// Game Scene - Glavna igralna scena
class GameScene extends Phaser.Scene {
    constructor() {
        super({ key: 'GameScene' });
        this.terrainSystem = null;
        this.terrainContainer = null;
        this.player = null;
        this.npcs = []; // Array za NPCje

        // Settings
        this.settings = {
            viewDistance: 'HIGH', // LOW, MEDIUM, HIGH
            particles: 'HIGH', // NONE, LOW, HIGH
            shadows: true
        };
    }

    create() {
        console.log('🎮 GameScene: Initialized!');

        // Generate procedural textures
        new TextureGenerator(this).generateAll();
        window.gameState.currentScene = 'GameScene';

        const width = this.cameras.main.width;
        const height = this.cameras.main.height;

        // Setup kamere
        this.cameras.main.setBackgroundColor('#1a1a2e');

        // Initialize Isometric Utils
        this.iso = new IsometricUtils();

        // Initialize Spatial Grid
        this.spatialGrid = new SpatialGrid(10);

        // Inicializiraj terrain sistem - 100x100 mapa
        console.log('🌍 Initializing terrain...');
        try {
            this.terrainSystem = new TerrainSystem(this, 100, 100);
            this.terrainSystem.generate();

            // Terrain offset
            this.terrainOffsetX = width / 2;
            this.terrainOffsetY = 100;

            // Initialization for culling
            this.terrainSystem.init(this.terrainOffsetX, this.terrainOffsetY);

            // Initial force update to render active tiles before first frame
            this.terrainSystem.updateCulling(this.cameras.main);

            // FAZA 14: Spawn Ruin (Town Project) at fixed location near player
            console.log('🏚️ Spawning Ruin & Arena...');
            this.terrainSystem.placeStructure(55, 55, 'ruin');
            this.terrainSystem.placeStructure(75, 75, 'arena');

            // Initialize Pathfinding (Worker)
            console.log('🗺️ Initializing Pathfinding...');
            this.pathfinding = new PathfindingSystem(this);
            this.pathfinding.updateGrid();

        } catch (e) {
            console.error("Terrain system failed:", e);
        }

        // Dodaj igralca
        console.log('👤 Initializing player...');
        this.player = new Player(this, 50, 50, this.terrainOffsetX, this.terrainOffsetY);

        // Dodaj 3 NPCje (Mixed)
        console.log('🧟 Initializing NPCs...');
        const npcTypes = ['zombie', 'villager', 'merchant'];
        for (let i = 0; i < 3; i++) {
            const randomX = Phaser.Math.Between(40, 60); // Closer to center
            const randomY = Phaser.Math.Between(40, 60);
            const npc = new NPC(this, randomX, randomY, this.terrainOffsetX, this.terrainOffsetY, npcTypes[i]);
            this.npcs.push(npc);
        }

        // Dodaj 10 dodatnih Zombijev!
        for (let i = 0; i < 10; i++) {
            const randomX = Phaser.Math.Between(10, 90);
            const randomY = Phaser.Math.Between(10, 90);
            const zombie = new NPC(this, randomX, randomY, this.terrainOffsetX, this.terrainOffsetY, 'zombie');
            this.npcs.push(zombie);
        }

        // Kamera sledi igralcu
        this.cameras.main.startFollow(this.player.sprite, true, 1.0, 1.0);

        // Nastavi deadzone (100px border)
        this.cameras.main.setDeadzone(100, 100);

        // Round pixels za crisp pixel art
        this.cameras.main.roundPixels = true;

        // Zoom out za boljši pogled (85% zoom)
        this.cameras.main.setZoom(0.85);

        // Parallax oblaki
        this.createClouds();

        // Kamera kontrole
        this.setupCamera();

        // Initialize Systems
        console.log('🌦️ Initializing Unified Weather System...');
        this.weatherSystem = new WeatherSystem(this);
        this.timeSystem = this.weatherSystem; // Alias

        this.statsSystem = new StatsSystem(this);
        this.inventorySystem = new InventorySystem(this);
        this.lootSystem = new LootSystem(this);
        this.interactionSystem = new InteractionSystem(this);
        this.farmingSystem = new FarmingSystem(this);
        this.buildingSystem = new BuildingSystem(this);
        this.pathfinding = new Pathfinding(this);
        this.questSystem = new QuestSystem(this);
        this.multiplayerSystem = new MultiplayerSystem(this);

        // Initialize Sound Manager
        console.log('🎵 Initializing Sound Manager...');
        this.soundManager = new SoundManager(this);
        this.soundManager.startMusic();

        // Initialize Parallax System
        console.log('🌄 Initializing Parallax System...');
        this.parallaxSystem = new ParallaxSystem(this);

        // Initialize Particle Effects
        console.log('✨ Initializing Particle Effects...');
        this.particleEffects = new ParticleEffects(this);
        this.particleEffects.createFallingLeaves();

