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import os
import uuid
import moviepy.editor as mp
from PIL import Image
import gradio as gr

# ----------------------------------
# ๊ณตํ†ต์ ์œผ๋กœ ์‚ฌ์šฉํ•  ๋กœ๊ทธ ๋ฆฌ์ŠคํŠธ
# ----------------------------------
global_logs = []

def add_log(message: str):
    """
    ๋กœ๊ทธ ๋ฉ”์‹œ์ง€๋ฅผ ์ €์žฅํ•˜๋Š” ํ•จ์ˆ˜
    """
    global_logs.append(message)
    print(message)

def parse_time_to_seconds(time_str: str):
    """
    ์‹œ:๋ถ„:์ดˆ ํ˜•ํƒœ์˜ ๋ฌธ์ž์—ด(์˜ˆ: '00:00:10' ๋˜๋Š” '00:01:02')์„ ์ดˆ ๋‹จ์œ„(float)๋กœ ๋ณ€ํ™˜
    """
    try:
        h, m, s = time_str.split(":")
        total_seconds = int(h) * 3600 + int(m) * 60 + float(s)
        return total_seconds
    except Exception:
        return 0.0

def generate_thumbnail(video_clip, time_point):
    """
    ํŠน์ • ์‹œ์ ์˜ ํ”„๋ ˆ์ž„์„ ์ธ๋„ค์ผ๋กœ ์ƒ์„ฑํ•˜์—ฌ PIL.Image๋กœ ๋ฐ˜ํ™˜
    """
    try:
        frame = video_clip.get_frame(time_point)
        thumbnail_img = Image.fromarray(frame)
        return thumbnail_img
    except Exception as e:
        add_log(f"[ERROR] ์ธ๋„ค์ผ ์ƒ์„ฑ ์‹คํŒจ: {e}")
        frame = video_clip.get_frame(0)
        thumbnail_img = Image.fromarray(frame)
        return thumbnail_img

def adjust_aspect_ratio(clip, option):
    """
    ์˜์ƒ ํด๋ฆฝ์„ ์„ ํƒํ•œ ํ”Œ๋žซํผ์˜ ๊ถŒ์žฅ ๋น„์œจ๋กœ ์ค‘์•™ ํฌ๋กญํ•˜์—ฌ ์กฐ์ •ํ•ฉ๋‹ˆ๋‹ค.
    """
    if option == "์›๋ณธ ์œ ์ง€":
        return clip

    if option == "์œ ํŠœ๋ธŒ (16:9)":
        target_ratio = 16 / 9
    elif option == "์‡ผ์ธ /๋ฆด์Šค (9:16)":
        target_ratio = 9 / 16
    elif option == "์ •์‚ฌ๊ฐํ˜• (1:1)":
        target_ratio = 1.0
    elif option == "์ธ์Šคํƒ€๊ทธ๋žจ (4:5)":
        target_ratio = 4 / 5
    elif option == "ํด๋ž˜์‹ (4:3)":
        target_ratio = 4 / 3
    else:
        return clip

    width, height = clip.size
    current_ratio = width / height

    # ์˜์ƒ์ด ๋„ˆ๋ฌด ๋„“๋‹ค๋ฉด ๊ฐ€๋กœ๋ฅผ, ๋„ˆ๋ฌด ๋†’๋‹ค๋ฉด ์„ธ๋กœ๋ฅผ ํฌ๋กญ
    if current_ratio > target_ratio:
        new_width = int(height * target_ratio)
        new_height = height
    else:
        new_width = width
        new_height = int(width / target_ratio)

    return clip.crop(x_center=width / 2, y_center=height / 2, width=new_width, height=new_height)

def process_video(video,
                  start_time_str,
                  end_time_str,
                  platform_option,    # ํ”Œ๋žซํผ๋ณ„ ๋น„์œจ ์„ ํƒ (Radio)
                  frame_rate_factor,  # ํ”„๋ ˆ์ž„ ๋ ˆ์ดํŠธ ์ถ•์†Œ ๋ฐฐ์œจ (1.0์ด๋ฉด ์›๋ณธ)
                  speed_factor,
                  repeat_count,
                  resolution_scale):  # ์ถœ๋ ฅ ํ•ด์ƒ๋„ ์ถ•์†Œ ๋น„์œจ (1.0์ด๋ฉด ์›๋ณธ)
    """
    ๋™์˜์ƒ์„ GIF๋กœ ๋ณ€ํ™˜ํ•˜๋Š” ํ•จ์ˆ˜
    """
    global global_logs
    global_logs = []  # ํ˜ธ์ถœ ์‹œ๋งˆ๋‹ค ๋กœ๊ทธ ์ดˆ๊ธฐํ™”

    add_log("[LOG 1] ๋น„๋””์˜ค ์—…๋กœ๋“œ ๋ฐ ์ฒ˜๋ฆฌ ์‹œ์ž‘")

