#!/usr/bin/env bash
#
# Standalone, reproducible build script for massCode (Electron + Vue + Vite).
#
# On a fresh `git clone` into which only build.sh and launch.sh have been copied,
# `bash build.sh` installs all dependencies, applies the required source patch
# inline, builds the renderer, packages the app with electron-builder as an
# unsigned .app bundle, ad-hoc signs it, and copies it to the output directory.
#
set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
cd "$SCRIPT_DIR"

# -----------------------------------------------------------------------------
# Configuration
# -----------------------------------------------------------------------------
PNPM_VERSION="8.15.9"                       # pnpm-lock.yaml is lockfileVersion 6.0 -> pnpm 8
APP_NAME="massCode.app"
OUT_DIR="${APP_OUTPUT_DIR:-$SCRIPT_DIR}"

# Map host arch -> electron-builder mac arch.
case "$(uname -m)" in
  arm64)  MAC_ARCH="arm64" ;;
  x86_64) MAC_ARCH="x64" ;;
  *)      echo "!! Unsupported architecture: $(uname -m)"; exit 1 ;;
esac

echo ">> massCode build starting"
echo ">>   script dir : $SCRIPT_DIR"
echo ">>   output dir : $OUT_DIR"
echo ">>   mac arch   : $MAC_ARCH"

# -----------------------------------------------------------------------------
# 1. Toolchain check
# -----------------------------------------------------------------------------
command -v node >/dev/null 2>&1 || { echo "!! node is required but not found"; exit 1; }
command -v npx  >/dev/null 2>&1 || { echo "!! npx is required but not found"; exit 1; }
echo ">> node: $(node --version)"

# -----------------------------------------------------------------------------
# 2. Reset tracked source files to their pristine committed state.
#    electron-builder (step 5) rewrites the root package.json in place as a side
#    effect of `extraMetadata` (it strips devDependencies and sets main), and
#    the inline patch below edits config/electron-builder.ts. Resetting first
#    makes this script safe to re-run: a corrupted package.json would otherwise
#    fail the frozen-lockfile install on the next invocation.
# -----------------------------------------------------------------------------
if git -C "$SCRIPT_DIR" rev-parse --is-inside-work-tree >/dev/null 2>&1; then
  git -C "$SCRIPT_DIR" checkout -- package.json config/electron-builder.ts 2>/dev/null || true
fi

# -----------------------------------------------------------------------------
# 3. Install JavaScript dependencies
#    - The lockfile is pnpm v6.0 format, which requires pnpm 8. We invoke a
#      pinned pnpm via npx so the build works regardless of the globally
#      installed pnpm version.
#    - .npmrc sets node-linker=hoisted, giving a flat node_modules that
#      electron-builder can package.
# -----------------------------------------------------------------------------
export HUSKY=0                              # skip git-hook installation in CI
echo ">> Installing dependencies with pnpm@$PNPM_VERSION (this can take a few minutes) ..."
npx --yes "pnpm@$PNPM_VERSION" install --frozen-lockfile

# -----------------------------------------------------------------------------
# 4. Apply inline source patch (idempotent)
#    massCode's electron-builder config produces signed .dmg installers for both
#    arches. For a local, unsigned build we switch the mac target to 'dir'
#    (an unpacked .app bundle) and disable code signing (identity: null).
# -----------------------------------------------------------------------------
PATCH_EB=$(cat <<'PATCH'
diff --git a/config/electron-builder.ts b/config/electron-builder.ts
index e2f8505..df7ee3c 100644
--- a/config/electron-builder.ts
+++ b/config/electron-builder.ts
@@ -11,8 +11,8 @@ const artifactName = isSponsored
   : undefined

 const macTarget = [
-  { target: 'dmg', arch: 'arm64' },
-  { target: 'dmg', arch: 'x64' }
+  { target: 'dir', arch: 'arm64' },
+  { target: 'dir', arch: 'x64' }
 ]

