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

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
VERSION_FILE="$PROJECT_ROOT/VERSION"

# ── Read and validate version ──────────────────────────────────────
if [ ! -f "$VERSION_FILE" ]; then
  echo "ERROR: VERSION file not found" >&2
  exit 1
fi

VERSION=$(cat "$VERSION_FILE" | sed 's/^[vV]//' | tr -d '[:space:]')

if ! echo "$VERSION" | grep -qE '^[0-9]+\.[0-9]+\.[0-9]+$'; then
  echo "ERROR: '$VERSION' is not valid semver (expected X.Y.Z)" >&2
  exit 1
fi

echo "=== Building GUI Video Clipper v$VERSION ==="
echo ""

# ── Install frontend dependencies ──────────────────────────────────
echo "→ Installing dependencies…"
cd "$PROJECT_ROOT"
npm install --silent

# ── Run tauri build ────────────────────────────────────────────────
echo "→ Building release (this may take a few minutes)…"
BUILD_LOG=$(mktemp)
npx tauri build 2>&1 | tee "$BUILD_LOG" | tail -10

# ── Locate built artifacts ─────────────────────────────────────────
# Parse .app path from tauri build output (handles custom CARGO_TARGET_DIR)
APP_SRC=$(grep '\.app$' "$BUILD_LOG" | head -1 | sed 's/^[[:space:]]*//')
DMG_SRC=$(grep '\.dmg$' "$BUILD_LOG" | head -1 | sed 's/^[[:space:]]*//')
rm -f "$BUILD_LOG"

# Fall back to standard location if parsing failed
if [ -z "$APP_SRC" ] || [ ! -d "$APP_SRC" ]; then
  BUNDLE_DIR="$PROJECT_ROOT/src-tauri/target/release/bundle"
  APP_SRC="$BUNDLE_DIR/macos/GUI Video Clipper.app"
fi

if [ ! -d "$APP_SRC" ]; then
  echo "ERROR: .app bundle not found" >&2
  echo "Check the build output above for errors." >&2
  exit 1
fi

# ── Ad-hoc code sign ──────────────────────────────────────────────
echo "→ Ad-hoc signing .app…"
codesign --force --deep -s - "$APP_SRC"

# ── Copy to dist/release/ ─────────────────────────────────────────
DIST_DIR="$PROJECT_ROOT/dist/release"
mkdir -p "$DIST_DIR"

echo "→ Copying to dist/release/…"
rm -rf "$DIST_DIR/GUI Video Clipper.app"
cp -R "$APP_SRC" "$DIST_DIR/"

# Copy DMG if it was built
DMG_FILE="$DMG_SRC"
if [ -n "$DMG_FILE" ] && [ -f "$DMG_FILE" ]; then
  cp "$DMG_FILE" "$DIST_DIR/"
  echo "  ✓ DMG: $(basename "$DMG_FILE")"
fi

# ── Summary ────────────────────────────────────────────────────────
APP_SIZE=$(du -sh "$DIST_DIR/GUI Video Clipper.app" | cut -f1)
echo ""
echo "=== Build Complete ==="
echo "  Version:  v$VERSION"
echo "  App:      dist/release/GUI Video Clipper.app ($APP_SIZE)"
if [ -n "$DMG_FILE" ] && [ -f "$DIST_DIR/$(basename "$DMG_FILE")" ]; then
  DMG_SIZE=$(du -sh "$DIST_DIR/$(basename "$DMG_FILE")" | cut -f1)
  echo "  DMG:      dist/release/$(basename "$DMG_FILE") ($DMG_SIZE)"
fi
echo ""
echo "To run: open \"dist/release/GUI Video Clipper.app\""