    # video ํŒŒ๋ผ๋ฏธํ„ฐ์—์„œ ํŒŒ์ผ ๊ฒฝ๋กœ ์ถ”์ถœ (Gradio์—์„œ ๋ฐ˜ํ™˜ํ•˜๋Š” ๊ฐ’์ด ๋ฌธ์ž์—ด์ผ ์ˆ˜ ์žˆ์Œ)
    video_path = video if isinstance(video, str) else video.name

    add_log("[LOG 2] ๋น„๋””์˜ค ๋กœ๋“œ ์ค‘...")
    try:
        input_video = mp.VideoFileClip(video_path)
    except Exception as e:
        add_log(f"[ERROR] ๋น„๋””์˜ค ๋กœ๋“œ ์‹คํŒจ: {e}")
        return None, None, "\n".join(global_logs)

    duration = input_video.duration
    add_log(f"[LOG 3] ์—…๋กœ๋“œ๋œ ์˜์ƒ์˜ ์žฌ์ƒ์‹œ๊ฐ„: {duration:.2f}์ดˆ")

    add_log("[LOG 4] ์‹œ์ž‘/๋ ์‹œ๊ฐ„ ํŒŒ์‹ฑ ์ค‘...")
    start_sec = parse_time_to_seconds(start_time_str)
    end_sec = parse_time_to_seconds(end_time_str)

    # ์‹œ๊ฐ„ ๋ฒ”์œ„ ๋ณด์ •
    if start_sec < 0:
        start_sec = 0
    if end_sec <= 0 or end_sec > duration:
        end_sec = duration
    if start_sec >= end_sec:
        start_sec = 0
        end_sec = duration

    add_log(f"[LOG 5] ์ ์šฉ๋œ ์‹œ์ž‘ ์‹œ๊ฐ„: {start_sec}์ดˆ, ์ข…๋ฃŒ ์‹œ๊ฐ„: {end_sec}์ดˆ")

    add_log("[LOG 6] ์˜์ƒ ์ž๋ฅด๊ธฐ ์ž‘์—… ์ง„ํ–‰...")
    clip = input_video.subclip(start_sec, end_sec)

    # ํ”Œ๋žซํผ๋ณ„ ํ•ด์ƒ๋„(๋น„์œจ) ์กฐ์ •
    add_log(f"[LOG 7] ํ”Œ๋žซํผ ๋น„์œจ ์กฐ์ •: {platform_option}")
    clip = adjust_aspect_ratio(clip, platform_option)

    # ์ถœ๋ ฅ ํ•ด์ƒ๋„ ์ถ•์†Œ ์˜ต์…˜ ์ ์šฉ
    if abs(resolution_scale - 1.0) > 1e-3:
        add_log(f"[LOG 7-1] ์ถœ๋ ฅ ํ•ด์ƒ๋„ ์ถ•์†Œ: {resolution_scale*100:.0f}%")
        clip = clip.resize(resolution_scale)

    # ์žฌ์ƒ์†๋„ ์กฐ์ ˆ: speedx๋ฅผ ์ ์šฉํ•˜๋ฉด clip.duration์€ ์ค„์–ด๋“ค์ง€๋งŒ fps๋Š” ๊ทธ๋Œ€๋กœ ์œ ์ง€๋จ.
    if abs(speed_factor - 1.0) > 1e-3:
        add_log(f"[LOG 8] ์žฌ์ƒ์†๋„ {speed_factor}๋ฐฐ๋กœ ์กฐ์ ˆ ์ค‘...")
        clip = clip.fx(mp.vfx.speedx, speed_factor)

    # FPS ์กฐ์ ˆ: ์ตœ์ข… ์ถœ๋ ฅ FPS๋Š” ํ”„๋ ˆ์ž„ ๋ ˆ์ดํŠธ ๋ฐฐ์œจ๋งŒ ๋ฐ˜์˜ (speed_factor๋Š” ์ด๋ฏธ duration์— ๋ฐ˜์˜๋จ)
    original_fps = clip.fps
    target_fps = original_fps * frame_rate_factor
    add_log(f"[LOG 9] ์ตœ์ข… ์ถœ๋ ฅ FPS: {target_fps:.2f} (์›๋ณธ FPS: {original_fps})")
    clip = clip.set_fps(target_fps)