 if (isTestBuild) {
@@ -38,7 +38,8 @@ export default {
     target: macTarget,
     icon: 'config/icons/icon.icns',
     category: 'public.app-category.productivity',
-    hardenedRuntime: true,
+    hardenedRuntime: false,
+    identity: null,
     entitlements: 'build/entitlements.mac.inherit.plist'
   },
   win: {
PATCH
)

apply_patch() {
  local patch="$1"
  if printf '%s\n' "$patch" | git apply --reverse --check >/dev/null 2>&1; then
    echo ">> Source patch already applied, skipping."
  elif printf '%s\n' "$patch" | git apply --check >/dev/null 2>&1; then
    printf '%s\n' "$patch" | git apply
    echo ">> Source patch applied."
  else
    echo "!! Source patch does not apply cleanly; aborting."
    exit 1
  fi
}
apply_patch "$PATCH_EB"

# -----------------------------------------------------------------------------
# 5. Compile TypeScript (electron main process + config + build scripts) -> build/
#    NOTE: we deliberately skip `npm run build`'s `vue-tsc` type-check step. That
#    step runs BEFORE Vite generates the git-ignored
#    src/renderer/types/{auto-imports,components}.d.ts files, so on a fresh clone
#    it fails on missing auto-imported globals. It is purely advisory (--noEmit)
#    and not required to produce artifacts.
# -----------------------------------------------------------------------------
echo ">> Compiling TypeScript (tsconfig.electron.json) ..."
node_modules/.bin/tsc -p tsconfig.electron.json || true
test -f build/scripts/build.js || { echo "!! TS build did not emit build/scripts/build.js"; exit 1; }

# electron-builder references build/entitlements.mac.inherit.plist
node_modules/.bin/copyfiles '*.plist' build

# -----------------------------------------------------------------------------
# 6. Build the renderer (Vite) and package the app (electron-builder).
#    TEST_BUILD + TEST_MAC_ARCH limit packaging to the host arch only.
#    CSC_IDENTITY_AUTO_DISCOVERY=false prevents any attempt to auto-discover a
#    signing identity.
# -----------------------------------------------------------------------------
echo ">> Building renderer and packaging app ..."
export TEST_BUILD=true
export TEST_MAC_ARCH="$MAC_ARCH"
export CSC_IDENTITY_AUTO_DISCOVERY=false
export NODE_ENV=production
node build/scripts/build.js

# -----------------------------------------------------------------------------
# 7. Locate the built .app
# -----------------------------------------------------------------------------
SRC_APP="$(find "$SCRIPT_DIR/dist" -maxdepth 2 -name "$APP_NAME" -type d -print -quit 2>/dev/null || true)"
test -n "$SRC_APP" || { echo "!! Could not find built $APP_NAME under dist/"; exit 1; }
echo ">> Built app: $SRC_APP"

# -----------------------------------------------------------------------------
# 8. Ad-hoc code sign.
#    Required so the app runs on Apple Silicon (unsigned arm64 binaries are
#    killed on launch); harmless on Intel.
# -----------------------------------------------------------------------------
echo ">> Ad-hoc signing ..."
codesign --force --deep --sign - "$SRC_APP" || echo "!! ad-hoc signing failed (continuing)"

# -----------------------------------------------------------------------------
# 9. Copy the final .app to the output directory
# -----------------------------------------------------------------------------
mkdir -p "$OUT_DIR"
OUT_APP="$OUT_DIR/$APP_NAME"
SRC_APP_REAL="$(cd "$(dirname "$SRC_APP")" && pwd)/$APP_NAME"
OUT_APP_REAL="$(cd "$OUT_DIR" && pwd)/$APP_NAME"
if [ "$SRC_APP_REAL" != "$OUT_APP_REAL" ]; then
  rm -rf "$OUT_APP"
  ditto "$SRC_APP" "$OUT_APP"
  echo ">> Copied app to: $OUT_APP"
else
  OUT_APP="$SRC_APP"
fi

echo ""
echo ">> BUILD SUCCESS"
echo ">> App bundle: $OUT_APP"