// Settings API Routes
import express from 'express';
import pool from '../db.js';

const router = express.Router();

// GET /api/settings - Get all settings
router.get('/', async (req, res) => {
    try {
        const [rows] = await pool.query('SELECT setting_key, setting_value FROM settings');

        // Convert to object format
        const settings = {};
        for (const row of rows) {
            settings[row.setting_key] = row.setting_value;
        }

        // Map to frontend AppSettings format
        const appSettings = {
            schoolName: settings['NAMA_SEKOLAH'] || 'SMA Negeri 1 Abiansemal',
            schoolLat: parseFloat(settings['LATITUDE']) || -8.5107893,
            schoolLng: parseFloat(settings['LONGITUDE']) || 115.2142912,
            allowedRadiusMeters: parseInt(settings['RADIUS_METER']) || 100,
            morningStart: settings['JAM_MASUK_PAGI'] || '07:00',
            morningEnd: settings['JAM_PULANG_PAGI'] || '12:00',
            afternoonStart: settings['JAM_MASUK_SIANG'] || '12:30',
            afternoonEnd: settings['JAM_PULANG_SIANG'] || '16:00',
            allowedDays: settings['HARI_AKTIF'] ? settings['HARI_AKTIF'].split(',').map(d => parseInt(d.trim())) : [1, 2, 3, 4, 5, 6],
            activeDates: settings['TANGGAL_AKTIF'] ? settings['TANGGAL_AKTIF'].split(',').filter(d => d.trim()) : [],
            fonnteToken: settings['FONNTE_TOKEN'] || '',
            availableClasses: settings['DAFTAR_KELAS'] ? settings['DAFTAR_KELAS'].split(',').map(c => c.trim()) : [],
            semester: settings['SEMESTER'] || 'Ganjil',
            academicYear: settings['TAHUN_AJARAN'] || '',
            faceMatchThreshold: parseFloat(settings['AMBANG_WAJAH']) || 0.45,
            autoRekapAlfaTime: settings['AUTO_REKAP_ALFA_TIME'] || '19:00'
        };

        res.json(appSettings);
    } catch (error) {
        console.error('GET /api/settings Error:', error);
        res.status(500).json({ error: error.message });
    }
});

// POST /api/settings - Save settings
router.post('/', async (req, res) => {
    try {
        const settings = req.body;

        // Map frontend format to database key-value pairs
        const settingsMap = {
            'NAMA_SEKOLAH': settings.schoolName,
            'LATITUDE': settings.schoolLat?.toString(),
            'LONGITUDE': settings.schoolLng?.toString(),
            'RADIUS_METER': settings.allowedRadiusMeters?.toString(),
            'JAM_MASUK_PAGI': settings.morningStart,
            'JAM_PULANG_PAGI': settings.morningEnd,
            'JAM_MASUK_SIANG': settings.afternoonStart,
            'JAM_PULANG_SIANG': settings.afternoonEnd,
            'HARI_AKTIF': Array.isArray(settings.allowedDays) ? settings.allowedDays.join(',') : settings.allowedDays,
            'TANGGAL_AKTIF': Array.isArray(settings.activeDates) ? settings.activeDates.join(',') : settings.activeDates,
            'FONNTE_TOKEN': settings.fonnteToken,
            'DAFTAR_KELAS': Array.isArray(settings.availableClasses) ? settings.availableClasses.join(',') : settings.availableClasses,
            'SEMESTER': settings.semester,
            'TAHUN_AJARAN': settings.academicYear,
            'AMBANG_WAJAH': settings.faceMatchThreshold?.toString(),
            'AUTO_REKAP_ALFA_TIME': settings.autoRekapAlfaTime
        };

        for (const [key, value] of Object.entries(settingsMap)) {
            if (value !== undefined && value !== null) {
                await pool.query(
                    `INSERT INTO settings (setting_key, setting_value) VALUES (?, ?)
           ON DUPLICATE KEY UPDATE setting_value = ?`,
                    [key, value, value]
                );
            }
        }

        res.json({ success: true });
    } catch (error) {
        console.error('POST /api/settings Error:', error);
        res.status(500).json({ error: error.message });
    }
});

export default router;