'use strict';

const AppError = require('./AppError');

class NotFoundError extends AppError {
    constructor(message = 'Resource not found') {
        super(message, 404, 'NOT_FOUND');
    }
}

class ValidationError extends AppError {
    constructor(message = 'Validation failed') {
        super(message, 400, 'VALIDATION_ERROR');
    }
}

class ConflictError extends AppError {
    constructor(message = 'Resource already exists') {
        super(message, 409, 'CONFLICT');
    }
}

class UnauthorizedError extends AppError {
    constructor(message = 'Unauthorized') {
        super(message, 401, 'UNAUTHORIZED');
    }
}

class ForbiddenError extends AppError {
    constructor(message = 'Forbidden') {
        super(message, 403, 'FORBIDDEN');
    }
}

module.exports = {
    AppError,
    NotFoundError,
    ValidationError,
    ConflictError,
    UnauthorizedError,
    ForbiddenError,
};