        // Generate Item Sprites for UI
        TextureGenerator.createItemSprites(this);

        // Launch UI Scene
        console.log('🖥️ Launching UI Scene...');
        this.scene.launch('UIScene');

        // Initialize Save System
        this.saveSystem = new SaveSystem(this);

        // Auto-load if available
        this.saveSystem.loadGame();

        // Debug Text
        this.add.text(10, 10, 'NovaFarma Alpha v0.6', { font: '16px monospace', fill: '#ffffff' })
            .setScrollFactor(0).setDepth(10000);

        console.log('✅ GameScene ready - FAZA 20 (Full Features)!');
    }

    setupCamera() {
        const cam = this.cameras.main;

        // Zoom kontrole (Mouse Wheel)
        this.input.on('wheel', (pointer, gameObjects, deltaX, deltaY, deltaZ) => {
            const zoomSpeed = 0.001;
            const newZoom = Phaser.Math.Clamp(
                cam.zoom - deltaY * zoomSpeed,
                0.3,
                2.0
            );
            cam.setZoom(newZoom);
        });

        // Q/E za zoom
        this.zoomKeys = this.input.keyboard.addKeys({
            zoomIn: Phaser.Input.Keyboard.KeyCodes.Q,
            zoomOut: Phaser.Input.Keyboard.KeyCodes.E
        });

        // Save/Load Keys
        this.input.keyboard.on('keydown-F8', () => this.saveGame());
        this.input.keyboard.on('keydown-F9', () => this.loadGame());

        // Spawn Boss (Debug)
        this.input.keyboard.on('keydown-K', () => this.spawnBoss());

        // Build Mode Keys
        this.input.keyboard.on('keydown-B', () => {
            if (this.buildingSystem) this.buildingSystem.toggleBuildMode();
        });

        this.input.keyboard.on('keydown-ONE', () => {
            if (this.buildingSystem && this.buildingSystem.isBuildMode) this.buildingSystem.selectBuilding('fence');
            else if (this.scene.get('UIScene')) this.scene.get('UIScene').selectSlot(0);
        });

        this.input.keyboard.on('keydown-TWO', () => {
            if (this.buildingSystem && this.buildingSystem.isBuildMode) this.buildingSystem.selectBuilding('wall');
            else if (this.scene.get('UIScene')) this.scene.get('UIScene').selectSlot(1);
        });

        this.input.keyboard.on('keydown-THREE', () => {
            if (this.buildingSystem && this.buildingSystem.isBuildMode) this.buildingSystem.selectBuilding('house');
            else if (this.scene.get('UIScene')) this.scene.get('UIScene').selectSlot(2);
        });

        // Soft Reset (F4)
        this.input.keyboard.on('keydown-F4', () => window.location.reload());

        // Mute Toggle (M key)
        this.input.keyboard.on('keydown-M', () => {
            if (this.soundManager) this.soundManager.toggleMute();
        });
    }

    update(time, delta) {
        if (this.player) this.player.update(delta);

        // Update Systems
        if (this.statsSystem) this.statsSystem.update(delta);
        if (this.lootSystem) this.lootSystem.update(delta);
        if (this.interactionSystem) this.interactionSystem.update(delta);
        if (this.farmingSystem) this.farmingSystem.update(delta);
        if (this.questSystem) this.questSystem.update(delta);
        if (this.multiplayerSystem) this.multiplayerSystem.update(delta);

        if (this.weatherSystem) {
            this.weatherSystem.update(delta);

            // Night Logic
            if (this.weatherSystem.isNight()) {
                const isHorde = this.weatherSystem.isHordeNight();
                const spawnInterval = isHorde ? 2000 : 10000;

                // Check for Horde Start Warning
                if (isHorde && !this.hordeWarningShown) {
                    this.showHordeWarning();
                    this.hordeWarningShown = true;
                }

                if (!this.nightSpawnTimer) this.nightSpawnTimer = 0;
                this.nightSpawnTimer += delta;

                if (this.nightSpawnTimer > spawnInterval) {
                    this.nightSpawnTimer = 0;
                    this.spawnNightZombie();
                    if (isHorde) {
                        this.spawnNightZombie();
                        this.spawnNightZombie();
                    }
                }
            } else {
                this.hordeWarningShown = false;
            }
        }

        // NPC Update
        for (const npc of this.npcs) {
            npc.update(delta);
        }

        // Parallax
        if (this.parallaxSystem && this.player) {
            const playerPos = this.player.getPosition();
            const screenPos = this.iso.toScreen(playerPos.x, playerPos.y);
            this.parallaxSystem.update(
                screenPos.x + this.terrainOffsetX,
                screenPos.y + this.terrainOffsetY
            );
        }

        // Terrain Culling
        if (this.terrainSystem) {
            this.terrainSystem.updateCulling(this.cameras.main);
        }

