
    STANDING_LIMIT_BIN_LIBRARY: "DailyAffiliationLibrary",
    STANDING_LIMIT_BIN_CETUS: "DailyAffiliationCetus",
    STANDING_LIMIT_BIN_QUILLS: "DailyAffiliationQuills",
    STANDING_LIMIT_BIN_SOLARIS: "DailyAffiliationSolaris",
    STANDING_LIMIT_BIN_VENTKIDS: "DailyAffiliationVentkids",
    STANDING_LIMIT_BIN_VOX: "DailyAffiliationVox",
    STANDING_LIMIT_BIN_ENTRATI: "DailyAffiliationEntrati",
    STANDING_LIMIT_BIN_NECRALOID: "DailyAffiliationNecraloid",
    STANDING_LIMIT_BIN_ZARIMAN: "DailyAffiliationZariman",
    STANDING_LIMIT_BIN_KAHL: "DailyAffiliationKahl",
    STANDING_LIMIT_BIN_CAVIA: "DailyAffiliationCavia",
    STANDING_LIMIT_BIN_HEX: "DailyAffiliationHex"
};

export const allDailyAffiliationKeys: (keyof IDailyAffiliations)[] = Object.values(standingLimitBinToInventoryKey);

const getStandingLimit = (inventory: IDailyAffiliations, bin: TStandingLimitBin): number => {
    if (bin == "STANDING_LIMIT_BIN_NONE" || config.noDailyStandingLimits) {
        return Number.MAX_SAFE_INTEGER;
    }
    return inventory[standingLimitBinToInventoryKey[bin]];
};

const updateStandingLimit = (inventory: IDailyAffiliations, bin: TStandingLimitBin, subtrahend: number): void => {
    if (bin != "STANDING_LIMIT_BIN_NONE" && !config.noDailyStandingLimits) {
        inventory[standingLimitBinToInventoryKey[bin]] -= subtrahend;
    }
};

export const addStanding = (
    inventory: TInventoryDatabaseDocument,
    syndicateTag: string,
    gainedStanding: number,
    isMedallion: boolean = false
): IAffiliationMods => {
    let syndicate = inventory.Affiliations.find(x => x.Tag == syndicateTag);
    const syndicateMeta = ExportSyndicates[syndicateTag];

    if (!syndicate) {
        syndicate =
            inventory.Affiliations[inventory.Affiliations.push({ Tag: syndicateTag, Standing: 0, Title: 0 }) - 1];
    }

    const max = getMaxStanding(syndicateMeta, syndicate.Title ?? 0);
    if (syndicate.Standing + gainedStanding > max) gainedStanding = max - syndicate.Standing;

    if (!isMedallion || syndicateMeta.medallionsCappedByDailyLimit) {
        if (gainedStanding > getStandingLimit(inventory, syndicateMeta.dailyLimitBin)) {
            gainedStanding = getStandingLimit(inventory, syndicateMeta.dailyLimitBin);
        }
        updateStandingLimit(inventory, syndicateMeta.dailyLimitBin, gainedStanding);
    }

    syndicate.Standing += gainedStanding;
    return {
        Tag: syndicateTag,
        Standing: gainedStanding
    };
};

// TODO: AffiliationMods support (Nightwave).
export const updateGeneric = async (data: IGenericUpdate, accountId: string): Promise<IUpdateNodeIntrosResponse> => {
    const inventory = await getInventory(accountId, "NodeIntrosCompleted MiscItems");

    // Make it an array for easier parsing.
    if (typeof data.NodeIntrosCompleted === "string") {
        data.NodeIntrosCompleted = [data.NodeIntrosCompleted];
    }

    const inventoryChanges: IInventoryChanges = {};
    for (const node of data.NodeIntrosCompleted) {
        if (node == "KayaFirstVisitPack") {
            inventoryChanges.MiscItems = [
                {
                    ItemType: "/Lotus/Types/Items/MiscItems/1999FixedStickersPack",
                    ItemCount: 1
                }
            ];
            addMiscItems(inventory, inventoryChanges.MiscItems);
        } else if (node == "BeatCaliberChicks") {
            await addEmailItem(inventory, "/Lotus/Types/Items/EmailItems/BeatCaliberChicksEmailItem", inventoryChanges);
        } else if (node == "ClearedFiveLoops") {
            await addEmailItem(inventory, "/Lotus/Types/Items/EmailItems/ClearedFiveLoopsEmailItem", inventoryChanges);
        }
    }

