from flask import Flask, render_template, request
from flask_assets import Bundle, Environment
from arango import ArangoClient
from minio import Minio

import socket, os




app = Flask(__name__)

assets = Environment(app)
css = Bundle("src/*.css", output="dist/main.css")

# https://unpkg.com/htmx.org
#js  = Bundle("src/*.js", output="dist/main.js")

assets.register("css", css)
#assets.register("js", js)
css.build()
#js.build()



docker_short_id = socket.gethostname()
 
arango_client = ArangoClient(hosts='https://arango.guaranteedstruggle.host') 
db = arango_client.db('board1', username='root', password='stolendick527')


# предполагается что меняться список будет весьма редко, поэтому подхватываем при лишь при перезапуске
boards0     = db.collection('boards')
print(boards0)
board_list  = [ k['_key'] for k in boards0]


@app.route('/liveness')
def healthx(): 
  return "<h1><center>Liveness check completed</center><h1>"
  
@app.route('/readiness')
def healthz(): 
  #### TODU return arango check

  return "<h1><center>Readiness check completed</center><h1>"
  



@app.route("/")
def homepage():  
    return render_template("main-page.html", host_id=docker_short_id, boards=board_list)

  

@app.route('/db_posts')
@app.route("/db_posts/<target_post_id>")
def page_posts_from_db(target_post_id=None):  
    
    postos = db.collection('posts')
    postos = [ p for p in postos]
    postos  = sorted(postos, key=lambda posto: int(posto['_key']), reverse=False)
    
    if not target_post_id:
       target_post_id = postos[0]['_key']

    return render_template("interactive-posts.html", host_id=docker_short_id, postos=postos, target_post_id=target_post_id)

 
@app.route("/answer_post/<target_post_id>", methods=['POST'])
def answer_post(target_post_id):  
    
    postos = db.collection('posts')
    postos = [ p for p in postos]
    postos  = sorted(postos, key=lambda posto: int(posto['_key']), reverse=False)
    
    if not target_post_id:
       target_post_id = postos[0]['_key']

    return render_template("answer-post.html", target_post_id=target_post_id)


ALLOWED_EXTENSIONS = {'png', 'jpg', 'jpeg', 'gif', 'mp4', 'webm', 'webp'}
def allowed_file(filename):
    return '.' in filename and \
           filename.rsplit('.', 1)[1].lower() in ALLOWED_EXTENSIONS

@app.route('/post_to_another_post/<post_key>', methods=['POST'])
def post_to_post(post_key):
            
      
    #### TODO resize pics https://stackoverflow.com/questions/53337318/how-can-i-resize-image-with-pil-on-upload-and-serve-them-with-flask-cloudy
    #### TODO allow only imgs, videos, and gifs
    if 'file' in request.files:

        minioClient = Minio( "static.guaranteedstruggle.host" )
        bucket_name = "thread-pics"

        files = request.files.getlist("file")
        for file in files: 
            size = os.fstat(file.fileno()).st_size
            #### работает ли??
            if allowed_file(file.filename):  
                minioClient.put_object(
                    bucket_name, file.filename, file, size
                )
 
            else:
                print(f'somebody tried to put this inside minio: {file.filename} size: {size}')


    postos = db.collection('posts')

    data = request.form['send_this_text']
 
    metadata = postos.insert({
        'texto': data,
        'parent_post': f'{post_key}',
        'images': []
    }, overwrite_mode='update') 
 
    metadata = db.collection('post_parents').insert({ 
        '_from':    f'posts/{post_key}',
        '_to':      f'posts/{metadata["_key"]}'
    }, overwrite_mode='update') 
 
 
    cursor = db.aql.execute(
        """FOR ppp IN posts 
            LET children = (FOR v IN 1..9999 OUTBOUND ppp post_parents RETURN v) 
            UPDATE ppp WITH { children_num : COUNT_DISTINCT( children[*]._key )  } IN posts""" 
    ) 
    cursor = db.aql.execute(
        """FOR ppp IN posts 
            LET children = (FOR v IN 1 OUTBOUND ppp post_parents RETURN v) 
            UPDATE ppp WITH { answers_num : COUNT_DISTINCT( children[*]._key )  } IN posts""" 
    ) 
    cursor = db.aql.execute(
        """FOR ppp IN posts 
            LET children0 = (FOR v IN 1 OUTBOUND ppp post_parents RETURN v) 
            LET children = (FOR c IN children0
                SORT c._key  DESC
                RETURN c)
            UPDATE ppp WITH { answers_list : [ children[*]._key, children[*].answers_num, children[*].children_num ]  } IN posts""" 
    )  

    postos = db.collection('posts')  
    postos  = sorted(postos, key=lambda posto: int(posto['_key']), reverse=False)

    return render_template("i-posts.html", host_id=docker_short_id, postos=postos)



#### TODO websockets
#### TODO kafka
#### TODO shards 
#### TODO grpc



if __name__ == "__main__":
    app.run(debug=True, host='0.0.0.0')