// ============================================
// SYSTÈME DE VALIDATION DE LICENCE - VERSION 2.0
// Avec support fichier .lic
// ============================================

const LICENSE_API_URL = window.location.protocol + '//' + window.location.hostname + ':9999';

// État global de la licence
let currentLicense = null;
let currentHostname = null;

// ============================================
// INITIALISATION
// ============================================

async function initializeLicense() {
    console.log("Initializing license system v2.0...");
    
    try {
        // Récupérer le statut de la licence depuis le serveur
        const response = await fetch(`${LICENSE_API_URL}/license/status`);
        const data = await response.json();
        
        console.log("License status:", data);
        
        currentHostname = data.hostname;
        
        if (data.status === 'valid' && data.license) {
            // Licence valide
            currentLicense = data.license;
            displayLicenseInfo(data.license);
            hideLicenseModal();
        } else {
            // Pas de licence ou licence invalide
            showLicenseModal(data.error, data.error_code, data.hostname);
        }
    } catch (error) {
        console.error("Error checking license:", error);
        // En cas d'erreur réseau, afficher le modal
        showLicenseModal("Impossible de vérifier la licence. Le serveur est-il démarré?", "CONNECTION_ERROR");
    }
}

// ============================================
// AFFICHAGE DU BADGE DE LICENCE
// ============================================

function displayLicenseInfo(license) {
    console.log("Displaying license info:", license);
    
    const container = document.getElementById('license-badge-container');
    if (!container) {
        console.error("license-badge-container not found");
        return;
    }
    
    // Supprimer l'ancien badge s'il existe
    const oldBadge = document.getElementById('license-badge');
    if (oldBadge) oldBadge.remove();
    
    // Créer le badge
    const badge = document.createElement('div');
    badge.id = 'license-badge';
    
    // Déterminer le style selon le type et les jours restants
    let badgeStyle = '';
    let badgeText = '';
    let badgeIcon = '✓';
    
    const daysRemaining = license.days_remaining || 0;
    const licenseType = license.type_name || license.type || 'Unknown';
    
    if (daysRemaining <= 0) {
        // Expirée
        badgeStyle = 'background: linear-gradient(135deg, #f44336 0%, #da190b 100%);';
        badgeText = '⚠ Licence expirée';
        badgeIcon = '⚠';
    } else if (daysRemaining <= 7) {
        // Expire bientôt
        badgeStyle = 'background: linear-gradient(135deg, #ff9800 0%, #f57c00 100%);';
        badgeText = `⚠ ${licenseType} - ${daysRemaining}j restants`;
        badgeIcon = '⚠';
    } else if (license.type === 'trial') {
        // Essai
        badgeStyle = 'background: linear-gradient(135deg, #9c27b0 0%, #7b1fa2 100%);';
        badgeText = `⏱ Essai - ${daysRemaining}j restants`;
        badgeIcon = '⏱';
    } else {
        // Licence normale valide
        badgeStyle = 'background: linear-gradient(135deg, #4caf50 0%, #2e7d32 100%);';
        badgeText = `✓ ${licenseType}`;
        badgeIcon = '✓';
    }
    
    badge.style.cssText = `
        ${badgeStyle}
        color: white;
        padding: 10px 16px;
        border-radius: 8px;
        font-size: 12px;
        font-weight: 600;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        cursor: pointer;
        transition: all 0.3s ease;
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        text-align: center;
        display: flex;
        align-items: center;
        gap: 8px;
    `;
    
    badge.innerHTML = `
        <span style="font-size: 14px;">${badgeIcon}</span>
        <span>${badgeText}</span>
    `;
    
    // Click pour voir les détails
    badge.onclick = function() {
        showLicenseDetails(license);
    };
    