    // Combine the two arrays into one.
    data.NodeIntrosCompleted = inventory.NodeIntrosCompleted.concat(data.NodeIntrosCompleted);

    // Remove duplicate entries.
    const nodes = [...new Set(data.NodeIntrosCompleted)];

    inventory.NodeIntrosCompleted = nodes;
    await inventory.save();

    return {
        MissionRewards: [],
        InventoryChanges: inventoryChanges
    };
};

export const addEquipment = (
    inventory: TInventoryDatabaseDocument,
    category: TEquipmentKey,
    type: string,
    modularParts: string[] | undefined = undefined,
    inventoryChanges: IInventoryChanges = {},
    defaultOverwrites: Partial<IEquipmentDatabase> | undefined = undefined
): IInventoryChanges => {
    const equipment = Object.assign(
        {
            ItemType: type,
            Configs: [],
            XP: 0,
            ModularParts: modularParts,
            IsNew: true
        },
        defaultOverwrites
    );
    const index = inventory[category].push(equipment) - 1;

    inventoryChanges[category] ??= [];
    inventoryChanges[category].push(inventory[category][index].toJSON<IEquipmentClient>());
    return inventoryChanges;
};

export const addCustomization = (
    inventory: TInventoryDatabaseDocument,
    customizationName: string,
    inventoryChanges: IInventoryChanges = {}
): IInventoryChanges => {
    if (!inventory.FlavourItems.find(x => x.ItemType == customizationName)) {
        const flavourItemIndex = inventory.FlavourItems.push({ ItemType: customizationName }) - 1;
        // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
        inventoryChanges.FlavourItems ??= [];
        (inventoryChanges.FlavourItems as IFlavourItem[]).push(
            inventory.FlavourItems[flavourItemIndex].toJSON<IFlavourItem>()
        );
    }
    return inventoryChanges;
};

export const addSkin = (
    inventory: TInventoryDatabaseDocument,
    typeName: string,
    inventoryChanges: IInventoryChanges = {}
): IInventoryChanges => {
    const index = inventory.WeaponSkins.push({ ItemType: typeName, IsNew: true }) - 1;
    // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
    inventoryChanges.WeaponSkins ??= [];
    (inventoryChanges.WeaponSkins as IWeaponSkinClient[]).push(
        inventory.WeaponSkins[index].toJSON<IWeaponSkinClient>()
    );
    return inventoryChanges;
};

const addCrewShipWeaponSkin = (
    inventory: TInventoryDatabaseDocument,
    typeName: string,
    inventoryChanges: IInventoryChanges = {}
): IInventoryChanges => {
    const index = inventory.CrewShipWeaponSkins.push({ ItemType: typeName }) - 1;
    // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
    inventoryChanges.CrewShipWeaponSkins ??= [];
    (inventoryChanges.CrewShipWeaponSkins as IUpgradeClient[]).push(
        inventory.CrewShipWeaponSkins[index].toJSON<IUpgradeClient>()
    );
    return inventoryChanges;
};

const addCrewShip = (
    inventory: TInventoryDatabaseDocument,
    typeName: string,
    inventoryChanges: IInventoryChanges = {}
): IInventoryChanges => {
    if (inventory.CrewShips.length != 0) {
        logger.warn("refusing to add CrewShip because account already has one");
    } else {
        const index = inventory.CrewShips.push({ ItemType: typeName }) - 1;
        inventoryChanges.CrewShips ??= [];
        inventoryChanges.CrewShips.push(inventory.CrewShips[index].toJSON<IEquipmentClient>());
    }
    return inventoryChanges;
};

