from datetime import datetime, timezone
from os import makedirs, path
from shutil import copyfileobj, rmtree
from traceback import format_exc
from uuid import uuid4
from PIL import Image

from bson import ObjectId
from classes.poster_client import PosterClient
from requests import get

from modules.api_client import authorize, move_pic, random_pic
from modules.database import col_sent, col_submitted
from modules.logger import logWrite
from modules.utils import configGet, locale


async def send_content(app: PosterClient):

    try:

        try:
            token = await authorize()
        except ValueError:
            await app.send_message(configGet("admin"), locale("api_creds_invalid", "message", locale=configGet("locale")))
            return

        try:
            pic = await random_pic()
        except KeyError:
            logWrite(locale("post_empty", "console", locale=configGet("locale")))
            if configGet("error", "reports"):
                await app.send_message(configGet("admin"), locale("api_queue_empty", "message", locale=configGet("locale")))
            return
        except ValueError:
            if configGet("error", "reports"):
                await app.send_message(configGet("admin"), locale("api_queue_error", "message", locale=configGet("locale")))
            return
        
        response = get(f'{configGet("address", "posting", "api")}/photos/{pic[0]}', headers={"Authorization": f"Bearer {token}"}, stream=True)

        if response.status_code != 200:
            logWrite(locale("post_invalid_pic", "console", locale=configGet("locale")).format(str(response.json())))
            if configGet("error", "reports"):
                await app.send_message(configGet("admin"), locale("post_invalid_pic", "message", locale=configGet("locale")).format(response.json()))

        tmp_dir = str(uuid4())

        makedirs(path.join(configGet("tmp", "locations"), tmp_dir), exist_ok=True)

        tmp_path = path.join(tmp_dir, pic[1])

        with open(path.join(configGet("tmp", "locations"), tmp_path), 'wb') as out_file:
            copyfileobj(response.raw, out_file)

        logWrite(f'Candidate {pic[1]} ({pic[0]}) is {path.getsize(path.join(configGet("tmp", "locations"), tmp_path))} bytes big', debug=True)

        if path.getsize(path.join(configGet("tmp", "locations"), tmp_path)) > 5242880:
            image = Image.open(path.join(configGet("tmp", "locations"), tmp_path))
            width, height = image.size
            image = image.resize((int(width/2), int(height/2)), Image.ANTIALIAS)
            if tmp_path.lower().endswith(".jpeg") or tmp_path.lower().endswith(".jpg"):
                image.save(path.join(configGet("tmp", "locations"), tmp_path), "JPEG", optimize=True, quality=50)
            elif tmp_path.lower().endswith(".png"):
                image.save(path.join(configGet("tmp", "locations"), tmp_path), "PNG", optimize=True, compress_level=8)
            image.close()
        
        if path.getsize(path.join(configGet("tmp", "locations"), tmp_path)) > 5242880:
            rmtree(path.join(configGet("tmp", "locations"), tmp_dir), ignore_errors=True)
            raise BytesWarning

        del response

        submitted_caption = col_submitted.find_one( {"image": ObjectId(pic[0])} )

        if submitted_caption is not None:
            caption = submitted_caption["caption"].strip()
        else:
            caption = ""

        if configGet("enabled", "caption"):
            if configGet("link", "caption") != None:
                caption = f"{caption}\n\n[{configGet('text', 'caption')}]({configGet('link', 'caption')})"
            else:
                caption = f"{caption}\n\n{configGet('text', 'caption')}"
        else:
            caption = caption

        try:
            sent = await app.send_photo(configGet("channel", "posting"), path.join(configGet("tmp", "locations"), tmp_path), caption=caption, disable_notification=configGet("silent", "posting"))
        except Exception as exp:
            logWrite(f"Could not send image {pic[1]} ({pic[0]}) due to {exp}")
            if configGet("error", "reports"):
                await app.send_message(configGet("admin"), locale("post_exception", "message", locale=configGet("locale")).format(exp, format_exc()))
            # rmtree(path.join(configGet("tmp", "locations"), tmp_dir), ignore_errors=True)
            return

        col_sent.insert_one(
            {
                "date": datetime.now(tz=timezone.utc),
                "image": pic[0],
                "filename": pic[1],
                "channel": configGet("channel", "posting"),
                "caption": None if submitted_caption is None else submitted_caption["caption"].strip()
            }
        )

        await move_pic(pic[0])

        rmtree(path.join(configGet("tmp", "locations"), tmp_dir), ignore_errors=True)

        logWrite(locale("post_sent", "console", locale=configGet("locale")).format(pic[0], str(configGet("channel", "posting")), caption.replace("\n", "%n"), str(configGet("silent", "posting"))))

    except Exception as exp:
        logWrite(locale("post_exception", "console", locale=configGet("locale")).format(str(exp), format_exc()))
        if configGet("error", "reports"):
            await app.send_message(configGet("admin"), locale("post_exception", "message", locale=configGet("locale")).format(exp, format_exc()))
        try:
            rmtree(path.join(configGet("tmp", "locations"), tmp_dir), ignore_errors=True)
        except:
            pass


