#!/usr/bin/env python
import math
import sys
from os import name
from pathlib import Path
from subprocess import Popen
from typing import Dict, NoReturn

# Reddit pipeline disabled — Threads is the active source.
# from reddit.subreddit import get_subreddit_threads
from threads.threads_api import get_threads_posts
from utils import settings
from utils.cleanup import cleanup
from utils.checkpoint import run_step, save_checkpoint, load_checkpoint, clear_checkpoint, print_resume_status
from utils.console import print_markdown, print_step, print_substep
from utils.ffmpeg_install import ffmpeg_install
from utils.id import extract_id
from utils.version import checkversion
from video_creation.background import (
    chop_background,
    download_background_audio,
    download_background_video,
    get_background_config,
)
from video_creation.final_video import make_final_video
from video_creation.screenshot_downloader import get_screenshots_of_reddit_posts
from video_creation.voices import save_text_to_mp3

__VERSION__ = "3.4.0"

print(
    """
██████╗ ███████╗██████╗ ██████╗ ██╗████████╗    ██╗   ██╗██╗██████╗ ███████╗ ██████╗     ███╗   ███╗ █████╗ ██╗  ██╗███████╗██████╗
██╔══██╗██╔════╝██╔══██╗██╔══██╗██║╚══██╔══╝    ██║   ██║██║██╔══██╗██╔════╝██╔═══██╗    ████╗ ████║██╔══██╗██║ ██╔╝██╔════╝██╔══██╗
██████╔╝█████╗  ██║  ██║██║  ██║██║   ██║       ██║   ██║██║██║  ██║█████╗  ██║   ██║    ██╔████╔██║███████║█████╔╝ █████╗  ██████╔╝
██╔══██╗██╔══╝  ██║  ██║██║  ██║██║   ██║       ╚██╗ ██╔╝██║██║  ██║██╔══╝  ██║   ██║    ██║╚██╔╝██║██╔══██║██╔═██╗ ██╔══╝  ██╔══██╗
██║  ██║███████╗██████╔╝██████╔╝██║   ██║        ╚████╔╝ ██║██████╔╝███████╗╚██████╔╝    ██║ ╚═╝ ██║██║  ██║██║  ██╗███████╗██║  ██║
╚═╝  ╚═╝╚══════╝╚═════╝ ╚═════╝ ╚═╝   ╚═╝         ╚═══╝  ╚═╝╚═════╝ ╚══════╝ ╚═════╝     ╚═╝     ╚═╝╚═╝  ╚═╝╚═╝  ╚═╝╚══════╝╚═╝  ╚═╝
"""
)
print_markdown(
    "### Thanks for using this tool! Feel free to contribute to this project on GitHub! If you have any questions, feel free to join my Discord server or submit a GitHub issue. You can find solutions to many common problems in the documentation: https://reddit-video-maker-bot.netlify.app/"
)
checkversion(__VERSION__)

reddit_id: str
reddit_object: Dict[str, str | list]


def main(POST_URL=None) -> None:
    global reddit_id, reddit_object

    # Step 1: Fetch Threads post (no checkpoint — thread_id unknown yet)
    reddit_object = get_threads_posts(POST_URL)
    reddit_id = extract_id(reddit_object)
    print_substep(f"Thread ID is {reddit_id}", style="bold blue")
    save_checkpoint(reddit_id, "fetch_thread", {"result": None})
    print_resume_status(reddit_id)

    # Step 2: Generate TTS audio
    tts_result = run_step(
        reddit_id, "generate_tts",
        save_text_to_mp3, reddit_object,
    )
    length, number_of_comments = tts_result[0], tts_result[1]
    length = math.ceil(length)

    # Step 3: Take screenshots
    run_step(
        reddit_id, "take_screenshots",
        get_screenshots_of_reddit_posts, reddit_object, number_of_comments,
    )

    # Step 4: Download background video & audio
    bg_config = {
        "video": get_background_config("video"),
        "audio": get_background_config("audio"),
    }
    run_step(
        reddit_id, "download_background",
        _download_backgrounds, bg_config,
    )

    # Step 5: Chop background
    run_step(
        reddit_id, "chop_background",
        chop_background, bg_config, length, reddit_object,
    )

    # Step 6: Make final video
    run_step(
        reddit_id, "make_final_video",
        make_final_video, number_of_comments, length, reddit_object, bg_config,
    )

    # Pipeline complete — clear checkpoint
    clear_checkpoint(reddit_id)
    print_step("Pipeline completed successfully! Checkpoint cleared.")


def _download_backgrounds(bg_config):
    download_background_video(bg_config["video"])
    download_background_audio(bg_config["audio"])


def run_many(times) -> None:
    for x in range(1, times + 1):
        print_step(
            f'on the {x}{("th", "st", "nd", "rd", "th", "th", "th", "th", "th", "th")[x % 10]} iteration of {times}'
        )
        main()
        Popen("cls" if name == "nt" else "clear", shell=True).wait()


def shutdown() -> NoReturn:
    if "reddit_id" in globals():
        print_markdown("## Clearing temp files")
        cleanup(reddit_id)

    print("Exiting...")
    sys.exit()


if __name__ == "__main__":
    if sys.version_info.major != 3 or sys.version_info.minor not in [10, 11, 12]:
        print(
            "Hey! Congratulations, you've made it so far (which is pretty rare with no Python 3.10). Unfortunately, this program only works on Python 3.10. Please install Python 3.10 and try again."
        )
        sys.exit()
    ffmpeg_install()
    directory = Path().absolute()
    config = settings.check_toml(
        f"{directory}/utils/.config.template.toml", f"{directory}/config.toml"
    )
    config is False and sys.exit()

    if (
        not settings.config["settings"]["tts"]["tiktok_sessionid"]
        or settings.config["settings"]["tts"]["tiktok_sessionid"] == ""
    ) and config["settings"]["tts"]["voice_choice"] == "tiktok":
        print_substep(
            "TikTok voice requires a sessionid! Check our documentation on how to obtain one.",
            "bold red",
        )
        sys.exit()
    try:
        threads_post_id = (
            config.get("threads", {}).get("thread", {}).get("post_id", "")
            if isinstance(config.get("threads", {}), dict) else ""
        )
        if threads_post_id:
            for index, post_id in enumerate(threads_post_id.split("+")):
                index += 1
                print_step(
                    f'on the {index}{("st" if index % 10 == 1 else ("nd" if index % 10 == 2 else ("rd" if index % 10 == 3 else "th")))} post of {len(threads_post_id.split("+"))}'
                )
                main(post_id)
                Popen("cls" if name == "nt" else "clear", shell=True).wait()
        elif config["settings"]["times_to_run"]:
            run_many(config["settings"]["times_to_run"])
        else:
            main()
    except KeyboardInterrupt:
        shutdown()
    except Exception as err:
        config["settings"]["tts"]["tiktok_sessionid"] = "REDACTED"
        config["settings"]["tts"]["elevenlabs_api_key"] = "REDACTED"
        config["settings"]["tts"]["openai_api_key"] = "REDACTED"
        print_step(
            f"Sorry, something went wrong with this version! Try again, and feel free to report this issue at GitHub or the Discord community.\n"
            f"Version: {__VERSION__} \n"
            f"Error: {err} \n"
            f'Config: {config["settings"]}'
        )
        raise err