    # ๋ฐ˜๋ณต ํšŸ์ˆ˜: 0์ด๋ฉด ๋ฌดํ•œ๋ฐ˜๋ณต, 1~10์ด๋ฉด ํ•ด๋‹น ํšŸ์ˆ˜๋งŒํผ ๋ฐ˜๋ณต (GIF์˜ loop ๋ฉ”ํƒ€๋ฐ์ดํ„ฐ ์‚ฌ์šฉ)
    loop_param = 0 if int(repeat_count) == 0 else int(repeat_count)
    add_log(f"[LOG 10] GIF ๋ฐ˜๋ณต ํšŸ์ˆ˜ ์„ค์ •: {repeat_count} (0์ด๋ฉด ๋ฌดํ•œ๋ฐ˜๋ณต, ์ ์šฉ๊ฐ’: {loop_param})")
    
    add_log("[LOG 11] GIF ์ƒ์„ฑ ์ค‘...")
    output_filename = f"temp_{uuid.uuid4().hex}.gif"
    try:
        # MoviePy์˜ write_gif ๋Œ€์‹  ์ง์ ‘ imageio๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ GIF ์ƒ์„ฑ
        import imageio
        
        # ํ”„๋ ˆ์ž„ ์ถ”์ถœ
        frames = []
        for t in range(int(clip.duration * target_fps)):
            frame_time = t / target_fps
            frame = clip.get_frame(frame_time)
            frames.append(frame)
        
        # imageio๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ GIF ์ €์žฅ (loop ํŒŒ๋ผ๋ฏธํ„ฐ ์ ์šฉ)
        imageio.mimsave(
            output_filename,
            frames,
            fps=target_fps,
            loop=loop_param  # ์—ฌ๊ธฐ์„œ ๋ฐ˜๋ณต ํšŸ์ˆ˜ ์„ค์ •
        )
        
        add_log("[LOG 12] GIF ์ƒ์„ฑ ์™„๋ฃŒ! ํŒŒ์ผ๋ช…: " + output_filename)
    except Exception as e:
        add_log(f"[ERROR] GIF ์ƒ์„ฑ ์‹คํŒจ: {e}")
        return None, None, "\n".join(global_logs)

    # ๋ฏธ๋ฆฌ๋ณด๊ธฐ: ์™„์„ฑ๋œ GIF ํŒŒ์ผ ๊ฒฝ๋กœ๋ฅผ ๊ทธ๋Œ€๋กœ ๋ฐ˜ํ™˜ํ•˜๋ฉด gr.Image์—์„œ ์• ๋‹ˆ๋ฉ”์ด์…˜ ๋ฏธ๋ฆฌ๋ณด๊ธฐ๊ฐ€ ๊ฐ€๋Šฅํ•ฉ๋‹ˆ๋‹ค.
    return output_filename, output_filename, "\n".join(global_logs)

def update_thumbnails(video, start_time_str, end_time_str):
    """
    ์‹œ์ž‘/๋ ์ธ๋„ค์ผ์„ ์—…๋ฐ์ดํŠธํ•˜๋Š” ํ•จ์ˆ˜
    """
    video_path = video if isinstance(video, str) else video.name

    try:
        input_video = mp.VideoFileClip(video_path)
    except Exception as e:
        add_log(f"[ERROR] ๋น„๋””์˜ค ๋กœ๋“œ ์‹คํŒจ: {e}")
        return None, None

    duration = input_video.duration

    start_sec = parse_time_to_seconds(start_time_str)
    end_sec = parse_time_to_seconds(end_time_str)
    if start_sec < 0:
        start_sec = 0
    if end_sec <= 0 or end_sec > duration:
        end_sec = duration
    if start_sec >= end_sec:
        start_sec = 0
        end_sec = duration

    start_thumb = generate_thumbnail(input_video, start_sec)
    end_thumb = generate_thumbnail(input_video, end_sec)

    return start_thumb, end_thumb

# ------------------------------
# Gradio ์ธํ„ฐํŽ˜์ด์Šค ๊ตฌ์„ฑ (Blocks)
# ------------------------------
with gr.Blocks() as demo:
    gr.Markdown("## ๋™์˜์ƒ์„ GIF๋กœ ๋ณ€ํ™˜ํ•˜๊ธฐ ๋ฐ๋ชจ")

