/**
 * Preference Management System for The Academy
 * Handles user preferences across 8 categories, checkpoint modals, and preference-based filtering
 */

class PreferenceManager {
    constructor() {
        this.initializePreferences();
    }

    /**
     * Initialize preferences structure in gameData if it doesn't exist
     */
    initializePreferences() {
        if (!window.gameData.academyPreferences) {
            window.gameData.academyPreferences = {
                version: 1,
                lastUpdated: new Date().toISOString(),
                checkpointHistory: [], // Track when preferences were updated
                
                // Category 1: Content Themes (multi-select)
                contentThemes: {
                    dominance: false,
                    submission: false,
                    humiliation: false,
                    worship: false,
                    edging: false,
                    denial: false,
                    cei: false,
                    sissy: false,
                    bbc: false,
                    feet: false,
                    femdom: false,
                    maledom: false,
                    lesbian: false,
                    gay: false,
                    trans: false,
                    hentai: false,
                    pov: false,
                    joi: false,
                    gooning: false,
                    mindbreak: false
                },
                
                // Category 2: Visual Preferences (multi-select)
                visualPreferences: {
                    solo: false,
                    couples: false,
                    group: false,
                    amateur: false,
                    professional: false,
                    animated: false,
                    realPorn: false,
                    closeups: false,
                    fullBody: false,
                    pov: false,
                    compilation: false,
                    pmv: false,
                    slowmo: false,
                    artistic: false,
                    raw: false
                },
                
                // Category 3: Intensity Levels (slider 1-5)
                intensity: {
                    visualIntensity: 3,      // How explicit/hardcore
                    paceIntensity: 3,        // How fast/aggressive
                    mentalIntensity: 3,      // How mind-breaking
                    audioIntensity: 3,       // How loud/overwhelming
                    taskDifficulty: 3        // How challenging
                },
                
                // Category 4: Caption/Text Tone (multi-select)
                captionTone: {
                    encouraging: false,
                    mocking: false,
                    commanding: false,
                    seductive: false,
                    degrading: false,
                    playful: false,
                    serious: false,
                    casual: false,
                    formal: false,
                    extreme: false
                },
                
                // Category 5: Audio Preferences (multi-select)
                audioPreferences: {
                    femaleVoice: false,
                    maleVoice: false,
                    moaning: false,
                    talking: false,
                    music: false,
                    ambience: false,
                    asmr: false,
                    binaural: false,
                    silence: false,
                    soundEffects: false
                },
                
                // Category 6: Session Duration (single-select)
                sessionDuration: {
                    preferred: 'medium',      // 'short' (5-15m), 'medium' (15-30m), 'long' (30-60m), 'marathon' (60m+)
                    allowFlexibility: true    // Can go shorter/longer based on performance
                },
                
                // Category 7: Feature Preferences (multi-select - unlocks as features discovered)
                featurePreferences: {
                    webcam: null,             // null = not yet discovered, true/false after discovery
                    tts: null,
                    interactiveTasks: null,
                    edgingTimer: null,
                    denialLocks: null,
                    punishments: null,
                    rewards: null,
                    progressTracking: null,
                    mediaLibrary: null,
                    customPlaylists: null
                },
                
                // Category 8: Boundaries (multi-select for hard limits)
                boundaries: {
                    hardLimits: [],           // User-specified content to NEVER show
                    softLimits: [],           // User-specified content to show sparingly
                    triggerWarnings: [],      // User wants warnings before certain content
                    requireConfirmation: []   // User wants to confirm before certain tasks
                }
            };
            
            this.savePreferences();
        }
    }

    /**
     * Get all current preferences
     * @returns {Object} Full preferences object
     */
    getPreferences() {
        return window.gameData.academyPreferences;
    }

    /**
     * Get preferences for a specific category
     * @param {string} category - Category name (contentThemes, visualPreferences, etc.)
     * @returns {Object} Category preferences
     */
    getCategoryPreferences(category) {
        const prefs = this.getPreferences();
        return prefs[category] || null;
    }

    /**
     * Update preferences for a specific category
     * @param {string} category - Category name
     * @param {Object} updates - Object with preference updates
     * @param {number} checkpointLevel - Level number where update occurred (optional)
     * @returns {boolean} Success status
     */
    updateCategoryPreferences(category, updates, checkpointLevel = null) {
        const prefs = this.getPreferences();
        
        if (!prefs[category]) {
            console.error(`Invalid category: ${category}`);
            return false;
        }

        // Update the category
        Object.assign(prefs[category], updates);
        
        // Update metadata
        prefs.lastUpdated = new Date().toISOString();
        
