/**
 * Application Configuration
 * Contains all configuration constants for the ONNX Model Explorer
 */

const CONFIG = {
    // Application Info
    APP_NAME: 'ONNX Model Explorer',
    APP_VERSION: '1.0.0',
    
    // Paths
    MODELS_PATH: './models/',
    MODELS_CONFIG_FILE: './models/models.json',
    
    // CDN URLs
    CDN: {
        PROTOBUF_JS: 'https://cdn.jsdelivr.net/npm/protobufjs@7/dist/protobuf.min.js',
        CYTOSCAPE_JS: 'https://cdn.jsdelivr.net/npm/cytoscape@latest/dist/cytoscape.min.js',
        BOOTSTRAP_CSS: 'https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css',
        BOOTSTRAP_JS: 'https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js',
        FONT_AWESOME: 'https://cdn.jsdelivr.net/npm/@fortawesome/fontawesome-free@6.4.0/css/all.min.css'
    },
    
    // File Configuration
    FILE: {
        ALLOWED_EXTENSIONS: ['.onnx', '.safetensors', '.tflite', '.h5', '.keras', '.pb', '.mlmodel', '.caffemodel', '.weights', '.pdmodel', '.params'],
        MAX_FILE_SIZE: Infinity, // No file size limit
        UPLOAD_TIMEOUT: 30000 // 30 seconds
    },
    
    // UI Configuration
    UI: {
        MODEL_LIST_MAX_HEIGHT: 600,
        GRAPH_CONTAINER_HEIGHT: 500,
        SEARCH_DEBOUNCE_DELAY: 300,
        ERROR_DISPLAY_DURATION: 5000, // 5 seconds
        LOADING_SPINNER_DELAY: 500 // 0.5 seconds
    },
    
    // Graph Configuration
    GRAPH: {
        DEFAULT_ZOOM: 1,
        MIN_ZOOM: 0.1,
        MAX_ZOOM: 5,
        ZOOM_STEP: 0.1,
        NODE_HIGHLIGHT_COLOR: '#FFD700',
        NODE_DEFAULT_COLOR: '#87CEEB',
        EDGE_DEFAULT_COLOR: '#999'
    },
    
    // Performance Configuration
    PERFORMANCE: {
        LAZY_LOAD_THRESHOLD: 1000, // Load graphs with > 1000 nodes lazily
        CACHE_SIZE: 10, // Number of models to cache
        BATCH_RENDER_SIZE: 100 // Number of nodes to render per batch
    },
    
    // Error Messages
    ERRORS: {
        FILE_NOT_FOUND: 'File not found. Please check the file path.',
        INVALID_FILE_FORMAT: 'Invalid file format. Please upload a valid ONNX (.onnx), SafeTensors (.safetensors), TFLite (.tflite), or other supported model file.',
        PARSE_ERROR: 'Failed to parse the model. The file may be corrupted.',
        LIBRARY_LOAD_ERROR: 'Failed to load required libraries. Please check your internet connection.',
        UPLOAD_ERROR: 'Failed to upload the file. Please try again.',
        EXPORT_ERROR: 'Failed to export the model information.',
        UNKNOWN_ERROR: 'An unknown error occurred. Please try again.',
        NO_MODELS_AVAILABLE: 'No models available. Please upload an ONNX file.',
        MODEL_LOAD_TIMEOUT: 'Model loading timed out. Please try again.',
        INVALID_MODEL_DATA: 'Invalid model data. The model may be corrupted.'
    },
    
    // Success Messages
    SUCCESS: {
        MODEL_LOADED: 'Model loaded successfully.',
        FILE_UPLOADED: 'File uploaded successfully.',
        MODEL_EXPORTED: 'Model exported successfully.',
        SEARCH_COMPLETED: 'Search completed.'
    },
    
    // Info Messages
    INFO: {
        LOADING_MODEL: 'Loading model...',
        PARSING_MODEL: 'Parsing model...',
        RENDERING_GRAPH: 'Rendering graph...',
        SEARCHING: 'Searching...'
    },
    
    // Data Type Mapping
    DATA_TYPES: {
        1: 'FLOAT',
        2: 'UINT8',
        3: 'INT8',
        4: 'UINT16',
        5: 'INT16',
        6: 'INT32',
        7: 'INT64',
        8: 'STRING',
        9: 'BOOL',
        10: 'FLOAT16',
        11: 'DOUBLE',
        12: 'UINT32',
        13: 'UINT64',
        14: 'COMPLEX64',
        15: 'COMPLEX128',
        16: 'BFLOAT16'
    },
    
    // Local Storage Keys
    STORAGE: {
        SELECTED_MODEL: 'onnx_explorer_selected_model',
        RECENT_MODELS: 'onnx_explorer_recent_models',
        USER_PREFERENCES: 'onnx_explorer_preferences',
        CACHE_PREFIX: 'onnx_explorer_cache_'
    },
    
    // Event Names
    EVENTS: {
        MODEL_LOADED: 'model:loaded',
        MODEL_SELECTED: 'model:selected',
        NODE_SELECTED: 'node:selected',
        SEARCH_UPDATED: 'search:updated',
        ERROR_OCCURRED: 'error:occurred',
        EXPORT_REQUESTED: 'export:requested',
        COMPARISON_STARTED: 'comparison:started',
        COMPARISON_ENDED: 'comparison:ended',
        FILE_UPLOADED: 'file:uploaded',
        GRAPH_RENDERED: 'graph:rendered'
    },
    
    // Logging Configuration
    LOGGING: {
        ENABLED: true,
        LEVEL: 'info', // 'debug', 'info', 'warn', 'error'
        CONSOLE_OUTPUT: true
    }
};

// Freeze the config object to prevent modifications
Object.freeze(CONFIG);