const addCrewShipHarness = (
    inventory: TInventoryDatabaseDocument,
    typeName: string,
    inventoryChanges: IInventoryChanges = {}
): IInventoryChanges => {
    if (inventory.CrewShipHarnesses.length != 0) {
        logger.warn("refusing to add CrewShipHarness because account already has one");
    } else {
        const index = inventory.CrewShipHarnesses.push({ ItemType: typeName }) - 1;
        inventoryChanges.CrewShipHarnesses ??= [];
        inventoryChanges.CrewShipHarnesses.push(inventory.CrewShipHarnesses[index].toJSON<IEquipmentClient>());
    }
    return inventoryChanges;
};

const addMotorcycle = (
    inventory: TInventoryDatabaseDocument,
    typeName: string,
    inventoryChanges: IInventoryChanges = {}
): IInventoryChanges => {
    if (inventory.Motorcycles.length != 0) {
        logger.warn("refusing to add Motorcycle because account already has one");
    } else {
        const index = inventory.Motorcycles.push({ ItemType: typeName }) - 1;
        inventoryChanges.Motorcycles ??= [];
        inventoryChanges.Motorcycles.push(inventory.Motorcycles[index].toJSON<IEquipmentClient>());
    }
    return inventoryChanges;
};

const addDrone = (
    inventory: TInventoryDatabaseDocument,
    typeName: string,
    inventoryChanges: IInventoryChanges = {}
): IInventoryChanges => {
    const index = inventory.Drones.push({ ItemType: typeName, CurrentHP: ExportDrones[typeName].durability }) - 1;
    inventoryChanges.Drones ??= [];
    inventoryChanges.Drones.push(inventory.Drones[index].toJSON<IDroneClient>());
    return inventoryChanges;
};

export const addEmailItem = async (
    inventory: TInventoryDatabaseDocument,
    typeName: string,
    inventoryChanges: IInventoryChanges = {}
): Promise<IInventoryChanges> => {
    const meta = ExportEmailItems[typeName];
    const emailItem = inventory.EmailItems.find(x => x.ItemType == typeName);
    if (!emailItem || !meta.sendOnlyOnce) {
        await createMessage(inventory.accountOwnerId, [convertInboxMessage(meta.message)]);

        if (emailItem) {
            emailItem.ItemCount += 1;
        } else {
            inventory.EmailItems.push({ ItemType: typeName, ItemCount: 1 });
        }

        inventoryChanges.EmailItems ??= [];
        inventoryChanges.EmailItems.push({ ItemType: typeName, ItemCount: 1 });
    }
    return inventoryChanges;
};

//TODO: wrong id is not erroring
export const addGearExpByCategory = (
    inventory: TInventoryDatabaseDocument,
    gearArray: IEquipmentClient[],
    categoryName: TEquipmentKey
): void => {
    const category = inventory[categoryName];

    gearArray.forEach(({ ItemId, XP }) => {
        if (!XP) {
            return;
        }

        const item = category.id(ItemId.$oid);
        if (item) {
            item.XP ??= 0;
            item.XP += XP;

            const xpinfoIndex = inventory.XPInfo.findIndex(x => x.ItemType == item.ItemType);
            if (xpinfoIndex !== -1) {
                const xpinfo = inventory.XPInfo[xpinfoIndex];
                xpinfo.XP += XP;
            } else {
                inventory.XPInfo.push({
                    ItemType: item.ItemType,
                    XP: XP
                });
            }
        }
    });
};

export const addMiscItems = (inventory: TInventoryDatabaseDocument, itemsArray: IMiscItem[]): void => {
    const { MiscItems } = inventory;

    itemsArray.forEach(({ ItemCount, ItemType }) => {
        if (ItemCount == 0) {
            return;
        }

        let itemIndex = MiscItems.findIndex(x => x.ItemType === ItemType);
        if (itemIndex == -1) {
            itemIndex = MiscItems.push({ ItemType, ItemCount: 0 }) - 1;
        }