        // Track checkpoint history
        if (checkpointLevel !== null) {
            prefs.checkpointHistory.push({
                level: checkpointLevel,
                category: category,
                timestamp: new Date().toISOString(),
                changes: updates
            });
        }
        
        this.savePreferences();
        return true;
    }

    /**
     * Bulk update multiple categories at once (used at checkpoints)
     * @param {Object} categoryUpdates - Object with category names as keys, updates as values
     * @param {number} checkpointLevel - Level number where update occurred
     * @returns {boolean} Success status
     */
    updateMultipleCategories(categoryUpdates, checkpointLevel) {
        const prefs = this.getPreferences();
        
        for (const [category, updates] of Object.entries(categoryUpdates)) {
            if (!prefs[category]) {
                console.error(`Invalid category: ${category}`);
                continue;
            }
            
            Object.assign(prefs[category], updates);
        }
        
        // Update metadata
        prefs.lastUpdated = new Date().toISOString();
        
        // Track checkpoint history
        prefs.checkpointHistory.push({
            level: checkpointLevel,
            categories: Object.keys(categoryUpdates),
            timestamp: new Date().toISOString(),
            changes: categoryUpdates
        });
        
        return this.savePreferences();
    }

    /**
     * Get content filter based on current preferences
     * Used to filter media library for level content selection
     * @returns {Object} Filter configuration
     */
    getContentFilter() {
        const prefs = this.getPreferences();
        
        return {
            // Theme filters
            themes: this.getActivePreferences(prefs.contentThemes),
            
            // Visual filters
            visuals: this.getActivePreferences(prefs.visualPreferences),
            
            // Audio filters
            audio: this.getActivePreferences(prefs.audioPreferences),
            
            // Tone filters
            tones: this.getActivePreferences(prefs.captionTone),
            
            // Intensity filters
            intensity: {
                visual: prefs.intensity.visualIntensity,
                pace: prefs.intensity.paceIntensity,
                mental: prefs.intensity.mentalIntensity,
                audio: prefs.intensity.audioIntensity,
                difficulty: prefs.intensity.taskDifficulty
            },
            
            // Duration preference
            duration: prefs.sessionDuration.preferred,
            allowFlexibility: prefs.sessionDuration.allowFlexibility,
            
            // Boundaries (exclude these)
            exclude: {
                hardLimits: prefs.boundaries.hardLimits,
                softLimits: prefs.boundaries.softLimits
            },
            
            // Warnings needed
            warnings: prefs.boundaries.triggerWarnings,
            
            // Confirmation required
            confirmations: prefs.boundaries.requireConfirmation
        };
    }

    /**
     * Get list of active (true) preferences from a category object
     * @param {Object} categoryPrefs - Category preferences object
     * @returns {Array<string>} Array of active preference names
     */
    getActivePreferences(categoryPrefs) {
        return Object.entries(categoryPrefs)
            .filter(([key, value]) => value === true)
            .map(([key]) => key);
    }

    /**
     * Check if a checkpoint level should show preference modal
     * @param {number} levelNum - Level number
     * @returns {boolean} True if checkpoint level
     */
    isCheckpointLevel(levelNum) {
        return [1, 5, 10, 15, 20, 25].includes(levelNum);
    }

    /**
     * Get checkpoint modal configuration for a specific level
     * @param {number} levelNum - Level number
     * @returns {Object} Modal configuration with categories to show
     */
    getCheckpointModalConfig(levelNum) {
        const configs = {
            1: {
                title: "Welcome to The Academy",
                description: "Let's set up your initial preferences. You can always change these later at checkpoints (L5, 10, 15, 20, 25).",
                categories: ['contentThemes', 'visualPreferences', 'sessionDuration'],
                isInitial: true
            },
            5: {
                title: "Checkpoint: Refine Your Experience",
                description: "You've completed the Foundation arc. Let's refine your preferences based on what you've experienced.",
                categories: ['contentThemes', 'visualPreferences', 'intensity', 'captionTone'],
                isInitial: false
            },
            10: {
                title: "Checkpoint: Feature Discovery Complete",
                description: "Now that you've explored all features, let's optimize your sessions.",
                categories: ['featurePreferences', 'audioPreferences', 'intensity', 'sessionDuration'],
                isInitial: false
            },
            15: {
                title: "Checkpoint: Deepening Your Training",
                description: "You're halfway through. Time to deepen your preferences.",
                categories: ['contentThemes', 'captionTone', 'intensity', 'boundaries'],
                isInitial: false
            },
            20: {
                title: "Checkpoint: Advanced Personalization",
                description: "You're in the Mastery arc. Let's perfect your experience.",
                categories: ['visualPreferences', 'audioPreferences', 'featurePreferences', 'intensity'],
                isInitial: false
            },
            25: {
                title: "Checkpoint: Final Refinement",
                description: "Almost at graduation. Final chance to perfect your preferences.",
                categories: ['contentThemes', 'visualPreferences', 'intensity', 'captionTone', 'boundaries'],
                isInitial: false
            }
        };
        
        return configs[levelNum] || null;
    }

    /**
     * Get checkpoint history
     * @returns {Array} Array of checkpoint update records
     */
    getCheckpointHistory() {
        return this.getPreferences().checkpointHistory || [];
    }

