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

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

# Args =====================================================================================================================================
if "--move-sent" in sys.argv:
    for entry in jsonLoad(configGet("index", "locations"))["sent"]:
        try:
            shutil.move(configGet("queue", "locations")+os.sep+entry, configGet("sent", "locations")+os.sep+entry)
        except FileNotFoundError:
            logWrite(f"File '{entry}' is already moved or does not exist")
        except Exception as exp:
            logWrite(f"Could not move sent file '{entry}' to '{configGet('sent', 'locations')}' due to {exp}")
    logWrite(f"Moved all sent files to the sent folder")

if "--cleanup" in sys.argv:
    if "--confirm" in sys.argv:
        index = jsonLoad(configGet("index", "locations"))
        for entry in index["sent"]:
            try:
                try:
                    os.remove(configGet("queue", "locations")+os.sep+entry)
                except FileNotFoundError:
                    pass
                try:
                    os.remove(configGet("sent", "locations")+os.sep+entry)
                except FileNotFoundError:
                    pass
            except Exception as exp:
                logWrite(f"Could not remove '{entry}' due to {exp}")
            jsonSave(index, jsonLoad(configGet("index", "locations")))
        logWrite(f"Performed cleanup of the sent files")
    else:
        logWrite(f"Requested cleanup of sent files but not authorized. Please pass '--confirm' to perform that")

if "--cleanup-index" in sys.argv:
    if "--confirm" in sys.argv:
        index = jsonLoad(configGet("index", "locations"))
        index["sent"] = []
        jsonSave(index, jsonLoad(configGet("index", "locations")))
        logWrite(f"Performed cleanup of sent files index")
    else:
        logWrite(f"Requested cleanup of sent files index but not authorized. Please pass '--confirm' to perform that")

if "--norun" in sys.argv:
    logWrite("Argument --norun passed, not running the main script")
    sys.exit()
#===========================================================================================================================================


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


pid = os.getpid()
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")
            if configGet("error", "reports"):
                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)

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


@app.on_message(~ filters.scheduled & filters.command(["kill", "die", "reboot"], prefixes=["", "/"]))
def kill(app, msg):

    if msg.from_user.id == configGet("admin", "reports"):
        msg.reply_text(f"Shutting down bot with pid `{pid}`")
        os.system('kill -9 '+str(pid))


# Submission =====================================================================================================================================
def subLimit(user):
    submit = jsonLoad(configGet("submit", "locations"))
    submit[str(user.id)] = time.time()
    jsonSave(submit, configGet("submit", "locations"))

def subLimited(user):
    if user.id == configGet("admin", "reports"):
        return False
    else:
        submit = jsonLoad(configGet("submit", "locations"))
        if str(user.id) in submit:
            if (time.time - submit[str(user.id)]) > configGet("limit", "submission"):
                return True
            else:
                return False
        else:
            return False

@app.on_message(filters.photo | filters.video | filters.animation)
def get_submission(_, msg):
    if not subLimited(msg.from_user):
        subLimit(msg.from_user)
    else:
        msg.reply_text(f'You can only submit 1 media per {configGet("limit", "submission")} seconds')
#===========================================================================================================================================


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 `{pid}`") # type: ignore
    os.system('kill -9 '+str(pid))

if __name__ == "__main__":

    logWrite(f'Starting with PID {pid}')

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

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

    app.set_bot_commands([ # type: ignore
        BotCommand("reboot", "Reboot the bot"),
        ],
        scope=BotCommandScopeChat(chat_id=configGet("admin", "reports")))

    idle()

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

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