    // Hover effect
    badge.addEventListener('mouseenter', function() {
        this.style.transform = 'translateY(-2px)';
        this.style.boxShadow = '0 6px 20px rgba(0, 0, 0, 0.3)';
    });
    
    badge.addEventListener('mouseleave', function() {
        this.style.transform = 'translateY(0)';
        this.style.boxShadow = '0 4px 15px rgba(0, 0, 0, 0.2)';
    });
    
    container.appendChild(badge);
}

// ============================================
// MODAL DE DÉTAILS DE LICENCE
// ============================================

function showLicenseDetails(license) {
    const modal = document.createElement('div');
    modal.id = 'license-details-modal';
    modal.style.cssText = `
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.7);
        display: flex;
        align-items: center;
        justify-content: center;
        z-index: 10000;
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    `;
    
    const features = (license.features || []).map(f => `<span style="background: #e3f2fd; color: #1565c0; padding: 4px 8px; border-radius: 4px; font-size: 11px; margin: 2px;">${f}</span>`).join('');
    
    const limits = license.limits || {};
    const maxApps = limits.max_apps === -1 ? 'Illimité' : limits.max_apps;
    const maxPushes = limits.max_pushes_per_day === -1 ? 'Illimité' : limits.max_pushes_per_day + '/jour';
    
    modal.innerHTML = `
        <div style="background: white; border-radius: 16px; padding: 30px; max-width: 500px; width: 90%; box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);">
            <div style="display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px;">
                <h2 style="margin: 0; color: #333;">📋 Détails de la licence</h2>
                <button onclick="this.closest('#license-details-modal').remove()" style="background: none; border: none; font-size: 24px; cursor: pointer; color: #999;">&times;</button>
            </div>
            
            <div style="background: #f5f5f5; padding: 15px; border-radius: 8px; margin-bottom: 15px;">
                <div style="display: grid; grid-template-columns: 1fr 1fr; gap: 10px;">
                    <div>
                        <div style="color: #666; font-size: 11px; text-transform: uppercase;">Type</div>
                        <div style="font-weight: 600; color: #333;">${license.type_name || license.type}</div>
                    </div>
                    <div>
                        <div style="color: #666; font-size: 11px; text-transform: uppercase;">ID</div>
                        <div style="font-weight: 600; color: #333; font-family: monospace;">${license.license_id}</div>
                    </div>
                    <div>
                        <div style="color: #666; font-size: 11px; text-transform: uppercase;">Expire</div>
                        <div style="font-weight: 600; color: #333;">${license.expires}</div>
                    </div>
                    <div>
                        <div style="color: #666; font-size: 11px; text-transform: uppercase;">Jours restants</div>
                        <div style="font-weight: 600; color: ${license.days_remaining <= 7 ? '#f44336' : '#4caf50'};">${license.days_remaining}</div>
                    </div>
                </div>
            </div>
            
            <div style="margin-bottom: 15px;">
                <div style="color: #666; font-size: 11px; text-transform: uppercase; margin-bottom: 5px;">Client</div>
                <div style="color: #333;">${license.customer?.name || 'N/A'} (${license.customer?.email || 'N/A'})</div>
            </div>
            
            <div style="margin-bottom: 15px;">
                <div style="color: #666; font-size: 11px; text-transform: uppercase; margin-bottom: 5px;">Hostname</div>
                <div style="color: #333; font-family: monospace;">${license.hostname || currentHostname}</div>
            </div>
            
            <div style="margin-bottom: 15px;">
                <div style="color: #666; font-size: 11px; text-transform: uppercase; margin-bottom: 5px;">Limites</div>
                <div style="color: #333;">Apps: <strong>${maxApps}</strong> | Pushes: <strong>${maxPushes}</strong></div>
            </div>
            
            <div style="margin-bottom: 20px;">
                <div style="color: #666; font-size: 11px; text-transform: uppercase; margin-bottom: 8px;">Fonctionnalités</div>
                <div style="display: flex; flex-wrap: wrap; gap: 4px;">${features || '<span style="color: #999;">Aucune</span>'}</div>
            </div>
            