        MiscItems[itemIndex].ItemCount += ItemCount;

        if (ItemType == "/Lotus/Types/Items/MiscItems/ArgonCrystal" && ItemCount > 0) {
            inventory.FoundToday ??= [];
            let foundTodayIndex = inventory.FoundToday.findIndex(x => x.ItemType == ItemType);
            if (foundTodayIndex == -1) {
                foundTodayIndex = inventory.FoundToday.push({ ItemType, ItemCount: 0 }) - 1;
            }
            inventory.FoundToday[foundTodayIndex].ItemCount += ItemCount;
            if (inventory.FoundToday[foundTodayIndex].ItemCount <= 0) {
                inventory.FoundToday.splice(foundTodayIndex, 1);
            }
            if (inventory.FoundToday.length == 0) {
                inventory.FoundToday = undefined;
            }
        }

        if (MiscItems[itemIndex].ItemCount == 0) {
            MiscItems.splice(itemIndex, 1);
        } else if (MiscItems[itemIndex].ItemCount <= 0) {
            logger.warn(`account now owns a negative amount of ${ItemType}`);
        }
    });
};

const applyArrayChanges = (arr: ITypeCount[], changes: ITypeCount[]): void => {
    for (const change of changes) {
        if (change.ItemCount != 0) {
            let itemIndex = arr.findIndex(x => x.ItemType === change.ItemType);
            if (itemIndex == -1) {
                itemIndex = arr.push({ ItemType: change.ItemType, ItemCount: 0 }) - 1;
            }

            arr[itemIndex].ItemCount += change.ItemCount;
            if (arr[itemIndex].ItemCount == 0) {
                arr.splice(itemIndex, 1);
            } else if (arr[itemIndex].ItemCount <= 0) {
                logger.warn(`account now owns a negative amount of ${change.ItemType}`);
            }
        }
    }
};

export const addShipDecorations = (inventory: TInventoryDatabaseDocument, itemsArray: ITypeCount[]): void => {
    applyArrayChanges(inventory.ShipDecorations, itemsArray);
};

export const addConsumables = (inventory: TInventoryDatabaseDocument, itemsArray: ITypeCount[]): void => {
    applyArrayChanges(inventory.Consumables, itemsArray);
};

export const addCrewShipRawSalvage = (inventory: TInventoryDatabaseDocument, itemsArray: ITypeCount[]): void => {
    applyArrayChanges(inventory.CrewShipRawSalvage, itemsArray);
};

export const addCrewShipAmmo = (inventory: TInventoryDatabaseDocument, itemsArray: ITypeCount[]): void => {
    applyArrayChanges(inventory.CrewShipAmmo, itemsArray);
};

export const addRecipes = (inventory: TInventoryDatabaseDocument, itemsArray: ITypeCount[]): void => {
    applyArrayChanges(inventory.Recipes, itemsArray);
};

export const addLevelKeys = (inventory: TInventoryDatabaseDocument, itemsArray: ITypeCount[]): void => {
    applyArrayChanges(inventory.LevelKeys, itemsArray);
};

export const addMods = (inventory: TInventoryDatabaseDocument, itemsArray: IRawUpgrade[]): void => {
    const { RawUpgrades } = inventory;

    itemsArray.forEach(({ ItemType, ItemCount }) => {
        if (ItemCount == 0) {
            return;
        }

        let itemIndex = RawUpgrades.findIndex(x => x.ItemType === ItemType);
        if (itemIndex == -1) {
            itemIndex = RawUpgrades.push({ ItemType, ItemCount: 0 }) - 1;
        }

