<?php

namespace Database\Seeds;

use App\Services\Database\Connection;
use PDO;

class DatabaseSeeder
{
    private PDO $pdo;

    public function __construct(Connection $connection)
    {
        $this->pdo = $connection->getPdo();
    }

    /**
     * Seed all defaults.
     */
    public function seed(): void
    {
        echo "Seeding roles and permissions...\n";
        $this->seedRolesAndPermissions();

        echo "Seeding default settings...\n";
        $this->seedSettings();

        echo "Seeding sample crawler sources...\n";
        $this->seedSources();

        echo "Seeding default administrator...\n";
        $this->seedDefaultAdmin();

        echo "Seeding completed successfully!\n";
    }

    private function seedRolesAndPermissions(): void
    {
        // Insert Roles
        $roles = [
            ['name' => 'Administrator', 'code' => 'admin', 'description' => 'Full administrative access to the platform.'],
            ['name' => 'Member', 'code' => 'member', 'description' => 'Access to CRM, Opportunities and Reports.'],
        ];

        foreach ($roles as $role) {
            $stmt = $this->pdo->prepare("INSERT IGNORE INTO roles (name, code, description) VALUES (?, ?, ?)");
            $stmt->execute([$role['name'], $role['code'], $role['description']]);
        }

        // Insert Permissions
        $permissions = [
            ['name' => 'View Dashboard', 'code' => 'view_dashboard', 'description' => 'Access the admin dashboard metrics.'],
            ['name' => 'Manage CRM', 'code' => 'manage_crm', 'description' => 'Create/update contacts and log interactions.'],
            ['name' => 'View Opportunities', 'code' => 'view_opportunities', 'description' => 'Browse VCs, grants and accelerators.'],
            ['name' => 'Run Collectors', 'code' => 'run_collectors', 'description' => 'Manually trigger crawler collections.'],
            ['name' => 'Generate Reports', 'code' => 'generate_reports', 'description' => 'Trigger AI daily summaries.'],
            ['name' => 'Manage Settings', 'code' => 'manage_settings', 'description' => 'Update application parameters.'],
            ['name' => 'Manage Users', 'code' => 'manage_users', 'description' => 'Manage roles and accounts of users.'],
        ];

        foreach ($permissions as $permission) {
            $stmt = $this->pdo->prepare("INSERT IGNORE INTO permissions (name, code, description) VALUES (?, ?, ?)");
            $stmt->execute([$permission['name'], $permission['code'], $permission['description']]);
        }

        // Fetch Role IDs and Permission IDs
        $roleIds = $this->pdo->query("SELECT code, id FROM roles")->fetchAll(PDO::FETCH_KEY_PAIR);
        $permissionIds = $this->pdo->query("SELECT code, id FROM permissions")->fetchAll(PDO::FETCH_KEY_PAIR);

        // Map Permissions to Admin (All permissions)
        foreach ($permissionIds as $pId => $pCode) {
            $stmt = $this->pdo->prepare("INSERT IGNORE INTO role_permissions (role_id, permission_id) VALUES (?, ?)");
            $stmt->execute([$roleIds['admin'], $pId]);
        }

        // Map Permissions to Member (Subset of permissions)
        $memberPermissions = ['view_dashboard', 'manage_crm', 'view_opportunities', 'generate_reports'];
        foreach ($permissionIds as $pId => $pCode) {
            if (in_array($pCode, $memberPermissions)) {
                $stmt = $this->pdo->prepare("INSERT IGNORE INTO role_permissions (role_id, permission_id) VALUES (?, ?)");
                $stmt->execute([$roleIds['member'], $pId]);
            }
        }
    }

    private function seedSettings(): void
    {
        $settings = [
            ['key' => 'system_email', 'value' => 'info@scoutiq.intaleqapp.com', 'description' => 'Primary sender email address.'],
            ['key' => 'crawler_enabled', 'value' => 'true', 'description' => 'Global toggle for data collection crawlers.'],
            ['key' => 'crawler_interval_hours', 'value' => '24', 'description' => 'Delay between crawler runs.'],
            ['key' => 'crawler_max_new_per_feed', 'value' => '5', 'description' => 'Maximum new opportunities to process per feed in a single run.'],
            ['key' => 'crawler_max_new_total', 'value' => '100', 'description' => 'Maximum total new opportunities to process in a single collector run.'],
            ['key' => 'telegram_min_score', 'value' => '75', 'description' => 'Minimum opportunity score to trigger Telegram notifications.'],
        ];

        foreach ($settings as $setting) {
            $stmt = $this->pdo->prepare("INSERT IGNORE INTO settings (`key`, value, description) VALUES (?, ?, ?)");
            $stmt->execute([$setting['key'], $setting['value'], $setting['description']]);
        }
    }

    private function seedSources(): void
    {
        $sources = [
            ['name' => 'TechCrunch Mobility Feed', 'url' => 'https://techcrunch.com/category/transportation/feed/', 'type' => 'rss'],
            ['name' => 'VentureBeat AI Feed', 'url' => 'https://venturebeat.com/category/ai/feed/', 'type' => 'rss'],
            ['name' => 'YC Directory API', 'url' => 'https://api.ycombinator.com/v1/companies', 'type' => 'api'],
        ];

        foreach ($sources as $source) {
            $stmt = $this->pdo->prepare("SELECT id FROM sources WHERE url = ?");
            $stmt->execute([$source['url']]);
            if (!$stmt->fetch()) {
                $stmt = $this->pdo->prepare("INSERT INTO sources (name, url, type, status) VALUES (?, ?, ?, 'active')");
                $stmt->execute([$source['name'], $source['url'], $source['type']]);
                $sourceId = (int)$this->pdo->lastInsertId();

                $category = str_contains($source['name'], 'Mobility') ? 'mobility' : 'ai';
                $stmt = $this->pdo->prepare("INSERT INTO source_categories (source_id, category) VALUES (?, ?)");
                $stmt->execute([$sourceId, $category]);
            }
        }
    }

    private function seedDefaultAdmin(): void
    {
        $email = 'admin@scoutiq.com';
        $stmt = $this->pdo->prepare("SELECT id FROM users WHERE email = ?");
        $stmt->execute([$email]);
        if (!$stmt->fetch()) {
            $passwordHash = password_hash('AdminScout123!', PASSWORD_BCRYPT);
            
            $this->pdo->beginTransaction();
            try {
                $stmt = $this->pdo->prepare("INSERT INTO users (name, email, password_hash, status) VALUES (?, ?, ?, 'active')");
                $stmt->execute(['ScoutIQ Admin', $email, $passwordHash]);
                $userId = (int)$this->pdo->lastInsertId();

                $stmt = $this->pdo->prepare("SELECT id FROM roles WHERE code = 'admin'");
                $stmt->execute();
                $roleId = $stmt->fetchColumn();

                if ($roleId) {
                    $stmt = $this->pdo->prepare("INSERT INTO user_roles (user_id, role_id) VALUES (?, ?)");
                    $stmt->execute([$userId, $roleId]);
                }

                $this->pdo->commit();
                echo "Admin User Created: {$email} / AdminScout123!\n";
            } catch (\Exception $e) {
                $this->pdo->rollBack();
                echo "Failed to create default admin: " . $e->getMessage() . "\n";
            }
        }
    }
}