#!/usr/bin/env bash
set -euo pipefail

ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
APP_BIN="$ROOT_DIR/bin/vehicle_video_service"
DIST_DIR="${DIST_DIR:-$ROOT_DIR/dist}"
PACKAGE_NAME="${PACKAGE_NAME:-vehicle-video-service-aarch64}"
STAGE_DIR="$DIST_DIR/$PACKAGE_NAME"

if [[ "${SKIP_VIDEO_BUILD:-0}" != "1" ]]; then
    "$ROOT_DIR/scripts/build_video.sh"
fi

find_srs_bin() {
    local candidates=(
        "${SRS_BIN:-}"
        "$ROOT_DIR/external/srs-server-5.0-r3/trunk/objs/srs"
        "/home/aiec/srs-server-5.0-r3/trunk/objs/srs"
        "/home/aiec/srs/bin/srs"
    )

    for candidate in "${candidates[@]}"; do
        if [[ -n "$candidate" && -x "$candidate" ]]; then
            echo "$candidate"
            return 0
        fi
    done

    return 1
}

find_srs_html() {
    local candidates=(
        "${SRS_HTML_DIR:-}"
        "$ROOT_DIR/external/srs-server-5.0-r3/trunk/research/players"
        "/home/aiec/srs/html"
        "$ROOT_DIR/deploy/srs/html"
    )

    for candidate in "${candidates[@]}"; do
        if [[ -n "$candidate" && -d "$candidate" ]]; then
            echo "$candidate"
            return 0
        fi
    done

    return 1
}

SRS_BIN_PATH="$(find_srs_bin)" || {
    echo "SRS binary not found. Set SRS_BIN or run scripts/build_srs.sh first." >&2
    exit 1
}

SRS_HTML_PATH="$(find_srs_html)" || {
    echo "SRS html directory not found. Set SRS_HTML_DIR." >&2
    exit 1
}

if [[ ! -x "$APP_BIN" ]]; then
    echo "Application binary not found: $APP_BIN" >&2
    exit 1
fi

rm -rf "$STAGE_DIR"
mkdir -p "$STAGE_DIR/bin" "$STAGE_DIR/config" "$STAGE_DIR/srs/bin" "$STAGE_DIR/srs/conf" \
         "$STAGE_DIR/srs/html" "$STAGE_DIR/srs/log" "$STAGE_DIR/srs/run" "$STAGE_DIR/systemd"

install -m 0755 "$APP_BIN" "$STAGE_DIR/bin/vehicle_video_service"
install -m 0644 "$ROOT_DIR/config.json" "$STAGE_DIR/config/config.json"
install -m 0755 "$SRS_BIN_PATH" "$STAGE_DIR/srs/bin/srs"
cp -a "$SRS_HTML_PATH"/. "$STAGE_DIR/srs/html/"
install -m 0644 "$ROOT_DIR/deploy/srs/conf/live.conf" "$STAGE_DIR/srs/conf/live.conf"
install -m 0644 "$ROOT_DIR/deploy/srs/conf/record.conf" "$STAGE_DIR/srs/conf/record.conf"
install -m 0644 "$ROOT_DIR/deploy/systemd/"*.service.in "$STAGE_DIR/systemd/"
install -m 0755 "$ROOT_DIR/deploy/install.sh" "$STAGE_DIR/install.sh"
install -m 0755 "$ROOT_DIR/deploy/uninstall.sh" "$STAGE_DIR/uninstall.sh"
install -m 0644 "$ROOT_DIR/README.md" "$STAGE_DIR/README.md"

tar -C "$DIST_DIR" -czf "$DIST_DIR/$PACKAGE_NAME.tar.gz" "$PACKAGE_NAME"

echo "Packaged $DIST_DIR/$PACKAGE_NAME.tar.gz"