        RawUpgrades[itemIndex].ItemCount += ItemCount;
        if (RawUpgrades[itemIndex].ItemCount == 0) {
            RawUpgrades.splice(itemIndex, 1);
        } else if (RawUpgrades[itemIndex].ItemCount <= 0) {
            logger.warn(`account now owns a negative amount of ${ItemType}`);
        }
    });
};

export const addFusionTreasures = (inventory: TInventoryDatabaseDocument, itemsArray: IFusionTreasure[]): void => {
    const { FusionTreasures } = inventory;
    itemsArray.forEach(({ ItemType, ItemCount, Sockets }) => {
        const itemIndex = FusionTreasures.findIndex(i => i.ItemType == ItemType && (i.Sockets || 0) == (Sockets || 0));

        if (itemIndex !== -1) {
            FusionTreasures[itemIndex].ItemCount += ItemCount;
            if (FusionTreasures[itemIndex].ItemCount == 0) {
                FusionTreasures.splice(itemIndex, 1);
            } else if (FusionTreasures[itemIndex].ItemCount <= 0) {
                logger.warn(`account now owns a negative amount of ${ItemType}`);
            }
        } else {
            FusionTreasures.push({ ItemCount, ItemType, Sockets });
        }
    });
};

export const addFocusXpIncreases = (inventory: TInventoryDatabaseDocument, focusXpPlus: number[]): void => {
    enum FocusType {
        AP_UNIVERSAL,
        AP_ATTACK,
        AP_DEFENSE,
        AP_TACTIC,
        AP_POWER,
        AP_PRECEPT,
        AP_FUSION,
        AP_WARD,
        AP_UMBRA,
        AP_ANY
    }

    inventory.FocusXP ??= { AP_ATTACK: 0, AP_DEFENSE: 0, AP_TACTIC: 0, AP_POWER: 0, AP_WARD: 0 };
    inventory.FocusXP.AP_ATTACK += focusXpPlus[FocusType.AP_ATTACK];
    inventory.FocusXP.AP_DEFENSE += focusXpPlus[FocusType.AP_DEFENSE];
    inventory.FocusXP.AP_TACTIC += focusXpPlus[FocusType.AP_TACTIC];
    inventory.FocusXP.AP_POWER += focusXpPlus[FocusType.AP_POWER];
    inventory.FocusXP.AP_WARD += focusXpPlus[FocusType.AP_WARD];

    inventory.DailyFocus -= focusXpPlus.reduce((a, b) => a + b, 0);
};

export const addChallenges = (
    inventory: TInventoryDatabaseDocument,
    ChallengeProgress: IChallengeProgress[],
    SeasonChallengeCompletions: ISeasonChallenge[] | undefined
): IAffiliationMods[] => {
    ChallengeProgress.forEach(({ Name, Progress }) => {
        const itemIndex = inventory.ChallengeProgress.findIndex(i => i.Name === Name);

        if (itemIndex !== -1) {
            inventory.ChallengeProgress[itemIndex].Progress = Progress;
        } else {
            inventory.ChallengeProgress.push({ Name, Progress });
        }
    });

    const affiliationMods: IAffiliationMods[] = [];
    if (SeasonChallengeCompletions) {
        for (const challenge of SeasonChallengeCompletions) {
            // Ignore challenges that weren't completed just now
            if (!ChallengeProgress.find(x => challenge.challenge.indexOf(x.Name) != -1)) {
                continue;
            }

            const meta = ExportNightwave.challenges[challenge.challenge];
            logger.debug("Completed challenge", meta);

            let affiliation = inventory.Affiliations.find(x => x.Tag == ExportNightwave.affiliationTag);
            if (!affiliation) {
                affiliation =
                    inventory.Affiliations[
                        inventory.Affiliations.push({
                            Tag: ExportNightwave.affiliationTag,
                            Standing: 0
                        }) - 1
                    ];
            }
            affiliation.Standing += meta.standing;

            if (affiliationMods.length == 0) {
                affiliationMods.push({ Tag: ExportNightwave.affiliationTag });
            }
            affiliationMods[0].Standing ??= 0;
            affiliationMods[0].Standing += meta.standing;
        }
    }
    return affiliationMods;
};

export const addMissionComplete = (inventory: TInventoryDatabaseDocument, { Tag, Completes }: IMission): void => {
    const { Missions } = inventory;
    const itemIndex = Missions.findIndex(item => item.Tag === Tag);

    if (itemIndex !== -1) {
        Missions[itemIndex].Completes += Completes;
    } else {
        Missions.push({ Tag, Completes });
    }
};

