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

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'])
@flasktools.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'])
@flasktools.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'])
@flasktools.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'])
@flasktools.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'])
@flasktools.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')
@flasktools.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({})