"""
Quality Module Routes
"""
from flask import Blueprint, render_template, session, redirect, url_for, request, jsonify, flash
from app.modules.quality.quality import (
    ensure_scanfg_orders_table, 
    save_fg_scan, 
    get_latest_scans,
    get_fg_report,
    get_daily_statistics,
    get_cp_statistics
)
import logging

logger = logging.getLogger(__name__)

quality_bp = Blueprint('quality', __name__, url_prefix='/quality')


@quality_bp.route('/', methods=['GET'])
def quality_index():
    """Quality module main page"""
    if 'user_id' not in session:
        return redirect(url_for('main.login'))
    
    return render_template('modules/quality/index.html')


@quality_bp.route('/reports', methods=['GET'])
def quality_reports():
    """Quality reports page - displays FG scan reports"""
    if 'user_id' not in session:
        return redirect(url_for('main.login'))
    
    # Ensure scanfg_orders table exists
    ensure_scanfg_orders_table()
    
    return render_template('modules/quality/fg_reports.html')


@quality_bp.route('/fg_scan', methods=['GET', 'POST'])
def fg_scan():
    """Finish goods scan page - POST saves scan data, GET displays form and latest scans"""
    if 'user_id' not in session:
        return redirect(url_for('main.login'))
    
    # Ensure scanfg_orders table exists
    ensure_scanfg_orders_table()

    if request.method == 'POST':
        # Handle form submission
        operator_code = request.form.get('operator_code')
        cp_code = request.form.get('cp_code')
        oc1_code = request.form.get('oc1_code')
        oc2_code = request.form.get('oc2_code')
        defect_code = request.form.get('defect_code')
        date = request.form.get('date')
        time = request.form.get('time')

        try:
            # Save the scan using business logic function
            success, approved_count, rejected_count = save_fg_scan(
                operator_code, cp_code, oc1_code, oc2_code, defect_code, date, time
            )
            
            # Flash appropriate message based on defect code
            if int(defect_code) == 0 or defect_code == '000':
                flash(f'✅ APPROVED scan recorded for {cp_code}. Total approved: {approved_count}')
            else:
                flash(f'❌ REJECTED scan recorded for {cp_code} (defect: {defect_code}). Total rejected: {rejected_count}')

        except Exception as e:
            logger.error(f"Error saving finish goods scan data: {e}")
            flash(f"Error saving scan data: {str(e)}", 'error')
        
        # Check if this is an AJAX request (for scan-to-boxes feature)
        if request.headers.get('X-Requested-With') == 'XMLHttpRequest' or request.accept_mimetypes.best == 'application/json':
            # For AJAX requests, return JSON response without redirect
            return jsonify({'success': True, 'message': 'Scan recorded successfully'})
        
        # For normal form submissions, redirect to prevent form resubmission (POST-Redirect-GET pattern)
        return redirect(url_for('quality.fg_scan'))

    # GET request - Fetch and display latest scans
    try:
        scan_groups = get_latest_scans(limit=25)
    except Exception as e:
        logger.error(f"Error fetching latest scans: {e}")
        flash(f"Error fetching scan data: {str(e)}", 'error')
        scan_groups = []

    return render_template('modules/quality/fg_scan.html', scan_groups=scan_groups)


# API Routes for AJAX requests

@quality_bp.route('/api/fg_report', methods=['POST'])
def api_fg_report():
    """
    API endpoint for generating FG reports via AJAX
    
    Expected JSON body:
    {
        'report_type': 'daily|select-day|date-range|5-day|defects-today|defects-date|defects-range|defects-5day|all',
        'filter_date': 'YYYY-MM-DD' (optional, for select-day/defects-date),
        'start_date': 'YYYY-MM-DD' (optional, for date-range/defects-range),
        'end_date': 'YYYY-MM-DD' (optional, for date-range/defects-range)
    }
    """
    if 'user_id' not in session:
        return jsonify({'success': False, 'message': 'Unauthorized'}), 401
    
    try:
        data = request.get_json()
        report_type = data.get('report_type')
        filter_date = data.get('filter_date')
        start_date = data.get('start_date')
        end_date = data.get('end_date')
        
        # Validate report type
        valid_types = ['daily', 'select-day', 'date-range', '5-day', 'defects-today', 
                       'defects-date', 'defects-range', 'defects-5day', 'all']
        
        if report_type not in valid_types:
            return jsonify({'success': False, 'message': 'Invalid report type'}), 400
        
        # Generate report
        result = get_fg_report(report_type, filter_date, start_date, end_date)
        
        return jsonify(result)
        
    except Exception as e:
        logger.error(f"Error in API fg_report: {e}")
        return jsonify({
            'success': False,
            'message': f'Error processing report: {str(e)}'
        }), 500


@quality_bp.route('/api/daily_stats', methods=['GET'])
def api_daily_stats():
    """API endpoint for today's statistics"""
    if 'user_id' not in session:
        return jsonify({'success': False, 'message': 'Unauthorized'}), 401
    
    try:
        stats = get_daily_statistics()
        return jsonify({
            'success': True,
            'data': stats
        })
    except Exception as e:
        logger.error(f"Error in API daily_stats: {e}")
        return jsonify({
            'success': False,
            'message': f'Error fetching statistics: {str(e)}'
        }), 500


@quality_bp.route('/api/cp_stats/<cp_code>', methods=['GET'])
def api_cp_stats(cp_code):
    """API endpoint for CP code statistics"""
    if 'user_id' not in session:
        return jsonify({'success': False, 'message': 'Unauthorized'}), 401
    
    try:
        stats = get_cp_statistics(cp_code)
        return jsonify({
            'success': True,
            'data': stats
        })
    except Exception as e:
        logger.error(f"Error in API cp_stats: {e}")
        return jsonify({
            'success': False,
            'message': f'Error fetching CP statistics: {str(e)}'
        }), 500