//this is a controller for the claimCompletedRecipe route
//it will claim a recipe for the user

import { RequestHandler } from "express";
import { logger } from "@/src/utils/logger";
import { getRecipe } from "@/src/services/itemDataService";
import { IOid } from "@/src/types/commonTypes";
import { getJSONfromString } from "@/src/helpers/stringHelpers";
import { getAccountIdForRequest } from "@/src/services/loginService";
import {
    getInventory,
    updateCurrency,
    addItem,
    addRecipes,
    occupySlot,
    combineInventoryChanges
} from "@/src/services/inventoryService";
import { IInventoryChanges } from "@/src/types/purchaseTypes";
import { IEquipmentClient } from "@/src/types/inventoryTypes/commonInventoryTypes";
import { InventorySlot } from "@/src/types/inventoryTypes/inventoryTypes";

interface IClaimCompletedRecipeRequest {
    RecipeIds: IOid[];
}

export const claimCompletedRecipeController: RequestHandler = async (req, res) => {
    const claimCompletedRecipeRequest = getJSONfromString<IClaimCompletedRecipeRequest>(String(req.body));
    const accountId = await getAccountIdForRequest(req);
    if (!accountId) throw new Error("no account id");

    const inventory = await getInventory(accountId);
    const pendingRecipe = inventory.PendingRecipes.id(claimCompletedRecipeRequest.RecipeIds[0].$oid);
    if (!pendingRecipe) {
        throw new Error(`no pending recipe found with id ${claimCompletedRecipeRequest.RecipeIds[0].$oid}`);
    }

    //check recipe is indeed ready to be completed
    // if (pendingRecipe.CompletionDate > new Date()) {
    //     throw new Error(`recipe ${pendingRecipe._id} is not ready to be completed`);
    // }

    inventory.PendingRecipes.pull(pendingRecipe._id);

    const recipe = getRecipe(pendingRecipe.ItemType);
    if (!recipe) {
        throw new Error(`no completed item found for recipe ${pendingRecipe._id.toString()}`);
    }

    if (req.query.cancel) {
        const inventoryChanges: IInventoryChanges = {
            ...updateCurrency(inventory, recipe.buildPrice * -1, false)
        };

        const equipmentIngredients = new Set();
        for (const category of ["LongGuns", "Pistols", "Melee"] as const) {
            if (pendingRecipe[category]) {
                pendingRecipe[category].forEach(item => {
                    const index = inventory[category].push(item) - 1;
                    inventoryChanges[category] ??= [];
                    inventoryChanges[category].push(inventory[category][index].toJSON<IEquipmentClient>());
                    equipmentIngredients.add(item.ItemType);

                    occupySlot(inventory, InventorySlot.WEAPONS, false);
                    inventoryChanges.WeaponBin ??= { Slots: 0 };
                    inventoryChanges.WeaponBin.Slots -= 1;
                });
            }
        }
        for (const ingredient of recipe.ingredients) {
            if (!equipmentIngredients.has(ingredient.ItemType)) {
                combineInventoryChanges(
                    inventoryChanges,
                    await addItem(inventory, ingredient.ItemType, ingredient.ItemCount)
                );
            }
        }

        await inventory.save();
        res.json(inventoryChanges); // Not a bug: In the specific case of cancelling a recipe, InventoryChanges are expected to be the root.
    } else {
        logger.debug("Claiming Recipe", { recipe, pendingRecipe });

        if (recipe.secretIngredientAction == "SIA_SPECTRE_LOADOUT_COPY") {
            inventory.PendingSpectreLoadouts ??= [];
            inventory.SpectreLoadouts ??= [];

            const pendingLoadoutIndex = inventory.PendingSpectreLoadouts.findIndex(
                x => x.ItemType == recipe.resultType
            );
            if (pendingLoadoutIndex != -1) {
                const loadoutIndex = inventory.SpectreLoadouts.findIndex(x => x.ItemType == recipe.resultType);
                if (loadoutIndex != -1) {
                    inventory.SpectreLoadouts.splice(loadoutIndex, 1);
                }
                logger.debug(
                    "moving spectre loadout from pending to active",
                    inventory.toJSON().PendingSpectreLoadouts![pendingLoadoutIndex]
                );
                inventory.SpectreLoadouts.push(inventory.PendingSpectreLoadouts[pendingLoadoutIndex]);
                inventory.PendingSpectreLoadouts.splice(pendingLoadoutIndex, 1);
            }
        } else if (recipe.secretIngredientAction == "SIA_UNBRAND") {
            inventory.BrandedSuits!.splice(
                inventory.BrandedSuits!.findIndex(x => x.equals(pendingRecipe.SuitToUnbrand)),
                1
            );
        }

        let InventoryChanges = {};
        if (recipe.consumeOnUse) {
            addRecipes(inventory, [
                {
                    ItemType: pendingRecipe.ItemType,
                    ItemCount: -1
                }
            ]);
        }
        if (req.query.rush) {
            const end = Math.trunc(pendingRecipe.CompletionDate.getTime() / 1000);
            const start = end - recipe.buildTime;
            const secondsElapsed = Math.trunc(Date.now() / 1000) - start;
            const progress = secondsElapsed / recipe.buildTime;
            logger.debug(`rushing recipe at ${Math.trunc(progress * 100)}% completion`);
            const cost = Math.round(recipe.skipBuildTimePrice * (1 - (progress - 0.5)));
            InventoryChanges = {
                ...InventoryChanges,
                ...updateCurrency(inventory, cost, true)
            };
        }
        if (recipe.secretIngredientAction != "SIA_UNBRAND") {
            InventoryChanges = {
                ...InventoryChanges,
                ...(await addItem(inventory, recipe.resultType, recipe.num, false))
            };
        }
        await inventory.save();
        res.json({ InventoryChanges });
    }
};