import flask; from flask import request
import os
import urllib.parse

from voussoirkit import flasktools
from voussoirkit import gentools
from voussoirkit import stringtools

import etiquette

from .. import common
from .. import decorators

site = common.site
session_manager = common.session_manager

# Individual albums ################################################################################

@site.route('/album/<album_id>')
def get_album_html(album_id):
    album = common.P_album(album_id, response_type='html')
    response = common.render_template(
        request,
        'album.html',
        album=album,
        view=request.args.get('view', 'grid'),
    )
    return response

@site.route('/album/<album_id>.json')
def get_album_json(album_id):
    album = common.P_album(album_id, response_type='json')
    album = album.jsonify()
    return flasktools.make_json_response(album)

@site.route('/album/<album_id>.zip')
def get_album_zip(album_id):
    album = common.P_album(album_id, response_type='html')

    recursive = request.args.get('recursive', True)
    recursive = etiquette.helpers.truthystring(recursive)

    streamed_zip = etiquette.helpers.zip_album(album, recursive=recursive)

    if album.title:
        download_as = f'album {album.id} - {album.title}.zip'
    else:
        download_as = f'album {album.id}.zip'

    download_as = etiquette.helpers.remove_path_badchars(download_as)
    download_as = urllib.parse.quote(download_as)
    outgoing_headers = {
        'Content-Type': 'application/octet-stream',
        'Content-Disposition': f'attachment; filename*=UTF-8\'\'{download_as}',
    }

    return flask.Response(streamed_zip, headers=outgoing_headers)

@site.route('/album/<album_id>/add_child', methods=['POST'])
@decorators.required_fields(['child_id'], forbid_whitespace=True)
def post_album_add_child(album_id):
    album = common.P_album(album_id, response_type='json')

    child_ids = stringtools.comma_space_split(request.form['child_id'])
    children = list(common.P_albums(child_ids, response_type='json'))
    print(children)
    album.add_children(children, commit=True)
    response = album.jsonify()
    return flasktools.make_json_response(response)

@site.route('/album/<album_id>/remove_child', methods=['POST'])
@decorators.required_fields(['child_id'], forbid_whitespace=True)
def post_album_remove_child(album_id):
    album = common.P_album(album_id, response_type='json')

    child_ids = stringtools.comma_space_split(request.form['child_id'])
    children = list(common.P_albums(child_ids, response_type='json'))
    album.remove_children(children, commit=True)
    response = album.jsonify()
    return flasktools.make_json_response(response)

@site.route('/album/<album_id>/remove_thumbnail_photo', methods=['POST'])
def post_album_remove_thumbnail_photo(album_id):
    album = common.P_album(album_id, response_type='json')
    album.set_thumbnail_photo(None)
    common.P.commit(message='album remove thumbnail photo endpoint')
    return flasktools.make_json_response(album.jsonify())

@site.route('/album/<album_id>/refresh_directories', methods=['POST'])
def post_album_refresh_directories(album_id):
    album = common.P_album(album_id, response_type='json')
    for directory in album.get_associated_directories():
        if not directory.is_dir:
            continue
        digest = common.P.digest_directory(directory, new_photo_ratelimit=0.1)
        gentools.run(digest)
    common.P.commit(message='refresh album directories endpoint')
    return flasktools.make_json_response({})

@site.route('/album/<album_id>/set_thumbnail_photo', methods=['POST'])
@decorators.required_fields(['photo_id'], forbid_whitespace=True)
def post_album_set_thumbnail_photo(album_id):
    album = common.P_album(album_id, response_type='json')
    photo = common.P_photo(request.form['photo_id'], response_type='json')
    album.set_thumbnail_photo(photo)
    common.P.commit(message='album set thumbnail photo endpoint')
    return flasktools.make_json_response(album.jsonify())

# Album photo operations ###########################################################################

@site.route('/album/<album_id>/add_photo', methods=['POST'])
@decorators.required_fields(['photo_id'], forbid_whitespace=True)
def post_album_add_photo(album_id):
    '''
    Add a photo or photos to this album.
    '''
    album = common.P_album(album_id, response_type='json')

    photo_ids = stringtools.comma_space_split(request.form['photo_id'])
    photos = list(common.P_photos(photo_ids, response_type='json'))
    album.add_photos(photos, commit=True)
    response = album.jsonify()
    return flasktools.make_json_response(response)