            <div style="display: flex; gap: 10px;">
                <button onclick="showLicenseModal(null, null, '${currentHostname}')" style="
                    flex: 1;
                    padding: 10px;
                    background: #667eea;
                    color: white;
                    border: none;
                    border-radius: 6px;
                    cursor: pointer;
                    font-weight: 600;
                ">🔄 Changer de licence</button>
                <button onclick="this.closest('#license-details-modal').remove()" style="
                    flex: 1;
                    padding: 10px;
                    background: #f5f5f5;
                    color: #333;
                    border: none;
                    border-radius: 6px;
                    cursor: pointer;
                    font-weight: 600;
                ">Fermer</button>
            </div>
        </div>
    `;
    
    document.body.appendChild(modal);
}

// ============================================
// MODAL D'UPLOAD DE LICENCE
// ============================================

function showLicenseModal(error = null, errorCode = null, hostname = null) {
    console.log("Showing license modal", { error, errorCode, hostname });
    
    // Supprimer l'ancien modal s'il existe
    hideLicenseModal();
    const detailsModal = document.getElementById('license-details-modal');
    if (detailsModal) detailsModal.remove();
    
    const modal = document.createElement('div');
    modal.id = 'license-modal';
    modal.style.cssText = `
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.7);
        display: flex;
        align-items: center;
        justify-content: center;
        z-index: 10000;
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    `;
    
    // Message d'erreur si présent
    let errorHtml = '';
    if (error) {
        let errorStyle = 'background: #ffebee; color: #c62828; border-left: 4px solid #f44336;';
        if (errorCode === 'NO_LICENSE') {
            errorStyle = 'background: #fff3e0; color: #e65100; border-left: 4px solid #ff9800;';
        }
        errorHtml = `
            <div style="${errorStyle} padding: 12px; border-radius: 4px; margin-bottom: 20px; font-size: 13px;">
                ${error}
            </div>
        `;
    }
    
    modal.innerHTML = `
        <div style="background: white; border-radius: 16px; padding: 40px; max-width: 550px; width: 90%; box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);">
            <div style="text-align: center; margin-bottom: 25px;">
                <h1 style="font-size: 28px; margin: 0 0 8px 0; color: #333;">🔐 Git Pusher</h1>
                <p style="color: #666; margin: 0; font-size: 14px;">Activation de licence requise</p>
            </div>
            
            ${errorHtml}
            
            <div style="background: #e8f5e9; padding: 15px; border-radius: 8px; margin-bottom: 20px; border-left: 4px solid #4caf50;">
                <p style="margin: 0; color: #2e7d32; font-size: 13px;">
                    <strong>📋 Hostname Splunk:</strong><br>
                    <code style="background: white; padding: 4px 8px; border-radius: 4px; font-size: 14px; display: inline-block; margin-top: 5px;">${hostname || 'Chargement...'}</code>
                </p>
                <p style="margin: 10px 0 0 0; color: #558b2f; font-size: 11px;">
                    Communiquez ce hostname pour obtenir votre licence.
                </p>
            </div>
            
            <div style="margin-bottom: 20px;">
                <label style="display: block; font-weight: 600; color: #333; margin-bottom: 10px;">
                    📄 Fichier de licence (.lic)
                </label>
                
                <div id="license-dropzone" style="
                    border: 2px dashed #ccc;
                    border-radius: 8px;
                    padding: 30px;
                    text-align: center;
                    cursor: pointer;
                    transition: all 0.3s ease;
                    background: #fafafa;
                " ondragover="handleDragOver(event)" ondragleave="handleDragLeave(event)" ondrop="handleDrop(event)" onclick="document.getElementById('license-file-input').click()">
                    <div style="font-size: 40px; margin-bottom: 10px;">📁</div>
                    <div style="color: #666; font-size: 14px;">
                        Glissez votre fichier <strong>.lic</strong> ici<br>
                        <span style="color: #999; font-size: 12px;">ou cliquez pour sélectionner</span>
                    </div>
                    <input type="file" id="license-file-input" accept=".lic" style="display: none;" onchange="handleFileSelect(event)">
                </div>
                
