from flask import request, Blueprint, render_template, session, url_for
from checker import check_auth
from os import path
from datetime import date
from .report_model import view_report, make_report
import json

with open(path.join(path.dirname(__file__), 'reports.json')) as f:
    report_list = json.load(f)

report_bp = Blueprint('report_bp', __name__, template_folder='templates')

@report_bp.route('/menu')
@check_auth
def menu():
    if request.method == 'GET':
        return render_template('report_menu.html')
    
@report_bp.route('/create', methods=['GET', 'POST'])
@check_auth
def create():
    if request.method == 'GET':
        return render_template('report_basic.html', 
                               is_write=True, 
                               title='Создание отчетов', 
                               items=report_list,
                               date_today=date.today())
    else:
        id = request.form.get('category')
        month = request.form.get('month')
        year = request.form.get('year')
        data = dict(id=id, month=month, year=year)
        
        if session['role'] in report_list[id]['data']['write']:
            proc_name = report_list[id]['data']['procedure']
            ready_report = make_report(data, proc_name)
            if ready_report.status:
                return render_template("OK.html")
            else:
                return render_template("error.html", error_message=ready_report.error_message)
        else:
            return render_template("error.html", error_message='Недостаточно прав для создания данного отчета!')

@report_bp.route('/view', methods=['GET', 'POST'])
@check_auth
def view():
    if request.method == 'GET':
        return render_template('report_basic.html', 
                               is_write=False, 
                               title='Просмотр отчетов', 
                               items=report_list,
                               date_today=date.today())
    else:
        id = request.form.get('category')
        month = request.form.get('month')
        year = request.form.get('year')
        data = dict(id=id, month=month, year=year)

        if session['role'] in report_list[id]['data']['read']:
            ready_report = view_report(data, report_list[id]['data']['view'])
            if ready_report.status:
                title= f'{report_list[id]['data']['title']} за {data["month"]}-{data["year"]}'
                return render_template("output.html", items=ready_report.result, 
                                    header=title,
                                    link = url_for('report_bp.menu'))
            else:
                return render_template("error.html", error_message=ready_report.error_message)
        else:
            return render_template("error.html", error_message='Недосточно прав для чтения данного отчета!')