    with gr.Tab("GIF ๋ณ€ํ™˜"):
        # ๋™์˜์ƒ ์—…๋กœ๋“œ
        video_input = gr.Video(label="๋™์˜์ƒ ์—…๋กœ๋“œ")
        # ์‹œ์ž‘/๋ ์‹œ๊ฐ„ ์ž…๋ ฅ
        start_time = gr.Textbox(label="์‹œ์ž‘ ์‹œ๊ฐ„ (์˜ˆ: 00:00:05)", value="00:00:00")
        end_time = gr.Textbox(label="์ข…๋ฃŒ ์‹œ๊ฐ„ (์˜ˆ: 00:00:10)", value="00:00:05")
        # ์ธ๋„ค์ผ ๋ฏธ๋ฆฌ๋ณด๊ธฐ
        start_thumb_output = gr.Image(label="์‹œ์ž‘ ์ธ๋„ค์ผ ๋ฏธ๋ฆฌ๋ณด๊ธฐ")
        end_thumb_output = gr.Image(label="์ข…๋ฃŒ ์ธ๋„ค์ผ ๋ฏธ๋ฆฌ๋ณด๊ธฐ")
        # ํ”Œ๋žซํผ๋ณ„ ํ•ด์ƒ๋„(๋น„์œจ) ์„ ํƒ (Radio ๋ฒ„ํŠผ)
        platform_option = gr.Radio(
            label="ํ•ด์ƒ๋„/๋น„์œจ ์„ ํƒ",
            choices=["์›๋ณธ ์œ ์ง€", "์œ ํŠœ๋ธŒ (16:9)", "์‡ผ์ธ /๋ฆด์Šค (9:16)", "์ •์‚ฌ๊ฐํ˜• (1:1)", "์ธ์Šคํƒ€๊ทธ๋žจ (4:5)", "ํด๋ž˜์‹ (4:3)"],
            value="์›๋ณธ ์œ ์ง€"
        )
        # ์ถœ๋ ฅ ํ•ด์ƒ๋„ ์ถ•์†Œ ์˜ต์…˜ (1.0์ด๋ฉด ์›๋ณธ, 0.1 ~ 1.0 ๋ฒ”์œ„)
        resolution_scale_slider = gr.Slider(label="์ถœ๋ ฅ ํ•ด์ƒ๋„ ์ถ•์†Œ ๋น„์œจ (0.1 ~ 1.0)", 
                                            minimum=0.1, maximum=1.0, step=0.1, value=1.0)
        # ํ”„๋ ˆ์ž„ ๋ ˆ์ดํŠธ, ์žฌ์ƒ ์†๋„, ๋ฐ˜๋ณต ํšŸ์ˆ˜ ์กฐ์ ˆ
        frame_rate_slider = gr.Slider(label="ํ”„๋ ˆ์ž„ ๋ ˆ์ดํŠธ ๋ฐฐ์œจ ์กฐ์ ˆ (0.1 ~ 1.0)", 
                                      minimum=0.1, maximum=1.0, step=0.1, value=1.0)
        speed_slider = gr.Slider(label="์žฌ์ƒ ์†๋„ ์กฐ์ ˆ (0.5 ~ 5.0)", 
                                 minimum=0.5, maximum=5.0, step=0.1, value=1.0)
        repeat_slider = gr.Slider(label="GIF ๋ฐ˜๋ณต ํšŸ์ˆ˜ (0: ๋ฌดํ•œ๋ฐ˜๋ณต, 1~10: ๋ฐ˜๋ณต ํšŸ์ˆ˜)", 
                                  minimum=0, maximum=10, step=1, value=0)
        # GIF ์ƒ์„ฑ ๋ฒ„ํŠผ ๋ฐ ๊ฒฐ๊ณผ ์ถœ๋ ฅ
        generate_button = gr.Button("GIF ์ƒ์„ฑํ•˜๊ธฐ")
        gif_preview_output = gr.Image(label="์™„์„ฑ๋œ GIF ๋ฏธ๋ฆฌ๋ณด๊ธฐ")
        download_output = gr.File(label="GIF ๋‹ค์šด๋กœ๋“œ ๋งํฌ")
        logs_output = gr.Textbox(label="๋กœ๊ทธ ์ถœ๋ ฅ", lines=10)

