#!/usr/bin/env bash
# Build an AppImage packaging blocker-daemon, blocker-ui and assets.

set -euo pipefail

ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
DIST_DIR="$ROOT_DIR/dist"
APPDIR="$DIST_DIR/AppDir"
PKG_DIR="$ROOT_DIR/packaging/appimage"

echo "Building release binaries..."
cargo build --release -p blocker-daemon -p blocker-ui

echo "Preparing AppDir structure..."
mkdir -p "$APPDIR"
mkdir -p "$APPDIR/usr/bin"
mkdir -p "$APPDIR/usr/share/applications"
mkdir -p "$APPDIR/usr/share/icons/hicolor/scalable/apps"

cp "$ROOT_DIR/target/release/blocker-daemon" "$APPDIR/usr/bin/"
cp "$ROOT_DIR/target/release/blocker-ui" "$APPDIR/usr/bin/"
cp "$PKG_DIR/AppRun" "$APPDIR/AppRun"
cp "$PKG_DIR/blocker.desktop" "$APPDIR/blocker.desktop"
cp "$PKG_DIR/blocker.desktop" "$APPDIR/usr/share/applications/"
cp "$PKG_DIR/blocker.svg" "$APPDIR/blocker.svg"
cp "$PKG_DIR/blocker.svg" "$APPDIR/usr/share/icons/hicolor/scalable/apps/"
chmod +x "$APPDIR/AppRun"

SQUASHFS_IMG="$DIST_DIR/appdir.squashfs"
OUTPUT_APPIMAGE="$DIST_DIR/Blocker-x86_64.AppImage"
RUNTIME_BIN="$PKG_DIR/bin/runtime-x86_64"

rm -f "$OUTPUT_APPIMAGE" "$SQUASHFS_IMG"

echo "Creating AppImage with mksquashfs..."
mksquashfs "$APPDIR" "$SQUASHFS_IMG" -root-owned -noappend -comp xz

if [ -f "$RUNTIME_BIN" ]; then
    echo "Embedding AppImage Type 2 ELF runtime..."
    cat "$RUNTIME_BIN" "$SQUASHFS_IMG" > "$OUTPUT_APPIMAGE"
    printf '\x41\x49\x02' | dd of="$OUTPUT_APPIMAGE" bs=1 seek=8 count=3 conv=notrunc 2>/dev/null
    rm -f "$SQUASHFS_IMG"
else
    mv "$SQUASHFS_IMG" "$OUTPUT_APPIMAGE"
fi
chmod +x "$OUTPUT_APPIMAGE"

echo "Built AppImage: $OUTPUT_APPIMAGE"
ls -lh "$OUTPUT_APPIMAGE"