config.js

// Configuration for DSA Hints Coach
class Config {
    constructor() {
        this.apiKey = null;
        // Use the correct Gemini model - gemini-1.5-flash is the current stable model
        this.apiUrl = 'https://generativelanguage.googleapis.com/v1beta/models/gemini-1.5-flash:generateContent';
        this.init();
    }

    async init() {
        await this.loadApiKey();
    }

    async loadApiKey() {
        try {
            // First try to load from Chrome storage (for user-provided keys)
            if (chrome.storage && chrome.storage.sync) {
                const result = await chrome.storage.sync.get(['geminiApiKey']);
                if (result.geminiApiKey) {
                    this.apiKey = result.geminiApiKey;
                    return;
                }
            }

            // Fallback: try to load from environment variable (for development)
            // Note: In Chrome extensions, we can't directly access .env files
            // This is mainly for development purposes
            if (typeof process !== 'undefined' && process.env && process.env.GEMINI_API_KEY) {
                this.apiKey = process.env.GEMINI_API_KEY;
                return;
            }

            // If no API key found, return null
            this.apiKey = null;
        } catch (error) {
            console.error('Error loading API key:', error);
            this.apiKey = null;
        }
    }

    async saveApiKey(apiKey) {
        try {
            if (chrome.storage && chrome.storage.sync) {
                await chrome.storage.sync.set({ geminiApiKey: apiKey });
            }
            this.apiKey = apiKey;
            return true;
        } catch (error) {
            console.error('Error saving API key:', error);
            return false;
        }
    }

    getApiKey() {
        return this.apiKey;
    }

    getApiUrl() {
        return this.apiUrl;
    }

    hasValidApiKey() {
        return this.apiKey && this.apiKey.trim().length > 0;
    }
}

// Export for use in other files
if (typeof module !== 'undefined' && module.exports) {
    module.exports = Config;
}