import math
import os

import requests
from django.shortcuts import render
from dotenv import load_dotenv
from github import Github

load_dotenv()
g = Github(os.getenv('GH_TOKEN'))

# Create your views here.
def home(request):
    page = request.GET.get('page') or 1
    items = request.GET.get('items') or 10
    sort = request.GET.get('sort') or 'updated'
    direction = request.GET.get('direction') or 'desc'
    search = request.GET.get('search') or ''
    context = {}
    sort_map = {
        'updated': 'UPDATED_AT',
        'stars': 'STARGAZERS',
        'pushed': 'PUSHED_AT',
        'created': 'CREATED_AT',
        'name': 'NAME'
    }
    direction_map = {
        'desc': 'DESC',
        'asc': 'ASC'
    }
    
    # make request to github api to get page of repos and total count of repos
    url = 'https://api.github.com/graphql'
    headers = {'Authorization': 'token ' + os.getenv('GH_TOKEN')}
    user = 'luciferreeves'

    query = """
    query {{
        user(login: "{user}") {{
            repositories(
                first: 100
                orderBy: {{field: {sort}, direction: {direction}}}
                ownerAffiliations: OWNER
                privacy: PUBLIC
            ) {{
                totalCount
                edges {{
                    node {{
                        name
                        description
                    }}
                }}
            }}
        }}
    }}
    """.format(user=user, sort=sort_map[sort], direction=direction_map[direction])
    data = requests.post(url, json={'query': query}, headers=headers).json()

    repos = [{'name': repo['node']['name'], 'description': repo['node']['description']} for repo in data['data']['user']['repositories']['edges']]
    total_count = data['data']['user']['repositories']['totalCount']

    
    context['search'] = search
    if search:
        context['repos'] = [repo for repo in repos if search.lower() in repo['name'].lower() or search.lower() in repo['description'].lower()]
        context['total_count'] = len(context['repos'])
    else:
        context['repos'] = repos
        context['total_count'] = total_count

    # calculate pagination
    context['page'] = int(page)
    context['items'] = int(items)
    context['sort'] = sort
    context['direction'] = direction
    context['num_pages'] =math.ceil(context['total_count'] / context['items'])
    context['repos'] = context['repos'][(context['page'] - 1) * context['items']:context['page'] * context['items']]
    
    return render(request, 'dev_status/home.html', context)

def get_repo(request, r='thatcomputerscientist', p=None):
    repository = 'luciferreeves/{}'.format(r)
    parent = None
    if p and not len(p.split('/')) == 0:
        parent = '/'.join(p.split('/')[:-1])
    contents = g.get_repo(repository).get_contents(p or '')
    context = {}
    try:
        files = []
        while contents:
            file_content = contents.pop(0)
            files.append(file_content)
        context['title'] = 'Tree - {}'.format(p)
        context['files'] = files
        context['parent'] = parent
        context['repo'] = r
    except:
        context['title'] = 'File - {}'.format(p)
        context['file'] = contents.html_url
        context['parent'] = parent
        context['repo'] = r
    finally:
        return render(request, 'dev_status/repo.html', context)