                <div id="selected-file-info" style="display: none; margin-top: 10px; padding: 10px; background: #e3f2fd; border-radius: 6px;">
                    <span id="selected-file-name" style="color: #1565c0; font-weight: 500;"></span>
                    <button onclick="clearSelectedFile()" style="float: right; background: none; border: none; color: #f44336; cursor: pointer;">✕</button>
                </div>
            </div>
            
            <div id="license-message" style="display: none; padding: 12px; border-radius: 8px; margin-bottom: 20px; font-size: 14px;"></div>
            
            <button id="activate-btn" onclick="uploadLicense()" disabled style="
                width: 100%;
                padding: 14px;
                background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
                color: white;
                border: none;
                border-radius: 8px;
                font-weight: 600;
                cursor: pointer;
                font-size: 15px;
                transition: all 0.3s ease;
                opacity: 0.5;
            ">Activer la licence</button>
            
            <div style="text-align: center; margin-top: 20px;">
                <a href="#" onclick="showContactInfo(); return false;" style="color: #667eea; text-decoration: none; font-size: 13px;">
                    Besoin d'une licence ? Contactez-nous
                </a>
            </div>
            
            ${currentLicense ? `
                <div style="text-align: center; margin-top: 15px;">
                    <button onclick="hideLicenseModal()" style="background: none; border: none; color: #999; cursor: pointer; font-size: 13px;">
                        Annuler
                    </button>
                </div>
            ` : ''}
        </div>
    `;
    
    document.body.appendChild(modal);
    
    // Récupérer le hostname si pas fourni
    if (!hostname) {
        fetch(`${LICENSE_API_URL}/license/hostname`)
            .then(r => r.json())
            .then(d => {
                const codeEl = modal.querySelector('code');
                if (codeEl) codeEl.textContent = d.hostname || 'Inconnu';
                currentHostname = d.hostname;
            })
            .catch(() => {});
    }
}

function hideLicenseModal() {
    const modal = document.getElementById('license-modal');
    if (modal) modal.remove();
}

// ============================================
// GESTION DU FICHIER
// ============================================

let selectedLicenseContent = null;

function handleDragOver(event) {
    event.preventDefault();
    event.stopPropagation();
    event.currentTarget.style.borderColor = '#667eea';
    event.currentTarget.style.background = '#f0f4ff';
}

function handleDragLeave(event) {
    event.preventDefault();
    event.stopPropagation();
    event.currentTarget.style.borderColor = '#ccc';
    event.currentTarget.style.background = '#fafafa';
}

function handleDrop(event) {
    event.preventDefault();
    event.stopPropagation();
    event.currentTarget.style.borderColor = '#ccc';
    event.currentTarget.style.background = '#fafafa';
    
    const files = event.dataTransfer.files;
    if (files.length > 0) {
        processFile(files[0]);
    }
}

function handleFileSelect(event) {
    const files = event.target.files;
    if (files.length > 0) {
        processFile(files[0]);
    }
}

function processFile(file) {
    console.log("Processing file:", file.name);
    
    if (!file.name.endsWith('.lic')) {
        showLicenseMessage('Veuillez sélectionner un fichier .lic', 'error');
        return;
    }
    
    const reader = new FileReader();
    reader.onload = function(e) {
        selectedLicenseContent = e.target.result;
        
        // Afficher le nom du fichier
        document.getElementById('selected-file-info').style.display = 'block';
        document.getElementById('selected-file-name').textContent = '📄 ' + file.name;
        
        // Activer le bouton
        const btn = document.getElementById('activate-btn');
        btn.disabled = false;
        btn.style.opacity = '1';
        btn.style.cursor = 'pointer';
        
        showLicenseMessage('Fichier prêt à être activé', 'info');
    };
    reader.onerror = function() {
        showLicenseMessage('Erreur de lecture du fichier', 'error');
    };
    reader.readAsText(file);
}

function clearSelectedFile() {
    selectedLicenseContent = null;
    document.getElementById('selected-file-info').style.display = 'none';
    document.getElementById('license-file-input').value = '';
    
    const btn = document.getElementById('activate-btn');
    btn.disabled = true;
    btn.style.opacity = '0.5';
    
    const msgEl = document.getElementById('license-message');
    msgEl.style.display = 'none';
}