# async def send_content_old(app: PosterClient):

#     # Send post to channel
#     try:

#         index = jsonLoad(configGet("index", "locations"))

#         if configGet("api_based", "mode"):

#             try:
#                 pic = random_pic()
#             except:
#                 logWrite(locale("post_empty", "console", locale=configGet("locale")))
#                 if configGet("error", "reports"):
#                     await app.send_message(configGet("admin"), locale("post_empty", "message", locale=configGet("locale")))
#                 return

#             token = authorize()

#             response = get(f'{configGet("address", "posting", "api")}/photos/{pic[0]}', headers={"Authorization": f"Bearer {token}"}, stream=True)

#             with open(configGet("tmp", "locations")+sep+pic[0]+".jpg", 'wb') as out_file:
#                 copyfileobj(response.raw, out_file)

#             del response

#             candidate = configGet("tmp", "locations")+sep+pic[0]+".jpg"
#             candidate_file = pic[1]
#             ext_type = "photo"

#         if not configGet("api_based", "mode"):

#             list_queue = listdir(configGet("queue", "locations"))

#             for file in list_queue:

#                 if not file in index["sent"]:

#                     ext_match = False

#                     for ext in configGet("photo", "posting", "extensions"):
#                         if file.endswith(ext):
#                             ext_match = True
#                             ext_type = "photo"
#                             break

#                     for ext in configGet("video", "posting", "extensions"):
#                         if file.endswith(ext):
#                             ext_match = True
#                             ext_type = "video"
#                             break

#                     if not ext_match:
#                         list_queue.remove(file)

#                 else:
#                     list_queue.remove(file)

#             if len(list_queue) > 0:
#                 candidate_file = choice(list_queue)
#                 candidate = configGet("queue", "locations")+sep+candidate_file
#             else:
#                 logWrite(locale("post_empty", "console", locale=configGet("locale")))
#                 if configGet("error", "reports"):
#                     await app.send_message(configGet("admin"), locale("post_empty", "message", locale=configGet("locale")))
#                 return

#         if candidate_file in index["captions"]:
#             caption = index["captions"][candidate_file]
#         else:
#             caption = ""

#         if configGet("enabled", "caption"):
#             if configGet("link", "caption") != None:
#                 caption = f"{caption}\n\n[{configGet('text', 'caption')}]({configGet('link', 'caption')})"
#             else:
#                 caption = f"{caption}\n\n{configGet('text', 'caption')}"
#         else:
#             caption = caption

#         if ext_type == "photo":

#             if configGet("enabled", "caption"):
#                 if configGet("link", "caption") != None:
#                     sent = await app.send_photo(configGet("channel", "posting"), candidate, caption=caption, disable_notification=configGet("silent", "posting"))
#                 else:
#                     sent = await app.send_photo(configGet("channel", "posting"), candidate, caption=caption, disable_notification=configGet("silent", "posting"))
#             else:
#                 sent = await app.send_photo(configGet("channel", "posting"), candidate, caption=caption, disable_notification=configGet("silent", "posting"))

#         elif ext_type == "video":

#             if configGet("enabled", "caption"):
#                 if configGet("link", "caption") != None:
#                     sent = await app.send_video(configGet("channel", "posting"), candidate, caption=caption, disable_notification=configGet("silent", "posting"))
#                 else:
#                     sent = await app.send_video(configGet("channel", "posting"), candidate, caption=caption, disable_notification=configGet("silent", "posting"))
#             else:
#                 sent = await app.send_video(configGet("channel", "posting"), candidate, caption=caption, disable_notification=configGet("silent", "posting"))

#         else:
#             return

#         if configGet("api_based", "mode"):
#             remove(configGet("tmp", "locations")+sep+pic[0]+".jpg")
#             move_pic(pic[0])

#         index["sent"].append(candidate_file)
#         index["last_id"] = sent.id

#         jsonSave(index, configGet("index", "locations"))

#         if configGet("move_sent", "posting"):
#             move(candidate, configGet("sent", "locations")+sep+candidate_file)

#         logWrite(locale("post_sent", "console", locale=configGet("locale")).format(candidate, ext_type, str(configGet("channel", "posting")), caption.replace("\n", "%n"), str(configGet("silent", "posting"))))

#         if configGet("sent", "reports"):
#             await app.send_message(configGet("admin"), f"Posted `{candidate_file}`", disable_web_page_preview=True, reply_markup=InlineKeyboardMarkup([
#                 [InlineKeyboardButton(locale("post_view", "button", locale=configGet("locale")), url=sent.link)]
#             ]))

#     except Exception as exp:
#         logWrite(locale("post_exception", "console", locale=configGet("locale")).format(str(exp), format_exc()))
#         if configGet("error", "reports"):
#             await app.send_message(configGet("admin"), locale("post_exception", "message", locale=configGet("locale")).format(exp, format_exc()))
#         pass


    # Work in progress
    # Check last posts forwards
    # check_forwards(app)