import requests
from django.shortcuts import render, redirect
from django.urls import reverse

DOCKER_REGISTRY_URL = "https://registry.reymota.es/v2"
REGISTRY_USERNAME = "creylopez"
REGISTRY_PASSWORD = "Rey-1176"

def get_docker_registry_data():
    # Autenticarse en el registro Docker
    response = requests.get(f"{DOCKER_REGISTRY_URL}/_catalog", auth=(REGISTRY_USERNAME, REGISTRY_PASSWORD))

    if response.status_code == 200:
        repositories = response.json().get('repositories', [])
        registry_data = []

        for repo in repositories:
            tags_response = requests.get(f"{DOCKER_REGISTRY_URL}/{repo}/tags/list", auth=(REGISTRY_USERNAME, REGISTRY_PASSWORD))
            if tags_response.status_code == 200:
                tags = tags_response.json().get('tags', [])
                registry_data.append({'repository': repo, 'tags': tags})

        return registry_data
    else:
        return []

def registry_list(request):
    data = get_docker_registry_data()
    return render(request, 'registry/registry_list.html', {'data': data})

# Nueva vista para mostrar los detalles de un repositorio específico
def repository_detail(request, repository_name):
    tags_response = requests.get(f"{DOCKER_REGISTRY_URL}/{repository_name}/tags/list", auth=(REGISTRY_USERNAME, REGISTRY_PASSWORD))

    if tags_response.status_code == 200:
        tags = tags_response.json().get('tags', [])
    else:
        tags = []

    return render(request, 'registry/repository_detail.html', {'repository': repository_name, 'tags': tags})

# Vista para eliminar un tag específico
def delete_tag(request, repository_name, tag):
    manifest_url = f"{DOCKER_REGISTRY_URL}/{repository_name}/manifests/{tag}"

    # Obtener el digest del tag
    manifest_response = requests.head(manifest_url, auth=(REGISTRY_USERNAME, REGISTRY_PASSWORD), headers={"Accept": "application/vnd.docker.distribution.manifest.v2+json"})
    print("delete_tag: manifest_url ", manifest_url)
    if manifest_response.status_code == 200:
        digest = manifest_response.headers.get('Docker-Content-Digest')
        delete_response = requests.delete(f"{DOCKER_REGISTRY_URL}/{repository_name}/manifests/{digest}", auth=(REGISTRY_USERNAME, REGISTRY_PASSWORD))
        print("delete_tag: digest->",digest)
        if delete_response.status_code == 202:
            return redirect(reverse('repository_detail', args=[repository_name]))
        else:
            # Obtener las etiquetas nuevamente para renderizar la plantilla
            tags_response = requests.get(f"{DOCKER_REGISTRY_URL}/{repository_name}/tags/list", auth=(REGISTRY_USERNAME, REGISTRY_PASSWORD))
            tags = tags_response.json().get('tags', []) if tags_response.status_code == 200 else []
            return render(request, 'registry/repository_detail.html', {'repository': repository_name, 'tags': tags, 'error': 'Error deleting the tag.'})
    else:
        # Obtener las etiquetas nuevamente para renderizar la plantilla
        tags_response = requests.get(f"{DOCKER_REGISTRY_URL}/{repository_name}/tags/list", auth=(REGISTRY_USERNAME, REGISTRY_PASSWORD))
        tags = tags_response.json().get('tags', []) if tags_response.status_code == 200 else []
        return render(request, 'registry/repository_detail.html', {'repository': repository_name, 'tags': tags, 'error': 'Tag not found.'})