// ============================================
// UPLOAD ET ACTIVATION
// ============================================

async function uploadLicense() {
    if (!selectedLicenseContent) {
        showLicenseMessage('Veuillez sélectionner un fichier de licence', 'error');
        return;
    }
    
    showLicenseMessage('⏳ Validation en cours...', 'info');
    
    const btn = document.getElementById('activate-btn');
    btn.disabled = true;
    btn.textContent = 'Validation...';
    
    try {
        const response = await fetch(`${LICENSE_API_URL}/license/upload`, {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json'
            },
            body: JSON.stringify({
                license_content: selectedLicenseContent
            })
        });
        
        const result = await response.json();
        console.log("Upload result:", result);
        
        if (result.success) {
            showLicenseMessage('✓ Licence activée avec succès!', 'success');
            currentLicense = result.license_info;
            
            setTimeout(() => {
                hideLicenseModal();
                displayLicenseInfo(result.license_info);
            }, 1500);
        } else {
            showLicenseMessage(result.error || 'Erreur d\'activation', 'error');
            btn.disabled = false;
            btn.textContent = 'Activer la licence';
        }
    } catch (error) {
        console.error("Upload error:", error);
        showLicenseMessage('Erreur de connexion au serveur', 'error');
        btn.disabled = false;
        btn.textContent = 'Activer la licence';
    }
}

// ============================================
// UTILITAIRES
// ============================================

function showLicenseMessage(message, type) {
    const msgEl = document.getElementById('license-message');
    if (!msgEl) return;
    
    msgEl.style.display = 'block';
    msgEl.textContent = message;
    
    switch (type) {
        case 'success':
            msgEl.style.background = '#e8f5e9';
            msgEl.style.color = '#2e7d32';
            msgEl.style.border = '1px solid #a5d6a7';
            break;
        case 'error':
            msgEl.style.background = '#ffebee';
            msgEl.style.color = '#c62828';
            msgEl.style.border = '1px solid #ef9a9a';
            break;
        case 'info':
            msgEl.style.background = '#e3f2fd';
            msgEl.style.color = '#1565c0';
            msgEl.style.border = '1px solid #90caf9';
            break;
    }
}

function showContactInfo() {
    alert(`Pour obtenir une licence Git Pusher:

1. Copiez votre hostname Splunk affiché ci-dessus
2. Contactez-nous avec:
   - Votre hostname
   - Votre email
   - Le type de licence souhaité

Email: support@gitpusher.com
Site: https://gitpusher.com`);
}

// ============================================
// VÉRIFICATION AVANT PUSH
// ============================================

async function checkLicenseBeforePush() {
    try {
        const response = await fetch(`${LICENSE_API_URL}/license/status`);
        const data = await response.json();
        
        if (data.status !== 'valid') {
            alert('⚠️ ' + (data.error || 'Licence invalide ou absente'));
            showLicenseModal(data.error, data.error_code, data.hostname);
            return false;
        }
        
        // Vérifier les limites
        const limits = data.license?.limits || {};
        const usage = data.usage || {};
        
        if (limits.max_pushes_per_day > 0 && usage.pushes_today >= limits.max_pushes_per_day) {
            alert(`⚠️ Limite quotidienne atteinte (${limits.max_pushes_per_day} pushes/jour)`);
            return false;
        }
        
        return true;
    } catch (error) {
        console.error("License check error:", error);
        alert('⚠️ Impossible de vérifier la licence');
        return false;
    }
}

// ============================================
// EXPORT POUR UTILISATION EXTERNE
// ============================================

window.LicenseManager = {
    init: initializeLicense,
    check: checkLicenseBeforePush,
    showModal: showLicenseModal,
    getLicense: () => currentLicense,
    getHostname: () => currentHostname
};