    /**
     * Mark a feature as discovered (unlocks it in featurePreferences)
     * @param {string} featureName - Feature name (webcam, tts, etc.)
     * @returns {boolean} Success status
     */
    discoverFeature(featureName) {
        const prefs = this.getPreferences();
        
        if (!prefs.featurePreferences.hasOwnProperty(featureName)) {
            console.error(`Invalid feature: ${featureName}`);
            return false;
        }
        
        // Set to false initially (discovered but not enabled)
        // User will choose at next checkpoint
        if (prefs.featurePreferences[featureName] === null) {
            prefs.featurePreferences[featureName] = false;
            prefs.lastUpdated = new Date().toISOString();
            this.savePreferences();
        }
        
        return true;
    }

    /**
     * Get list of discovered features
     * @returns {Array<string>} Array of discovered feature names
     */
    getDiscoveredFeatures() {
        const prefs = this.getPreferences();
        return Object.entries(prefs.featurePreferences)
            .filter(([key, value]) => value !== null)
            .map(([key]) => key);
    }

    /**
     * Get list of enabled features
     * @returns {Array<string>} Array of enabled feature names
     */
    getEnabledFeatures() {
        const prefs = this.getPreferences();
        return Object.entries(prefs.featurePreferences)
            .filter(([key, value]) => value === true)
            .map(([key]) => key);
    }

    /**
     * Add a hard limit (content to never show)
     * @param {string} limitTag - Tag to add to hard limits
     * @returns {boolean} Success status
     */
    addHardLimit(limitTag) {
        const prefs = this.getPreferences();
        if (!prefs.boundaries.hardLimits.includes(limitTag)) {
            prefs.boundaries.hardLimits.push(limitTag);
            prefs.lastUpdated = new Date().toISOString();
            this.savePreferences();
        }
        return true;
    }

    /**
     * Remove a hard limit
     * @param {string} limitTag - Tag to remove from hard limits
     * @returns {boolean} Success status
     */
    removeHardLimit(limitTag) {
        const prefs = this.getPreferences();
        const index = prefs.boundaries.hardLimits.indexOf(limitTag);
        if (index > -1) {
            prefs.boundaries.hardLimits.splice(index, 1);
            prefs.lastUpdated = new Date().toISOString();
            this.savePreferences();
        }
        return true;
    }

    /**
     * Get statistics about preferences
     * @returns {Object} Stats object
     */
    getPreferenceStats() {
        const prefs = this.getPreferences();
        
        return {
            totalCheckpoints: prefs.checkpointHistory.length,
            lastUpdated: prefs.lastUpdated,
            activeThemes: this.getActivePreferences(prefs.contentThemes).length,
            activeVisuals: this.getActivePreferences(prefs.visualPreferences).length,
            activeAudio: this.getActivePreferences(prefs.audioPreferences).length,
            activeTones: this.getActivePreferences(prefs.captionTone).length,
            discoveredFeatures: this.getDiscoveredFeatures().length,
            enabledFeatures: this.getEnabledFeatures().length,
            averageIntensity: this.getAverageIntensity(),
            hardLimitsSet: prefs.boundaries.hardLimits.length,
            softLimitsSet: prefs.boundaries.softLimits.length,
            preferredDuration: prefs.sessionDuration.preferred
        };
    }

    /**
     * Calculate average intensity across all intensity categories
     * @returns {number} Average intensity (1-5)
     */
    getAverageIntensity() {
        const prefs = this.getPreferences();
        const intensities = Object.values(prefs.intensity);
        const sum = intensities.reduce((acc, val) => acc + val, 0);
        return (sum / intensities.length).toFixed(1);
    }

    /**
     * Reset all preferences to defaults
     * @returns {boolean} Success status
     */
    resetPreferences() {
        delete window.gameData.academyPreferences;
        this.initializePreferences();
        return true;
    }

    /**
     * Save preferences to localStorage
     */
    savePreferences() {
        try {
            console.log('💾 preferenceManager.savePreferences() - completedLevels:', window.gameData.academyProgress?.completedLevels);
            console.trace('Stack trace:');
            localStorage.setItem('webGame-data', JSON.stringify(window.gameData));
            return true;
        } catch (error) {
            console.error('Failed to save preferences:', error);
            if (error.name === 'QuotaExceededError') {
                alert('⚠️ Storage full! Preferences could not be saved.\n\nThe app has cleared old data. Please try again.');
            }
            return false;
        }
    }
}

// Create global instance
window.preferenceManager = new PreferenceManager();