import sys
import os
import subprocess
from pathlib import Path

# --- PyInstaller & Path Handling ---
if getattr(sys, 'frozen', False):
    # Running as a compiled PyInstaller executable
    EXE_DIR = Path(sys.executable).parent
    BUNDLE_DIR = Path(sys._MEIPASS)
else:
    # Running as a standard Python script
    EXE_DIR = Path(__file__).parent
    BUNDLE_DIR = EXE_DIR

# Locate the bundled ffmpeg.exe
FFMPEG_EXE = BUNDLE_DIR / "ffmpeg.exe"

# If ffmpeg.exe isn't bundled inside, fallback to system PATH
if not FFMPEG_EXE.exists():
    FFMPEG_EXE = "ffmpeg"

# Settings
TARGET_WIDTH = 1280
TARGET_HEIGHT = 720
TARGET_FPS = 24

# Process videos relative to where the executable/script resides
input_folder = EXE_DIR
output_folder = input_folder / "converted"
output_folder.mkdir(exist_ok=True)

mp4_files = list(input_folder.glob("*.mp4"))

if not mp4_files:
    print("No MP4 files found.")
    input("Press Enter to exit...")
    sys.exit()

for video in mp4_files:
    output_file = output_folder / video.name

    print(f"Converting: {video.name}")

    cmd = [
        str(FFMPEG_EXE),  # Points directly to bundled ffmpeg.exe
        "-y",
        "-i", str(video),
        "-vf",
        f"scale={TARGET_WIDTH}:{TARGET_HEIGHT}:force_original_aspect_ratio=decrease,pad={TARGET_WIDTH}:{TARGET_HEIGHT}:(ow-iw)/2:(oh-ih)/2",
        "-r", str(TARGET_FPS),
        "-c:v", "libx264",
        "-preset", "veryfast",
        "-crf", "25",
        "-pix_fmt", "yuv420p",
        "-c:a", "aac",
        "-b:a", "128k",
        str(output_file)
    ]

    result = subprocess.run(cmd)

    if result.returncode == 0:
        print(f"✓ Finished {video.name}")
    else:
        print(f"✗ Failed {video.name}")

print("\nDone!")
input("Press Enter to exit...")