export const addBooster = (ItemType: string, time: number, inventory: TInventoryDatabaseDocument): void => {
    const currentTime = Math.floor(Date.now() / 1000);

    const { Boosters } = inventory;

    const itemIndex = Boosters.findIndex(booster => booster.ItemType === ItemType);

    if (itemIndex !== -1) {
        const existingBooster = Boosters[itemIndex];
        existingBooster.ExpiryDate = Math.max(existingBooster.ExpiryDate, currentTime) + time;
    } else {
        Boosters.push({ ItemType, ExpiryDate: currentTime + time });
    }
};

export const updateSyndicate = (
    inventory: TInventoryDatabaseDocument,
    syndicateUpdate: IMissionInventoryUpdateRequest["AffiliationChanges"]
): void => {
    syndicateUpdate?.forEach(affiliation => {
        const syndicate = inventory.Affiliations.find(x => x.Tag == affiliation.Tag);
        if (syndicate !== undefined) {
            syndicate.Standing += affiliation.Standing;
            syndicate.Title = syndicate.Title === undefined ? affiliation.Title : syndicate.Title + affiliation.Title;
        } else {
            inventory.Affiliations.push({
                Standing: affiliation.Standing,
                Title: affiliation.Title,
                Tag: affiliation.Tag,
                FreeFavorsEarned: [],
                FreeFavorsUsed: []
            });
        }
        updateStandingLimit(inventory, ExportSyndicates[affiliation.Tag].dailyLimitBin, affiliation.Standing);
    });
};

/**
 * @returns object with inventory keys of changes or empty object when no items were added
 */
export const addKeyChainItems = async (
    inventory: TInventoryDatabaseDocument,
    keyChainData: IKeyChainRequest
): Promise<IInventoryChanges> => {
    const keyChainItems = getKeyChainItems(keyChainData);

    logger.debug(
        `adding key chain items ${keyChainItems.join()} for ${keyChainData.KeyChain} at stage ${keyChainData.ChainStage}`
    );

    const nonStoreItems = keyChainItems.map(item => fromStoreItem(item));

    const inventoryChanges: IInventoryChanges = {};

    for (const item of nonStoreItems) {
        const inventoryChangesDelta = await addItem(inventory, item);
        combineInventoryChanges(inventoryChanges, inventoryChangesDelta);
    }

    return inventoryChanges;
};

export const createLibraryDailyTask = (): ILibraryDailyTaskInfo => {
    const enemyTypes = getRandomElement(libraryDailyTasks);
    const enemyAvatar = ExportEnemies.avatars[enemyTypes[0]];
    const scansRequired = getRandomInt(2, 4);
    return {
        EnemyTypes: enemyTypes,
        EnemyLocTag: enemyAvatar.name,
        EnemyIcon: enemyAvatar.icon!,
        ScansRequired: scansRequired,
        RewardStoreItem: "/Lotus/StoreItems/Upgrades/Mods/FusionBundles/RareFusionBundle",
        RewardQuantity: Math.trunc(scansRequired * 2.5),
        RewardStanding: 2500 * scansRequired
    };
};

const createCalendar = (): ICalendarProgress => {
    return {
        Version: 19,
        Iteration: 2,
        YearProgress: { Upgrades: [] },
        SeasonProgress: {
            SeasonType: "CST_SPRING",
            LastCompletedDayIdx: -1,
            LastCompletedChallengeDayIdx: -1,
            ActivatedChallenges: []
        }
    };
};

export const setupKahlSyndicate = (inventory: TInventoryDatabaseDocument): void => {
    inventory.Affiliations.push({
        Title: 1,
        Standing: 1,
        WeeklyMissions: [
            {
                MissionIndex: 0,
                CompletedMission: false,
                JobManifest: "/Lotus/Syndicates/Kahl/KahlJobManifestVersionThree",
                WeekCount: 0,
                Challenges: []
            }
        ],
        Tag: "KahlSyndicate"
    });
};