// Providers Page Module

class ProvidersPage {
    constructor() {
        this.providers = [];
        this.init();
    }

    async init() {
        await this.loadProviders();
        this.setupEventListeners();
    }

    async loadProviders() {
        try {
            const data = await window.api.get('/providers');
            this.providers = data;
            this.renderProviders();
            this.renderStats();
        } catch (error) {
            console.error('Error loading providers:', error);
            window.authManager.showToast('Failed to load providers', 'error');
        }
    }

    renderProviders() {
        const container = document.getElementById('providers-list');
        if (!container) return;
        
        if (this.providers.length === 0) {
            container.innerHTML = '<div class="empty-state">No providers configured</div>';
            return;
        }

        container.innerHTML = `
            <div class="provider-cards-grid">
                ${this.providers.map(provider => this.renderProviderCard(provider)).join('')}
            </div>
        `;
    }

    renderProviderCard(provider) {
        const statusClass = provider.status === 'online' ? 'success' : 'warning';
        const modelCount = provider.models ? provider.models.length : 0;
        
        return `
            <div class="provider-card ${provider.status}">
                <div class="provider-card-header">
                    <div class="provider-info">
                        <h4 class="provider-name">${provider.name}</h4>
                        <span class="provider-id">${provider.id}</span>
                    </div>
                    <span class="status-badge ${statusClass}">
                        <i class="fas fa-circle"></i>
                        ${provider.status}
                    </span>
                </div>
                <div class="provider-card-body">
                    <div class="provider-meta">
                        <div class="meta-item">
                            <i class="fas fa-microchip"></i>
                            <span>${modelCount} Models Available</span>
                        </div>
                        <div class="meta-item">
                            <i class="fas fa-clock"></i>
                            <span>Last used: ${provider.last_used ? window.api.formatTimeAgo(provider.last_used) : 'Never'}</span>
                        </div>
                    </div>
                    <div class="model-tags">
                        ${(provider.models || []).slice(0, 5).map(m => `<span class="model-tag">${m}</span>`).join('')}
                        ${modelCount > 5 ? `<span class="model-tag more">+${modelCount - 5} more</span>` : ''}
                    </div>
                </div>
                <div class="provider-card-footer">
                    <button class="btn btn-secondary btn-sm" onclick="window.providersPage.testProvider('${provider.id}')">
                        <i class="fas fa-vial"></i> Test
                    </button>
                    <button class="btn btn-primary btn-sm" onclick="window.providersPage.configureProvider('${provider.id}')">
                        <i class="fas fa-cog"></i> Config
                    </button>
                </div>
            </div>
        `;
    }

    renderStats() {
        const container = document.getElementById('provider-stats');
        if (!container) return;
        
        const onlineCount = this.providers.filter(p => p.status === 'online').length;
        const totalModels = this.providers.reduce((sum, p) => sum + (p.models ? p.models.length : 0), 0);
        
        container.innerHTML = `
            <div class="stat-card">
                <div class="stat-content">
                    <div class="stat-value">${this.providers.length}</div>
                    <div class="stat-label">Total Providers</div>
                </div>
            </div>
            <div class="stat-card">
                <div class="stat-content">
                    <div class="stat-value">${onlineCount}</div>
                    <div class="stat-label">Online Status</div>
                </div>
            </div>
            <div class="stat-card">
                <div class="stat-content">
                    <div class="stat-value">${totalModels}</div>
                    <div class="stat-label">Total Models</div>
                </div>
            </div>
        `;
    }

    async testProvider(id) {
        window.authManager.showToast(`Testing connection to ${id}...`, 'info');
        try {
            await window.api.post(`/providers/${id}/test`, {});
            window.authManager.showToast(`${id} connection successful!`, 'success');
            this.loadProviders();
        } catch (error) {
            window.authManager.showToast(`${id} test failed: ${error.message}`, 'error');
        }
    }

    configureProvider(id) {
        window.authManager.showToast('Provider configuration via UI not yet implemented', 'info');
    }

    setupEventListeners() {
        const testAllBtn = document.getElementById('test-all-providers');
        if (testAllBtn) {
            testAllBtn.onclick = () => {
                this.providers.forEach(p => this.testProvider(p.id));
            };
        }
    }
}

window.initProviders = async () => {
    window.providersPage = new ProvidersPage();
};