        # ์ธ๋„ค์ผ ์—…๋ฐ์ดํŠธ ์ด๋ฒคํŠธ (๋™์˜์ƒ ๋˜๋Š” ์‹œ๊ฐ„ ์ž…๋ ฅ ๋ณ€๊ฒฝ ์‹œ)
        start_time.change(fn=update_thumbnails,
                          inputs=[video_input, start_time, end_time],
                          outputs=[start_thumb_output, end_thumb_output])
        end_time.change(fn=update_thumbnails,
                        inputs=[video_input, start_time, end_time],
                        outputs=[start_thumb_output, end_thumb_output])
        video_input.change(fn=update_thumbnails,
                           inputs=[video_input, start_time, end_time],
                           outputs=[start_thumb_output, end_thumb_output])
        # GIF ์ƒ์„ฑ ๋ฒ„ํŠผ ์ด๋ฒคํŠธ
        generate_button.click(
            fn=process_video,
            inputs=[
                video_input,         # ๋™์˜์ƒ ์—…๋กœ๋“œ
                start_time,          # ์‹œ์ž‘ ์‹œ๊ฐ„
                end_time,            # ์ข…๋ฃŒ ์‹œ๊ฐ„
                platform_option,     # ํ”Œ๋žซํผ๋ณ„ ๋น„์œจ
                frame_rate_slider,   # ํ”„๋ ˆ์ž„ ๋ ˆ์ดํŠธ ๋ฐฐ์œจ
                speed_slider,        # ์žฌ์ƒ ์†๋„
                repeat_slider,       # ๋ฐ˜๋ณต ํšŸ์ˆ˜
                resolution_scale_slider  # ํ•ด์ƒ๋„ ์ถ•์†Œ ๋น„์œจ
            ],
            outputs=[
                gif_preview_output,  # ์™„์„ฑ๋œ GIF ๋ฏธ๋ฆฌ๋ณด๊ธฐ
                download_output,     # GIF ๋‹ค์šด๋กœ๋“œ ๋งํฌ
                logs_output          # ๋กœ๊ทธ ์ถœ๋ ฅ
            ]
        )

    gr.Markdown(
        "### [์‚ฌ์šฉ ๊ฐ€์ด๋“œ]\n"
        "1. ๋™์˜์ƒ์„ ์—…๋กœ๋“œํ•˜์„ธ์š”.\n"
        "2. ์‹œ์ž‘/๋ ์‹œ๊ฐ„์„ ์ž…๋ ฅํ•˜์„ธ์š”.\n"
        "3. ํ”Œ๋žซํผ๋ณ„ ๊ถŒ์žฅ ํ•ด์ƒ๋„/๋น„์œจ(์›๋ณธ ์œ ์ง€, ์œ ํŠœ๋ธŒ, ์‡ผ์ธ /๋ฆด์Šค, ์ •์‚ฌ๊ฐํ˜•, ์ธ์Šคํƒ€๊ทธ๋žจ, ํด๋ž˜์‹)๊ณผ ์ถœ๋ ฅ ํ•ด์ƒ๋„ ์ถ•์†Œ ๋น„์œจ์„ ์„ ํƒํ•˜๊ณ ,\n"
        "   ํ”„๋ ˆ์ž„ ๋ ˆ์ดํŠธ ๋ฐฐ์œจ, ์žฌ์ƒ ์†๋„, ๋ฐ˜๋ณต ํšŸ์ˆ˜๋ฅผ ์กฐ์ ˆํ•œ ํ›„ `GIF ์ƒ์„ฑํ•˜๊ธฐ` ๋ฒ„ํŠผ์„ ๋ˆ„๋ฅด๋ฉด GIF๊ฐ€ ์ƒ์„ฑ๋ฉ๋‹ˆ๋‹ค.\n"
        "   - ๋ฐ˜๋ณต ํšŸ์ˆ˜(0: ๋ฌดํ•œ๋ฐ˜๋ณต, 1~10: ์ง€์ • ํšŸ์ˆ˜). ์˜ˆ) 1์ด๋ฉด 1ํšŒ ์žฌ์ƒ ํ›„ ๋ฉˆ์ถค, 2์ด๋ฉด 2ํšŒ ์žฌ์ƒ, 0์ด๋ฉด ๋ฌดํ•œ๋ฐ˜๋ณต.\n"
        "4. ๊ฒฐ๊ณผ ๋ฏธ๋ฆฌ๋ณด๊ธฐ์™€ ๋‹ค์šด๋กœ๋“œ ๋งํฌ๋ฅผ ํ†ตํ•ด GIF๋ฅผ ํ™•์ธํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.\n"
        "โ€ป ๋ฌดํ•œ๋ฐ˜๋ณต์ด ์•„๋‹Œ ํŠน์ • ๋ฐ˜๋ณต ํšŸ์ˆ˜๋ฅผ ์›ํ•  ๊ฒฝ์šฐ, ImageMagick์ด ์„ค์น˜๋˜์–ด ์žˆ์–ด์•ผ ํ•ฉ๋‹ˆ๋‹ค."
    )

if __name__ == "__main__":
    demo.launch()