from FileHandler import read_ingredient_json, combine_ingredients, write_checklist

import flet as ft

selected_meals = {}
meal_json = read_ingredient_json()

def selector(page: ft.Page):
    def update_meal_selection(event):
        for meal in meal_list:
            if meal.value == False:
                if meal.label in selected_meals:
                    selected_meals.pop(meal.label)
            else:
                selected_meals[meal.label] = meal_json[meal.label]
        if selected_meals == {}:
            page.show_dialog(ft.SnackBar(ft.Text("Please select at least one meal.")))
            return

        write_checklist(combine_ingredients(selected_meals))
        

    page.title = "Select Some Meals"
    meal_list = []
    for name, _ in meal_json.items():
        meal_list.append(ft.Checkbox(
                    label = name,
                    active_color = '#6da0cd',
                    
                )
            )

    submit_button = ft.Button(content=ft.Text("Make Shopping List"), on_click=update_meal_selection)
    
    page.controls[0].content = ft.Column(
                            controls = [
                                ft.ListView(
                                    controls=meal_list,
                                    expand=True,
                                    spacing=10,
                                    padding=10,
                                ),
                                submit_button,
                            ],
                            height = 700,
                            expand = False,
                        )
    page.update()

if __name__ == "__main__":
    ft.app(selector)