class HybridSkillSystem {
    constructor(scene) {
        this.scene = scene;

        this.level = 1;
        this.xp = 0;
        this.maxXp = 100;

        // Skills
        this.skills = {
            'translation': { level: 0, max: 5, name: 'Zombie Language', desc: 'Understand zombie groans.' },
            'strength': { level: 0, max: 5, name: 'Mutant Strength', desc: 'Deal more damage.' },
            'resilience': { level: 0, max: 5, name: 'Rot Resistance', desc: 'Less damage from poison/decay.' },
            'command': { level: 0, max: 3, name: 'Horde Command', desc: 'Control more zombie workers.' }
        };

        this.points = 0; // Available skill points
    }

    addXP(amount) {
        this.xp += amount;
        if (this.xp >= this.maxXp) {
            this.levelUp();
        }
        // UI Notification
        this.scene.events.emit('show-floating-text', {
            x: this.scene.player.sprite.x,
            y: this.scene.player.sprite.y - 50,
            text: `+${amount} Hybrid XP`,
            color: '#00FF00'
        });
    }

    levelUp() {
        this.xp -= this.maxXp;
        this.level++;
        this.maxXp = Math.floor(this.maxXp * 1.5);
        this.points++;
        console.log(`🧬 Hybrid Level Up! Level: ${this.level}, Points: ${this.points}`);

        this.scene.soundManager.playSuccess(); // Reuse success sound

        this.scene.events.emit('show-floating-text', {
            x: this.scene.player.sprite.x,
            y: this.scene.player.sprite.y - 80,
            text: `LEVEL UP! (${this.level})`,
            color: '#FFFF00'
        });
    }

    tryUpgradeSkill(skillId) {
        const skill = this.skills[skillId];
        if (!skill) return false;

        if (this.points > 0 && skill.level < skill.max) {
            this.points--;
            skill.level++;
            console.log(`🧬 Upgraded ${skill.name} to Lv ${skill.level}`);
            return true;
        }
        return false;
    }

    getSpeechTranslation(text) {
        const lvl = this.skills['translation'].level;
        if (lvl >= 5) return text; // Perfect translation

        // Obfuscate text based on level
        // Lv 0: 100% garbled
        // Lv 1: 80% garbled
        // ...
        const garbleChance = 1.0 - (lvl * 0.2);

        return text.split(' ').map(word => {
            if (Math.random() < garbleChance) {
                return this.garbleWord(word);
            }
            return word;
        }).join(' ');
    }

    garbleWord(word) {
        const sounds = ['hgh', 'arr', 'ghh', '...', 'bra', 'in', 'zZz'];
        return sounds[Math.floor(Math.random() * sounds.length)];
    }

    toJSON() {
        return {
            level: this.level,
            xp: this.xp,
            maxXp: this.maxXp,
            skills: this.skills,
            points: this.points
        };
    }

    load(data) {
        if (!data) return;
        this.level = data.level;
        this.xp = data.xp;
        this.maxXp = data.maxXp;
        this.points = data.points;
        // Merge skills to keep structure if definition changed
        for (const k in data.skills) {
            if (this.skills[k]) {
                this.skills[k].level = data.skills[k].level;
            }
        }
    }
}