import json
import os
import time
from os.path import exists

from moviepy.editor import (
    VideoFileClip,
    AudioFileClip,
    ImageClip,
    concatenate_videoclips,
    concatenate_audioclips,
    CompositeAudioClip,
    CompositeVideoClip,
)
from moviepy.video.io import ffmpeg_tools

from reddit import subreddit
from utils.cleanup import cleanup
from utils.console import print_step, print_substep

W, H = 1080, 1920


def make_final_video(number_of_clips, length):
    print_step("Creating the final video 🎥")
    VideoFileClip.reW = lambda clip: clip.resize(width=W)
    VideoFileClip.reH = lambda clip: clip.resize(width=H)
    opacity = os.getenv("OPACITY")
    background_clip = (
        VideoFileClip("assets/temp/background.mp4")
        .without_audio()
        .resize(height=H)
        .crop(x1=1166.6, y1=0, x2=2246.6, y2=1920)
    )
    # Gather all audio clips
    audio_clips = []
    for i in range(0, number_of_clips):
        audio_clips.append(AudioFileClip(f"assets/temp/mp3/{i}.mp3"))
    audio_clips.insert(0, AudioFileClip(f"assets/temp/mp3/title.mp3"))
    audio_concat = concatenate_audioclips(audio_clips)
    audio_composite = CompositeAudioClip([audio_concat])

    # Gather all images
    image_clips = []
    for i in range(0, number_of_clips):
        if (
            opacity is None or float(opacity) >= 1
        ):  # opacity not set or is set to one OR MORE
            image_clips.append(
                ImageClip(f"assets/temp/png/comment_{i}.png")
                .set_duration(audio_clips[i + 1].duration)
                .set_position("center")
                .resize(width=W - 100),
            )
        else:
            image_clips.append(
                ImageClip(f"assets/temp/png/comment_{i}.png")
                .set_duration(audio_clips[i + 1].duration)
                .set_position("center")
                .resize(width=W - 100)
                .set_opacity(float(opacity)),
            )
    if (
        opacity is None or float(opacity) >= 1
    ):  # opacity not set or is set to one OR MORE
        image_clips.insert(
            0,
            ImageClip(f"assets/temp/png/title.png")
            .set_duration(audio_clips[0].duration)
            .set_position("center")
            .resize(width=W - 100),
        )
    else:
        image_clips.insert(
            0,
            ImageClip(f"assets/temp/png/title.png")
            .set_duration(audio_clips[0].duration)
            .set_position("center")
            .resize(width=W - 100)
            .set_opacity(float(opacity)),
        )
    image_concat = concatenate_videoclips(image_clips).set_position(
        ("center", "center")
    )
    image_concat.audio = audio_composite
    final = CompositeVideoClip([background_clip, image_concat])

    def get_video_title() -> str:
        title = os.getenv("VIDEO_TITLE") or "final_video"
        if len(title) <= 35:
            return title
        else:
            return title[0:30] + "..."

    filename = f"{get_video_title()}.mp4"

    def save_data():
        with open("./video_creation/data/videos.json", "r+") as raw_vids:
            done_vids = json.load(raw_vids)
            if str(subreddit.submission.id) in [video["id"] for video in done_vids]:
                return  # video already done but was specified to continue anyway in the .env file
            payload = {
                "id": str(os.getenv("VIDEO_ID")),
                "time": str(int(time.time())),
                "background_credit": str(os.getenv("background_credit")),
                "reddit_title": str(os.getenv("VIDEO_TITLE")),
                "filename": filename,
            }
            done_vids.append(payload)
            raw_vids.seek(0)
            json.dump(done_vids, raw_vids, ensure_ascii=False, indent=4)

    save_data()
    if not exists("./results"):
        print_substep("the results folder didn't exist so I made it")
        os.mkdir("./results")

    final.write_videofile(
        "assets/temp/temp.mp4", fps=30, audio_codec="aac", audio_bitrate="192k"
    )
    ffmpeg_tools.ffmpeg_extract_subclip(
        "assets/temp/temp.mp4", 0, length, targetname=f"results/{filename}"
    )
    # os.remove("assets/temp/temp.mp4")

    print_step("Removing temporary files 🗑")
    cleanups = cleanup()
    print_substep(f"Removed {cleanups} temporary files 🗑")
    print_substep(f"See result in the results folder!")

    print_step(
        f"Reddit title: {os.getenv('VIDEO_TITLE')} \n Background Credit: {os.getenv('background_credit')}"
    )