class Boss extends NPC {
    constructor(scene, gridX, gridY) {
        super(scene, gridX, gridY, scene.terrainOffsetX, scene.terrainOffsetY, 'boss');
        this.maxHp = 500;
        this.hp = this.maxHp;
        this.moveSpeed = 70; // Slower than normal zombies

        // Cooldowns
        this.summonCooldown = 12000;
        this.smashCooldown = 6000;
        this.currentSkillTimer = 0;
    }

    createSprite() {
        super.createSprite();
        // Customize appearance
        this.sprite.setScale(2.0); // Big Boss
        this.sprite.setTint(0x6600cc); // Dark Purple

        // Add a crown or something? (Text)
        this.crown = this.scene.add.text(this.sprite.x, this.sprite.y - 80, '👑', { fontSize: '30px' });
        this.crown.setOrigin(0.5);
        this.crown.setDepth(this.sprite.depth + 100);
    }

    update(delta) {
        super.update(delta);

        // Update Crown position
        if (this.crown && this.sprite) {
            this.crown.setPosition(this.sprite.x, this.sprite.y - 80);
            this.crown.setDepth(this.sprite.depth + 100);
        }

        if (this.state === 'CHASE' || this.state === 'WANDER') {
            this.handleBossSkills(delta);
        }
    }

    handleBossSkills(delta) {
        if (!this.scene.player) return;

        this.currentSkillTimer += delta;

        const dist = Phaser.Math.Distance.Between(this.gridX, this.gridY, this.scene.player.gridX, this.scene.player.gridY);

        // Smash Attack (AoE close range)
        if (this.currentSkillTimer > this.smashCooldown && dist < 4) {
            this.smashAttack();
            this.currentSkillTimer = 0; // Reset timer partially? No, full reset for simpler logic
        }
        // Summon Minions (Long range or cooldown)
        else if (this.currentSkillTimer > this.summonCooldown) {
            this.summonMinions();
            this.currentSkillTimer = 5000; // Give back some time so he doesn't wait full CD for smash
        }
    }

    smashAttack() {
        console.log('💥 BOSS SMASH!');
        this.scene.cameras.main.shake(300, 0.01);

        // Visual Warning
        const warning = this.scene.add.circle(this.sprite.x, this.sprite.y, 150, 0xff0000, 0.4);
        warning.setScale(0);
        this.scene.tweens.add({
            targets: warning,
            scale: 1,
            alpha: 0,
            duration: 500,
            onComplete: () => {
                warning.destroy();
                // Damage Logic
                const playerPos = this.scene.player.getPosition();
                const d = Phaser.Math.Distance.Between(this.sprite.x, this.sprite.y, playerPos.x, playerPos.y); // Pixel distance
                if (d < 150) {
                    this.scene.player.takeDamage(30);
                    // Knockback
                    // todo
                }

                // Sound
                if (this.scene.soundManager) this.scene.soundManager.playDeath(); // Placeholder for big boom
            }
        });
    }

    summonMinions() {
        console.log('🧟🧟🧟 BOSS SUMMONS MINIONS!');

        for (let i = 0; i < 3; i++) {
            const angle = (Math.PI * 2 / 3) * i;
            const dist = 3;
            const sx = Math.floor(this.gridX + Math.cos(angle) * dist);
            const sy = Math.floor(this.gridY + Math.sin(angle) * dist);

            if (this.scene.terrainSystem.getTile(sx, sy)) {
                // Spawn normal zombie
                // We access GameScene's spawn method or create NPC directly
                const zombie = new NPC(this.scene, sx, sy, this.scene.terrainOffsetX, this.scene.terrainOffsetY, 'zombie');
                zombie.state = 'CHASE';
                this.scene.npcs.push(zombie);

                // Spawn Effect
                if (this.scene.particleEffects) {
                    const iso = new IsometricUtils(48, 24);
                    const pos = iso.toScreen(sx, sy);
                    this.scene.particleEffects.bloodSplash(pos.x + 300, pos.y + 100); // hardcoded offset fix maybe needed
                }
            }
        }
    }

    destroy() {
        if (this.crown) this.crown.destroy();
        super.destroy();

        // Boss Drops
        if (this.scene.lootSystem) {
            this.scene.lootSystem.spawnLoot(this.gridX, this.gridY, 'item_gold', 50);
            this.scene.lootSystem.spawnLoot(this.gridX, this.gridY, 'item_sword', 1); // Rare drop
        }

        // Boss Death Event?
        this.scene.events.emit('boss_killed');
    }
}