#!/usr/bin/env bash
# Build the Linux artifacts (AppImage + .deb) WITHOUT Docker and WITHOUT
# recompiling the Rust launcher.
#
# WHY: this app's launcher (Tauri/Rust) barely ever changes — what changes is the
# cockpit itself (web/ JSX), which ships as a *resource* the Bun sidecar serves at
# runtime. So a release is really just: rebuild the web cockpit, drop it into the
# already-compiled bundle, and repack. That's seconds, not a Docker cross-build.
#
# It reuses three things produced by a prior full `tauri build`:
#   * the compiled launcher + GTK/WebKit libs in the AppDir
#   * the cached linuxdeploy appimage packer (~/.cache/tauri/...)
#   * the seed .deb (for its control metadata + file tree)
# and refreshes the cockpit (usr/lib/X-Plane Cockpit/web) + Lua plugins in both.
#
# Seed once (native, no Docker) if the AppDir is missing:
#   scripts/prep-desktop.sh
#   npx --prefix desktop tauri build --target x86_64-unknown-linux-gnu --bundles appimage,deb
# Thereafter just run this script for every web-only change.
#
# CAVEAT: the launcher binary is reused as-is, so the *version it reports itself*
# (used by the auto-updater) is whatever it was last compiled with — not
# necessarily $VERSION. The cockpit features are unaffected (they come from the
# refreshed web resources). If you bump the version AND rely on the updater,
# recompile the launcher once with the tauri build line above.
set -euo pipefail
ROOT="$(cd "$(dirname "$0")/.." && pwd)"; cd "$ROOT"
die(){ echo "!! $*" >&2; exit 1; }

TARGET=x86_64-unknown-linux-gnu
BUNDLE="$ROOT/target-linux/$TARGET/release/bundle"
APPDIR="$BUNDLE/appimage/X-Plane Cockpit.AppDir"
RESDIR="$APPDIR/usr/lib/X-Plane Cockpit"
PLUGIN="$HOME/.cache/tauri/linuxdeploy-plugin-appimage.AppImage"
SIDECAR="$ROOT/desktop/src-tauri/binaries/xpbridge-$TARGET"
PKGNAME="X-Plane Cockpit"
VERSION="$(node -p "require('$ROOT/desktop/src-tauri/tauri.conf.json').version")"

echo "==> X-Plane Cockpit Linux repack — v$VERSION (no Docker, no Rust recompile)"

# ---- preflight -----------------------------------------------------------
[[ -d "$APPDIR" ]]  || die "no prebuilt AppDir: $APPDIR — seed one full tauri build first (see header)"
[[ -x "$PLUGIN" ]]  || die "missing appimage packer: $PLUGIN — run one tauri appimage build to fetch it"
[[ -f "$SIDECAR" ]] || die "missing sidecar: $SIDECAR — run scripts/prep-desktop.sh"
command -v ar  >/dev/null || die "'ar' (binutils) required to assemble the .deb"
command -v tar >/dev/null || die "'tar' required"

SIGN=0
[[ -f desktop/.tauri-signing.key && -f desktop/.tauri-signing.pw ]] && SIGN=1
sign(){ # $1 = artifact; writes <artifact>.sig next to it
  if [[ $SIGN == 1 ]]; then
    TAURI_SIGNING_PRIVATE_KEY="$(cat desktop/.tauri-signing.key)" \
    TAURI_SIGNING_PRIVATE_KEY_PASSWORD="$(cat desktop/.tauri-signing.pw)" \
      npx --prefix desktop tauri signer sign "$1" >/dev/null
    echo "   signed: $(basename "$1").sig"
  else
    rm -f "$1.sig"
  fi
}

# ---- 1. build the web cockpit, refresh repo resources --------------------
echo "==> building web cockpit (vite)"
( cd web && npm run build >/dev/null )
echo "==> refreshing desktop/src-tauri/resources"
rm -rf "desktop/src-tauri/resources/web";     mkdir -p "desktop/src-tauri/resources/web"
cp -R web/dist/. "desktop/src-tauri/resources/web/"
rm -rf "desktop/src-tauri/resources/plugins"; mkdir -p "desktop/src-tauri/resources/plugins"
cp plugins/*.lua "desktop/src-tauri/resources/plugins/"

# ---- 2. refresh the cockpit inside the prebuilt AppDir -------------------
echo "==> updating bundled cockpit inside AppDir"
rm -rf "$RESDIR/web";     mkdir -p "$RESDIR/web";     cp -R web/dist/. "$RESDIR/web/"
rm -rf "$RESDIR/plugins"; mkdir -p "$RESDIR/plugins"; cp plugins/*.lua "$RESDIR/plugins/"
# the AppDir's sidecar copy may be a patchelf-corrupted one — restore the pristine
cp -f "$SIDECAR" "$APPDIR/usr/bin/xpbridge"; chmod +x "$APPDIR/usr/bin/xpbridge"

# ---- 3. pack the AppImage (cached linuxdeploy plugin, no patchelf) -------
OUTIMG="$BUNDLE/appimage/${PKGNAME}_${VERSION}_amd64.AppImage"
echo "==> packing AppImage -> $(basename "$OUTIMG")"
rm -f "$OUTIMG"
APPIMAGE_EXTRACT_AND_RUN=1 NO_STRIP=1 ARCH=x86_64 LDAI_OUTPUT="$OUTIMG" \
  "$PLUGIN" --appdir "$APPDIR" >/dev/null
[[ -f "$OUTIMG" ]] || die "AppImage packing produced nothing"
chmod +x "$OUTIMG"
sign "$OUTIMG"
echo "   AppImage: $(du -h "$OUTIMG" | cut -f1)"

# The .deb is intentionally NOT built: the AppImage is the single self-contained,
# self-updating artifact (the Tauri Linux updater swaps the AppImage in place; it
# never uses a .deb). If you ever want a .deb too, run a full native tauri build
# with --bundles appimage,deb.

echo "==> done. artifact:"
ls -1 "$OUTIMG"