import type { RequestHandler } from "express";
import { getAccountIdForRequest } from "../../services/loginService.ts";
import { addMiscItem, getInventory } from "../../services/inventoryService.ts";
import { getJSONfromString } from "../../helpers/stringHelpers.ts";
import { logger } from "../../utils/logger.ts";
import type { IJournalEntry } from "../../types/inventoryTypes/inventoryTypes.ts";
import type { IAffiliationMods } from "../../types/purchaseTypes.ts";

export const researchMushroomController: RequestHandler = async (req, res) => {
    const accountId = await getAccountIdForRequest(req);
    const inventory = await getInventory(accountId, "MiscItems NokkoColony Affiliations");
    const payload = getJSONfromString<IResearchMushroom>(String(req.body));
    switch (payload.Mode) {
        case "r": {
            const InventoryChanges = {};
            const AffiliationMods: IAffiliationMods[] = [];

            addMiscItem(inventory, payload.MushroomItem, payload.Amount * -1, InventoryChanges);
            if (payload.Convert) {
                addMiscItem(inventory, "/Lotus/Types/Items/MiscItems/MushroomFood", payload.Amount, InventoryChanges);
            }

            inventory.NokkoColony ??= {
                FeedLevel: 0,
                JournalEntries: []
            };

            let journalEntry = inventory.NokkoColony.JournalEntries.find(x => x.EntryType == payload.MushroomItem);
            if (!journalEntry) {
                journalEntry = { EntryType: payload.MushroomItem, Progress: 0 };
                inventory.NokkoColony.JournalEntries.push(journalEntry);
            }

            let syndicate = inventory.Affiliations.find(x => x.Tag == "NightcapJournalSyndicate");
            if (!syndicate) {
                syndicate = { Tag: "NightcapJournalSyndicate", Title: 0, Standing: 0 };
                inventory.Affiliations.push(syndicate);
            }
            const completedBefore = inventory.NokkoColony.JournalEntries.filter(
                entry => getJournalRank(entry) === 3
            ).length;
            const PrevRank = syndicateTitleThresholds.reduce(
                (rank, threshold, i) => (completedBefore >= threshold ? i : rank),
                0
            );

            if (getJournalRank(journalEntry) < 3) journalEntry.Progress += payload.Amount;

            const completedAfter = inventory.NokkoColony.JournalEntries.filter(
                entry => getJournalRank(entry) === 3
            ).length;
            const NewRank = syndicateTitleThresholds.reduce(
                (rank, threshold, i) => (completedAfter >= threshold ? i : rank),
                0
            );

            if (NewRank > (syndicate.Title ?? 0)) {
                syndicate.Title = NewRank;
                AffiliationMods.push({ Tag: "NightcapJournalSyndicate", Title: NewRank });
            }

            await inventory.save();
            res.json({
                PrevRank,
                NewRank,
                Progress: journalEntry.Progress,
                InventoryChanges,
                AffiliationMods
            });
            break;
        }

        default:
            logger.debug(`data provided to ${req.path}: ${String(req.body)}`);
            throw new Error(`unknown researchMushroom mode: ${payload.Mode}`);
    }
};

interface IResearchMushroom {
    Mode: string; // r
    MushroomItem: string;
    Amount: number;
    Convert: boolean;
}

const journalEntriesRank: Record<string, number> = {
    "/Lotus/Types/Items/MushroomJournal/PlainMushroomJournalItem": 1,
    "/Lotus/Types/Items/MushroomJournal/GasMushroomJournalItem": 4,
    "/Lotus/Types/Items/MushroomJournal/ToxinMushroomJournalItem": 3,
    "/Lotus/Types/Items/MushroomJournal/ViralMushroomJournalItem": 4,
    "/Lotus/Types/Items/MushroomJournal/MagneticMushroomJournalItem": 4,
    "/Lotus/Types/Items/MushroomJournal/ElectricMushroomJournalItem": 3,
    "/Lotus/Types/Items/MushroomJournal/TauMushroomJournalItem": 5,
    "/Lotus/Types/Items/MushroomJournal/SlashMushroomJournalItem": 3,
    "/Lotus/Types/Items/MushroomJournal/BlastMushroomJournalItem": 4,
    "/Lotus/Types/Items/MushroomJournal/ImpactMushroomJournalItem": 3,
    "/Lotus/Types/Items/MushroomJournal/ColdMushroomJournalItem": 3,
    "/Lotus/Types/Items/MushroomJournal/CorrosiveMushroomJournalItem": 4,
    "/Lotus/Types/Items/MushroomJournal/PunctureMushroomJournalItem": 3,
    "/Lotus/Types/Items/MushroomJournal/HeatMushroomJournalItem": 3,
    "/Lotus/Types/Items/MushroomJournal/RadiationMushroomJournalItem": 4,
    "/Lotus/Types/Items/MushroomJournal/VoidMushroomJournalItem": 5
};

const syndicateTitleThresholds = [0, 1, 2, 6, 12, 16];

const getJournalRank = (journalEntry: IJournalEntry): number => {
    const k = journalEntriesRank[journalEntry.EntryType];
    if (!k) return 0;

    const thresholds = [k * 1, k * 3, k * 6];

    if (journalEntry.Progress >= thresholds[2]) return 3;
    if (journalEntry.Progress >= thresholds[1]) return 2;
    if (journalEntry.Progress >= thresholds[0]) return 1;
    return 0;
};