// Production - The Idle Game: State Container & Persistence

import { PRODUCTS } from '../data/products.js';
import { BOARDROOM_PERKS, calculateSharesEarned } from '../data/boardroom.js';
import { CONTRACT_TEMPLATES } from '../data/contracts.js';
import { ACHIEVEMENTS } from '../data/achievements.js';

const STORAGE_KEY = 'production_the_idle_game_save_v1';

export function getInitialState() {
    const state = {
        version: 1,
        companyName: 'Apex Production Industries',
        cash: 30.0,
        lifetimeRevenue: 0.0,
        valuation: 30.0,
        ventureShares: 0,
        totalVentureShares: 0,
        ipoCount: 0,
        reputation: 0,
        buyMode: '1',
        activeTab: 'production',
        selectedSector: 'all',
        selectedProductId: 'wheat',
        stats: {
            totalProduced: 0,
            contractsCompleted: 0,
            managersHired: 0
        },
        products: {},
        boardroomPerks: {},
        achievements: {},
        activeContracts: [],
        lastTick: Date.now()
    };

    // Initialize all products
    PRODUCTS.forEach(p => {
        state.products[p.id] = {
            unlocked: p.unlockedDefault,
            stock: 0.0,
            lines: p.unlockedDefault ? 1 : 0,
            manager: false,
            logistics: p.unlockedDefault ? 1 : 0,
            cycleProgress: 0.0,
            isBottlenecked: false,
            totalProduced: 0.0
        };
    });

    // Initialize boardroom perks
    BOARDROOM_PERKS.forEach(perk => {
        state.boardroomPerks[perk.id] = 0;
    });

    // Initialize achievements
    ACHIEVEMENTS.forEach(ach => {
        state.achievements[ach.id] = 0;
    });

    // Generate initial starting contracts
    state.activeContracts = [
        {
            uid: 'c_start_1',
            templateId: CONTRACT_TEMPLATES[0].id,
            productId: CONTRACT_TEMPLATES[0].productId,
            title: CONTRACT_TEMPLATES[0].title,
            clientId: CONTRACT_TEMPLATES[0].clientId,
            targetAmount: CONTRACT_TEMPLATES[0].requiredAmount,
            remainingSeconds: CONTRACT_TEMPLATES[0].timeLimit,
            rewardCash: CONTRACT_TEMPLATES[0].rewardCash,
            rewardRep: CONTRACT_TEMPLATES[0].rewardRep
        }
    ];

    return state;
}

export class StateManager {
    constructor() {
        this.state = this.load();
        this.listeners = new Set();
    }

    subscribe(fn) {
        this.listeners.add(fn);
        return () => this.listeners.delete(fn);
    }

    notify(changedKeys = []) {
        for (const fn of this.listeners) {
            fn(this.state, changedKeys);
        }
    }

    load() {
        try {
            const raw = localStorage.getItem(STORAGE_KEY);
            if (!raw) return getInitialState();
            const parsed = JSON.parse(raw);
            const fresh = getInitialState();

            // Merge safely to preserve schema additions
            const merged = { ...fresh, ...parsed };
            merged.products = { ...fresh.products, ...(parsed.products || {}) };
            merged.boardroomPerks = { ...fresh.boardroomPerks, ...(parsed.boardroomPerks || {}) };
            merged.achievements = { ...fresh.achievements, ...(parsed.achievements || {}) };
            merged.stats = { ...fresh.stats, ...(parsed.stats || {}) };
            if (!Array.isArray(merged.activeContracts) || merged.activeContracts.length === 0) {
                merged.activeContracts = fresh.activeContracts;
            }
            return merged;
        } catch (err) {
            console.error('Failed to load local state, fallback to fresh:', err);
            return getInitialState();
        }
    }

    save() {
        try {
            localStorage.setItem(STORAGE_KEY, JSON.stringify(this.state));
        } catch (err) {
            console.error('Failed to save state to localStorage:', err);
        }
    }

    reset() {
        this.state = getInitialState();
        this.save();
        this.notify();
    }

    performIPO() {
        const earned = calculateSharesEarned(this.state.lifetimeRevenue);
        if (earned <= 0) return false;

        const startingBonusPerk = this.state.boardroomPerks['angel_syndicate'] || 0;
        const startingCashBonuses = [30.0, 500.0, 5000.0, 50000.0, 500000.0, 5000000.0];
        const newStartingCash = startingCashBonuses[Math.min(startingBonusPerk, startingCashBonuses.length - 1)];

        const preservedShares = this.state.ventureShares + earned;
        const preservedTotalShares = this.state.totalVentureShares + earned;
        const preservedPerks = { ...this.state.boardroomPerks };
        const preservedIpoCount = this.state.ipoCount + 1;
        const preservedAchievements = { ...this.state.achievements };

        // Fresh state
        this.state = getInitialState();
        this.state.cash = newStartingCash;
        this.state.ventureShares = preservedShares;
        this.state.totalVentureShares = preservedTotalShares;
        this.state.ipoCount = preservedIpoCount;
        this.state.boardroomPerks = preservedPerks;
        this.state.achievements = preservedAchievements;

        this.save();
        this.notify();
        return true;
    }
}

export const GState = new StateManager();