#!/bin/bash

# === Default settings ===
HANDBRAKE_CLI="/usr/bin/HandBrakeCLI"
LOG_FILE="./handbrake_convert.log"

# === Read parameters ===
while [[ $# -gt 0 ]]; do
    case "$1" in
        --source)
            SOURCE_DIR="$2"
            shift 2
            ;;
        --destination)
            DEST_DIR="$2"
            shift 2
            ;;
        --mode)
            MODE="$2"
            shift 2
            ;;
        *)
            echo "Unknown parameter: $1"
            exit 1
            ;;
    esac
done

# === Check required parameters ===
if [[ -z "$SOURCE_DIR" || -z "$DEST_DIR" || -z "$MODE" ]]; then
    echo "Usage: $0 --source /path/to/source --destination /path/to/destination --mode [bluray|dvd]"
    exit 1
fi

# === Set presets based on mode ===
case "$MODE" in
    bluray)
        PRESET_FILE="./profiles/BluRay H.265 HEVC.json"
        PRESET_NAME="BluRay H.265 HEVC"
        ;;
    dvd)
        PRESET_FILE="./profiles/DVD 720p H.265.json"
        PRESET_NAME="DVD 720p H.265"
        ;;
    *)
        echo "Invalid mode: $MODE (allowed: bluray, dvd)"
        exit 1
        ;;
esac

# === Recursively find all MKV files ===
find "$SOURCE_DIR" -type f -name "*.mkv" | while read -r input_file; do
    # Get relative path
    rel_path="${input_file#$SOURCE_DIR/}"
    rel_dir="$(dirname "$rel_path")"

    # Create matching directory structure in destination
    mkdir -p "$DEST_DIR/$rel_dir"

    base_name="$(basename "$input_file" .mkv)"
    output_file="$DEST_DIR/$rel_dir/$base_name.mkv"

    # Convert if output does not exist
    if [ ! -f "$output_file" ]; then
        echo "$(date +"%Y-%m-%d %H:%M:%S") - Converting: $rel_path" >> "$LOG_FILE"
        "$HANDBRAKE_CLI" -i "$input_file" -o "$output_file" \
            --preset-import-file "$PRESET_FILE" --preset "$PRESET_NAME" >> "$LOG_FILE" 2>&1
    else
        echo "$(date +"%Y-%m-%d %H:%M:%S") - Skipped (already exists): $rel_path" >> "$LOG_FILE"
    fi
done

echo "$(date +"%Y-%m-%d %H:%M:%S") - Finished!" >> "$LOG_FILE"