import os
import random
import shutil
import subprocess
import sys
from threading import Thread
import time
import traceback
import schedule

try:
    from pyrogram import Client, filters, idle # type: ignore
    from pyrogram.types import ChatPermissions, ReplyKeyboardMarkup, InlineKeyboardMarkup, InlineKeyboardButton # type: ignore
except ModuleNotFoundError:
    print(f"Module pyrogram is not installed. Run 'pip3 install -r requirements.txt' and restart the program.", flush=True)
    sys.exit()

from modules.logging import logWrite
from modules.utils import configGet, jsonLoad, jsonSave

app = Client("duptsiaposter", bot_token=configGet("bot_token", "bot"), api_id=configGet("api_id", "bot"), api_hash=configGet("api_hash", "bot"))


def send_content():

    try:

        list_sent = jsonLoad(configGet("index", "locations"))
        list_queue = os.listdir(configGet("queue", "locations"))

        for file in list_queue:

            if not file in list_sent["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 = random.choice(list_queue)
            candidate = configGet("queue", "locations")+os.sep+candidate_file
        else:
            logWrite(f"Could not send content due to queue folder empty with allowed extensions")
            app.send_message(configGet("admin", "reports"), f"Could not send content: `Queue folder is empty or contains only unsupported or already sent files.`") # type: ignore
            return

        if ext_type == "photo": # type: ignore

            if configGet("enabled", "caption"):
                if configGet("link", "caption") != None:
                    sent = app.send_photo(configGet("channel", "posting"), candidate, caption=f"[{configGet('text', 'caption')}]({configGet('link', 'caption')})", disable_notification=configGet("silent", "posting")) # type: ignore
                else:
                    sent = app.send_photo(configGet("channel", "posting"), candidate, caption=configGet('text', 'caption'), disable_notification=configGet("silent", "posting")) # type: ignore
            else:
                sent = app.send_photo(configGet("channel", "posting"), candidate, disable_notification=configGet("silent", "posting")) # type: ignore

        elif ext_type == "video": # type: ignore

            if configGet("enabled", "caption"):
                if configGet("link", "caption") != None:
                    sent = app.send_video(configGet("channel", "posting"), candidate, caption=f"[{configGet('text', 'caption')}]({configGet('link', 'caption')})", disable_notification=configGet("silent", "posting")) # type: ignore
                else:
                    sent = app.send_video(configGet("channel", "posting"), candidate, caption=configGet('text', 'caption'), disable_notification=configGet("silent", "posting")) # type: ignore
            else:
                sent = app.send_video(configGet("channel", "posting"), candidate, disable_notification=configGet("silent", "posting")) # type: ignore

        list_sent["sent"].append(candidate_file)
        jsonSave(list_sent, configGet("index", "locations"))

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

        app.send_message(configGet("admin", "reports"), f"Posted `{candidate_file}`", disable_web_page_preview=True, reply_markup=InlineKeyboardMarkup([
            [InlineKeyboardButton("View in channel", url=sent.link)] # type: ignore
        ])) # type: ignore

    except Exception as exp:
        logWrite(f"Could not send content due to {exp}")
        app.send_message(configGet("admin", "reports"), f"Could not send content due to `{exp}`\n\nTraceback:\n```{traceback.format_exc()}```") # type: ignore


for entry in configGet("time", "posting"):
    schedule.every().day.at(entry).do(send_content)


def background_task():
    try:
        while True:
            try:
                schedule.run_pending()
                time.sleep(1)
            except:
                pass
    except Exception as exp:
        logWrite(f"Exception {exp} happened on task execution")
    except KeyboardInterrupt:
        logWrite('\nShutting down...')
    app.send_message(configGet("admin", "reports"), f"Shutting down with PID `{os.getpid()}`") # type: ignore
    os.system('kill -9 '+str(os.getpid()))

if __name__ == "__main__":

    logWrite(f'Starting with PID {os.getpid()}')

    app.start() # type: ignore
    app.send_message(configGet("admin", "reports"), f"Starting with pid `{os.getpid()}`") # type: ignore

    t = Thread(target=background_task)
    t.start()

    idle()

    app.send_message(configGet("admin", "reports"), f"Shutting down with pid `{os.getpid()}`") # type: ignore
    logWrite(f'Shutting down with PID {os.getpid()}')

    subprocess.call(f'kill -9 {os.getpid()}', shell=True) # type: ignore