from kivy.app import App
from kivy.lang import Builder
# from kivy.storage.jsonstore import JsonStore  # removed,  no need to use JsonStore
from kivy.uix.boxlayout import BoxLayout
from plyer import filechooser
import json
from pathlib import Path

kv = """
MainJson:
    orientation: 'vertical'
    padding:10
    spacing:10
    Label:
        text: 'Example of Json'
        size_hint_y: None
        height: 30
    ScrollView:
        size:self.size
        GridLayout:
            cols:2
            padding:10
            spacing:10
            height:self.minimum_height
            width:self.minimum_width

            Button:
                text:'upload photo'
                on_press:root.filechooseropenfile()
                background_color:1,1,0,1
            Image:
                source:''
                id:image1
            Label:
                text:'Name: '
            TextInput:
                multline:False
                id:name
                hint_text:'full name: '
            Label:
                text:'age'

            TextInput:
                multline:False
                id:age
                hint_text:'your Age: '
            Button:
                text:'save'
                background_color:0,0,1,1
                on_press:root.save()
            Button:
                text:'Load'
                background_color:0,1,0,1
                on_press:root.load()
    BoxLayout:
        orientation:'vertical'
        TextInput:
            id:display
            readonly:True
        Image:
            source:''
            id:simg

"""
FILENAME = 'user_data.json'

class MainJson(BoxLayout):
    def __init__(self, **kwargs):
        super().__init__(**kwargs)
        # self.store = JsonStore('storage.json') removed - not used
        self.p = Path(FILENAME)

    def save(self):
        dict1 = {'name': self.ids.name.text, 'age': self.ids.age.text, "image": self.ids.image1.source}
        with open(self.p, 'w') as f:
            #     f.write(json.dumps(dict1, indent=4))
            json.dump(dict1, f, indent=4)

    def load(self):
        if self.p.exists():
            with open(self.p) as jn:
                d = json.load(jn)  # dict is a python builtin, I changed the name to d
            self.ids.display.text = f"The saved data:  Name: {d['name']}, age: {d['age']}"
            self.ids.simg.source=f"{d['image']}"

        else:
            self.ids.display.text = 'file does not exist'
    def filechooseropenfile(self):
        filechooser.open_file(on_selection=self.selected)

    def selected(self,selection):

        if selection:
            self .ids.image1.source=selection[0]

    count=1

class JsonExampleApp(App):
    def build(self):
        return Builder.load_string(kv)

    def on_start(self):
        # load the data if it is available
        p = Path(FILENAME)
        if p.exists():
            with open(p) as jn:
                d = json.load(jn)
            # check if the file contains both name and age, if not delete the file
            if set([ 'age', 'name','image']) == d.keys():
                print('valid file, file contains the required keys')
                self.root.ids.name.text = d['name']
                self.root.ids.age.text = d['age']
                self.root.ids.age.text = d['image']
            else:
                p.unlink()
                print('invalid file deleted')


JsonExampleApp().run()