<?php
// ============================================================
// Admin/marketing/get_campaigns_log.php
// API Endpoint to fetch marketing campaign delivery logs for Admin dashboard
// ============================================================

require_once __DIR__ . '/../../connect.php';

// 1. Authorize Admin/Super Admin
if ($role !== 'admin' && $role !== 'super_admin') {
    http_response_code(403);
    echo json_encode(['status' => 'failure', 'message' => 'Unauthorized access. Admin role required.']);
    exit;
}

try {
    $limit = filterRequest('limit', 'int') ?? 50;
    $countryCode = filterRequest('country_code');

    $sql = "SELECT l.*, p.first_name, p.last_name 
            FROM marketing_campaigns_log l
            LEFT JOIN passengers p ON p.id = l.passenger_id";
    
    $params = [];
    if ($countryCode) {
        $sql .= " WHERE l.country_code = :country";
        $params[':country'] = strtoupper($countryCode);
    }

    $sql .= " ORDER BY l.sent_at DESC LIMIT :limit";

    $stmt = $con->prepare($sql);
    $stmt->bindValue(':limit', $limit, PDO::PARAM_INT);
    foreach ($params as $key => $val) {
        $stmt->bindValue($key, $val);
    }
    $stmt->execute();
    $logs = $stmt->fetchAll(PDO::FETCH_ASSOC);

    // Decrypt names or just return them
    // (Names are not encrypted in this schema, only phones are, so we can return directly)

    // Aggregate statistics for Dashboard charts
    $sqlStats = "SELECT message_type, COUNT(*) as count 
                 FROM marketing_campaigns_log";
    if ($countryCode) {
        $sqlStats .= " WHERE country_code = :country";
        $stmtStats = $con->prepare($sqlStats);
        $stmtStats->execute([':country' => strtoupper($countryCode)]);
    } else {
        $stmtStats = $con->prepare($sqlStats);
        $stmtStats->execute();
    }
    $stats = $stmtStats->fetchAll(PDO::FETCH_ASSOC);

    jsonSuccess([
        'logs' => $logs,
        'stats' => $stats
    ]);

} catch (Exception $e) {
    error_log("[get_campaigns_log.php] Error: " . $e->getMessage());
    jsonError("Failed to fetch campaigns log: " . $e->getMessage());
}