export class SaveSystem {
    constructor(game) {
        this.game = game;
        this.key = 'bomzh_rpg_save';
    }

    save() {
        const data = {
            version: 5,
            timestamp: Date.now(),
            gameTime: this.game.gameTime,
            gameDay: this.game.gameDay,
            player: {
                stats: { ...this.game.player.stats },
                position: {
                    x: this.game.player.position.x,
                    y: this.game.player.position.y,
                    z: this.game.player.position.z
                },
                stamina: this.game.player.stamina,
                isDiseased: this.game.player.isDiseased,
                diseaseTimer: this.game.player.diseaseTimer,
                addictionLevel: this.game.player.addictionLevel,
                lastDrinkTime: this.game.player.lastDrinkTime
            },
            inventory: { ...this.game.inventory.items },
            inventoryMaxSlots: this.game.inventory.maxSlots,
            quests: this.game.questSystem.quests.map(q => ({
                id: q.id,
                progress: q.progress,
                completed: q.completed || false
            })),
            weather: this.game.weather.current,
            temperature: this.game.weather.temperature,
            skills: this.game.skills.getSaveData(),
            dog: {
                adopted: this.game.dog.adopted
            },
            reputation: this.game.reputation.getSaveData(),
            seasons: this.game.seasons.getSaveData(),
            jobSystem: this.game.jobSystem.getSaveData(),
            equipment: this.game.equipment.getSaveData(),
            achievements: this.game.achievements.getSaveData(),
            housing: this.game.housing.getSaveData(),
            gameStats: {
                totalJobsCompleted: this.game.totalJobsCompleted,
                totalBottlesSold: this.game.totalBottlesSold,
                totalCrafted: this.game.totalCrafted,
                talkedNPCs: [...this.game.talkedNPCs],
                visitedLocations: [...this.game.visitedLocations],
                enemiesDefeated: this.game.enemiesDefeated,
                consecutiveFights: this.game.consecutiveFights
            }
        };

        try {
            localStorage.setItem(this.key, JSON.stringify(data));
            this.game.notify('Игра сохранена!');
            return true;
        } catch (e) {
            this.game.notify('Ошибка сохранения!');
            return false;
        }
    }

    load() {
        try {
            const raw = localStorage.getItem(this.key);
            if (!raw) return false;

            const data = JSON.parse(raw);
            if (!data || data.version < 2) return false;

            this.game.gameTime = data.gameTime;
            this.game.gameDay = data.gameDay;

            // Восстановление игрока
            Object.assign(this.game.player.stats, data.player.stats);
            this.game.player.position.set(
                data.player.position.x,
                data.player.position.y,
                data.player.position.z
            );
            if (data.player.stamina !== undefined) {
                this.game.player.stamina = data.player.stamina;
            }
            if (data.player.isDiseased) {
                this.game.player.isDiseased = data.player.isDiseased;
                this.game.player.diseaseTimer = data.player.diseaseTimer || 0;
            }
            if (data.player.addictionLevel) {
                this.game.player.addictionLevel = data.player.addictionLevel;
                this.game.player.lastDrinkTime = data.player.lastDrinkTime || 0;
            }

            // Инвентарь
            this.game.inventory.items = { ...data.inventory };
            if (data.inventoryMaxSlots) {
                this.game.inventory.maxSlots = data.inventoryMaxSlots;
            }

            // Квесты
            data.quests.forEach(saved => {
                const quest = this.game.questSystem.quests.find(q => q.id === saved.id);
                if (quest) {
                    quest.progress = saved.progress;
                    quest.completed = saved.completed;
                }
            });

            // Погода
            if (data.weather) {
                this.game.weather.current = data.weather;
                this.game.weather.temperature = data.temperature || 15;
                this.game.particles.setWeather(data.weather);
            }

            // Навыки
            if (data.skills) {
                this.game.skills.loadSaveData(data.skills);
            }

            // Пёс
            if (data.dog && data.dog.adopted) {
                this.game.dog.adopt();
            }

            // Репутация
            if (data.reputation) {
                this.game.reputation.loadSaveData(data.reputation);
            }

            // Сезоны
            if (data.seasons) {
                this.game.seasons.loadSaveData(data.seasons);
            }

            // Работа
            if (data.jobSystem) {
                this.game.jobSystem.loadSaveData(data.jobSystem);
            }

            // Экипировка
            if (data.equipment) {
                this.game.equipment.loadSaveData(data.equipment);
            }

            // Достижения
            if (data.achievements) {
                this.game.achievements.loadSaveData(data.achievements);
            }

            // Укрытие
            if (data.housing) {
                this.game.housing.loadSaveData(data.housing);
            }

            // Статистика
            if (data.gameStats) {
                this.game.totalJobsCompleted = data.gameStats.totalJobsCompleted || 0;
                this.game.totalBottlesSold = data.gameStats.totalBottlesSold || 0;
                this.game.totalCrafted = data.gameStats.totalCrafted || 0;
                this.game.talkedNPCs = new Set(data.gameStats.talkedNPCs || []);
                this.game.visitedLocations = new Set(data.gameStats.visitedLocations || []);
                this.game.enemiesDefeated = data.gameStats.enemiesDefeated || 0;
                this.game.consecutiveFights = data.gameStats.consecutiveFights || 0;
            }

            this.game.notify('Игра загружена!');
            return true;
        } catch (e) {
            this.game.notify('Ошибка загрузки!');
            return false;
        }
    }

    hasSave() {
        return !!localStorage.getItem(this.key);
    }

    deleteSave() {
        localStorage.removeItem(this.key);
    }
}