        // Clouds
        if (this.clouds) {
            for (const cloud of this.clouds) {
                cloud.sprite.x += cloud.speed * (delta / 1000);
                if (cloud.sprite.x > this.terrainOffsetX + 2000) {
                    cloud.sprite.x = this.terrainOffsetX - 2000;
                    cloud.sprite.y = Phaser.Math.Between(0, 1000);
                }
            }
        }

        // Debug Info
        if (this.player) {
            const playerPos = this.player.getPosition();
            const uiScene = this.scene.get('UIScene');
            if (uiScene && uiScene.debugText) {
                const activeCrops = this.terrainSystem && this.terrainSystem.cropsMap ? this.terrainSystem.cropsMap.size : 0;
                const dropsCount = this.lootSystem ? this.lootSystem.drops.length : 0;
                const conn = this.multiplayerSystem && this.multiplayerSystem.isConnected ? '🟢 Online' : '🔴 Offline';

                uiScene.debugText.setText(
                    `NovaFarma v0.6 [${conn}]\n` +
                    `[F5] Save | [F9] Load | [K] Boss\n` +
                    `Time: ${this.timeSystem ? this.timeSystem.gameTime.toFixed(1) : '?'}h\n` +
                    `Active Crops: ${activeCrops}\n` +
                    `Loot Drops: ${dropsCount}\n` +
                    `Player: (${playerPos.x}, ${playerPos.y})`
                );
            }
        }
    }

    spawnNightZombie() {
        if (!this.player || this.npcs.length > 50) return;

        const playerPos = this.player.getPosition();
        const angle = Math.random() * Math.PI * 2;
        const distance = Phaser.Math.Between(15, 25);

        const spawnX = Math.floor(playerPos.x + Math.cos(angle) * distance);
        const spawnY = Math.floor(playerPos.y + Math.sin(angle) * distance);

        if (spawnX < 0 || spawnX >= 100 || spawnY < 0 || spawnY >= 100) return;
        if (Phaser.Math.Distance.Between(spawnX, spawnY, 20, 20) < 15) return;

        const tile = this.terrainSystem.getTile(spawnX, spawnY);
        if (tile && tile.type !== 'water') {
            console.log(`🌑 Night Spawn: Zombie at ${spawnX},${spawnY}`);
            const zombie = new NPC(this, spawnX, spawnY, this.terrainOffsetX, this.terrainOffsetY, 'zombie');
            zombie.state = 'CHASE';
            this.npcs.push(zombie);
        }
    }

    showHordeWarning() {
        console.log('🩸 BLOOD MOON RISING!');
        if (this.soundManager) this.soundManager.playDeath();

        const width = this.cameras.main.width;
        const height = this.cameras.main.height;

        const text = this.add.text(width / 2, height / 3, 'THE HORDE IS APPROACHING...', {
            fontSize: '40px', fontFamily: 'Courier New', fill: '#ff0000', fontStyle: 'bold', stroke: '#000000', strokeThickness: 6
        }).setOrigin(0.5).setScrollFactor(0).setDepth(10000);

        this.tweens.add({
            targets: text, scale: 1.2, duration: 500, yoyo: true, repeat: 5,
            onComplete: () => {
                this.tweens.add({
                    targets: text, alpha: 0, duration: 2000,
                    onComplete: () => text.destroy()
                });
            }
        });
    }

    createClouds() {
        if (!this.textures.exists('cloud')) TextureGenerator.createCloudSprite(this, 'cloud');
        this.clouds = [];
        console.log('☁️ Creating parallax clouds...');
        for (let i = 0; i < 8; i++) {
            const x = Phaser.Math.Between(-1000, 3000);
            const y = Phaser.Math.Between(-500, 1500);
            const cloud = this.add.sprite(x, y, 'cloud');
            cloud.setAlpha(0.4).setScrollFactor(0.2).setDepth(2000).setScale(Phaser.Math.FloatBetween(2, 4));
            this.clouds.push({ sprite: cloud, speed: Phaser.Math.FloatBetween(10, 30) });
        }
    }

    spawnBoss() {
        if (!this.player) return;
        console.log('👑 SPANWING ZOMBIE KING!');
        const playerPos = this.player.getPosition();
        const spawnX = Math.floor(playerPos.x + 8);
        const spawnY = Math.floor(playerPos.y + 8);
        const boss = new Boss(this, spawnX, spawnY);
        boss.state = 'CHASE';
        this.npcs.push(boss);
        this.showHordeWarning();
        this.events.emit('show-floating-text', { x: this.player.x, y: this.player.y - 100, text: "THE KING HAS ARRIVED!", color: '#AA00FF' });
    }

    saveGame() {
        if (this.saveSystem) this.saveSystem.saveGame();
    }

    loadGame() {
        if (this.saveSystem) this.saveSystem.loadGame();
    }
}