@site.route('/album/<album_id>/remove_photo', methods=['POST'])
@decorators.required_fields(['photo_id'], forbid_whitespace=True)
def post_album_remove_photo(album_id):
    '''
    Remove a photo or photos from this album.
    '''
    album = common.P_album(album_id, response_type='json')

    photo_ids = stringtools.comma_space_split(request.form['photo_id'])
    photos = list(common.P_photos(photo_ids, response_type='json'))
    album.remove_photos(photos, commit=True)
    response = album.jsonify()
    return flasktools.make_json_response(response)

# Album tag operations #############################################################################

@site.route('/album/<album_id>/add_tag', methods=['POST'])
def post_album_add_tag(album_id):
    '''
    Apply a tag to every photo in the album.
    '''
    response = {}
    album = common.P_album(album_id, response_type='json')

    tag = request.form['tagname'].strip()
    try:
        tag = common.P_tag(tag, response_type='json')
    except etiquette.exceptions.NoSuchTag as exc:
        response = exc.jsonify()
        return flasktools.make_json_response(response, status=404)
    recursive = request.form.get('recursive', False)
    recursive = etiquette.helpers.truthystring(recursive)
    album.add_tag_to_all(tag, nested_children=recursive, commit=True)
    response['action'] = 'add_tag'
    response['tagname'] = tag.name
    return flasktools.make_json_response(response)

# Album metadata operations ########################################################################

@site.route('/album/<album_id>/edit', methods=['POST'])
def post_album_edit(album_id):
    '''
    Edit the title / description.
    '''
    album = common.P_album(album_id, response_type='json')

    title = request.form.get('title', None)
    description = request.form.get('description', None)
    album.edit(title=title, description=description, commit=True)
    response = album.jsonify(minimal=True)
    return flasktools.make_json_response(response)

@site.route('/album/<album_id>/show_in_folder', methods=['POST'])
def post_album_show_in_folder(album_id):
    if not request.is_localhost:
        flask.abort(403)

    album = common.P_album(album_id, response_type='json')
    directories = album.get_associated_directories()
    if len(directories) != 1:
        flask.abort(400)
    directory = directories.pop()

    if os.name == 'nt':
        command = f'start explorer.exe "{directory.absolute_path}"'
        os.system(command)
        return flasktools.make_json_response({})

    flask.abort(501)

# Album listings ###################################################################################

@site.route('/all_albums.json')
@decorators.cached_endpoint(max_age=15)
def get_all_album_names():
    all_albums = {album.id: album.display_name for album in common.P.get_albums()}
    response = {'albums': all_albums}
    return flasktools.make_json_response(response)

def get_albums_core():
    albums = list(common.P.get_root_albums())
    albums.sort(key=lambda x: x.display_name.lower())
    return albums

@site.route('/albums')
def get_albums_html():
    albums = get_albums_core()
    response = common.render_template(
        request,
        'album.html',
        albums=albums,
        view=request.args.get('view', 'grid'),
    )
    return response

@site.route('/albums.json')
def get_albums_json():
    albums = get_albums_core()
    albums = [album.jsonify(minimal=True) for album in albums]
    return flasktools.make_json_response(albums)

# Album create and delete ##########################################################################

@site.route('/albums/create_album', methods=['POST'])
def post_albums_create():
    title = request.form.get('title', None)
    description = request.form.get('description', None)
    parent_id = request.form.get('parent_id', None)
    if parent_id is not None:
        parent = common.P_album(parent_id, response_type='json')

    user = session_manager.get(request).user

    album = common.P.new_album(title=title, description=description, author=user)
    if parent_id is not None:
        parent.add_child(album)
    common.P.commit('create album endpoint')

    response = album.jsonify(minimal=False)
    return flasktools.make_json_response(response)

@site.route('/album/<album_id>/delete', methods=['POST'])
def post_album_delete(album_id):
    album = common.P_album(album_id, response_type='json')
    album.delete(commit=True)
    return flasktools.make_json_response({})