# Generated by Django 5.2.4 on 2025-09-14 13:15

from django.db import migrations
from .. import settings
class Migration(migrations.Migration):
    dependencies = [
        ('tinywiki', '0001_initial'),
    ]

    def init_tinywiki_user(apps,schema_editor):
        from django.contrib.auth import get_user_model
        user = get_user_model().objects.create_user(**settings.TINYWIKI_USER_CONFIG)
        
    def init_tinywiki_groups_and_permissions(apps,schema_editor):
        from ..models import Page
        from django.contrib.auth.models import Group,Permission
        from django.contrib.contenttypes.models import ContentType

        PERMISSIONS = [
            'tinywiki-read-all',
            'tinywiki-delete',
            'tinywiki-create',
            'tinywiki-create-system',
            'tinywiki-edit',
            'tinywiki-edit-system',
            'tinywiki-edit-all',
            'tinywiki-delete-all',
            'tinywiki-delete-system',
        ]
        
        GROUPS = [
            ('tinywiki-moderator',('tinywiki-read-all',
                                   'tinywiki-delete-all',
                                   'tinywiki-edit-all',
                                   'tinywiki-create')),
            ('tinywiki-author',('tinywiki-create',
                                'tinywiki-edit',
                                'tinywiki-delete')),
            ('tinywiki-reader',('tinywiki-read-all',)),
            ('tinywiki-admin',('tinywiki-read-all',
                               'tinywiki-create',
                               'tinywiki-create-system',
                               'tinywiki-delete-all',
                               'tinywiki-delete-system',
                               'tinywiki-edit-all',
                               'tinywiki-edit-system'))
        ]
        
        perm_mapping = {}
        content_type = ContentType.objects.get_for_model(Page) 
        for perm in PERMISSIONS:
            permission = Permission.objects.create(codename=perm,content_type=content_type)
            perm_mapping[perm] = permission

        
        for grp,perms in GROUPS:
            group = Group.objects.create(name=grp)
            for perm in perms:
                group.permissions.add(perm_mapping[perm])   
                
        
    def init_builtin_pages(apps,schema_editor)->None:
        from ..models import Page,Image
        from ..enums import WikiContentType,WikiPageStatus
        from pathlib import Path
        import json
        
        page_path = Path(__file__).resolve().parent / "pages"
        json_file = page_path / "pages.json"
        if json_file.is_file():
            with open(json_file,"rt",encoding="utf-8") as ifile:
                data=json.loads(ifile.read())
                
            
                
            for slug,spec in data.items():
                filename = page_path / spec['file']
                with open(filename,"rt",encoding="utf-8") as ifile:
                    content = ifile.read()
                    
                Page.objects.create(slug=slug,
                                    title=spec['title'],
                                    status_data=WikiPageStatus.from_string(spec['status']).value,
                                    content_type_data=WikiContentType.from_string(spec['content_type']).value,
                                    content=content)
                
        
    def init_builtin_images(apps,schema_edit):
        from pathlib import Path
        from ..models import Image
        from django.core.files.images import ImageFile
        import json
        
        image_dir = Path(__file__).resolve().parent / "images"
        images_json_file = image_dir/ "images.json"
        
        if not images_json_file.is_file():
            return
        
        with open(images_json_file,"rt",encoding="utf-8") as ifile:
            images_data = json.loads(ifile.read())
        
        for slug,_spec in images_data.items():
            spec = dict(_spec)
            image_basename = spec['image']
            image_filename = image_dir / spec["image"]
            spec['slug'] = slug
            del spec['image']
            
            img = Image(**spec)
            with open(image_filename,"rb") as ifile:
                img_file = ImageFile(ifile,image_basename)
                img.image.save(image_basename,img_file)
            img.save()
            
        
    def init_user_imges(apps,schema_edit)->None:
        #TODO
        pass
    
    def init_user_pages(apps,schema_edit)->None:
        #TODO
        pass

    operations = [
        migrations.RunPython(init_tinywiki_groups_and_permissions),
        migrations.RunPython(init_tinywiki_user),
        migrations.RunPython(init_builtin_images),
        migrations.RunPython(init_builtin_pages),
    ]