#!/bin/sh
# Build and publish the release APK for Kepr Builds.
#
# Kepr Beta builds use the established release certificate. Validate the produced
# APK's package, version, ABI, and signing identity before staging it.
set -eu

# PB-26-008: tool paths are discovered from the environment first, then a
# Homebrew default, then fail closed. No silent fallback to an unknown path.
JAVA_HOME="${PEACH_JAVA_HOME:-/opt/homebrew/opt/openjdk@17/libexec/openjdk.jdk/Contents/Home}"
if [ ! -d "$JAVA_HOME" ]; then
    echo "refusing to publish: Java 17 runtime not found at $JAVA_HOME (set PEACH_JAVA_HOME)" >&2
    exit 1
fi
export JAVA_HOME

ROOT_DIR=$(CDPATH= cd -- "$(dirname -- "$0")/.." && pwd)
cd "$ROOT_DIR"

# Keep the tool-selection and public metadata gates shared with the hermetic
# negative-path test; this script owns build orchestration only.
# shellcheck source=scripts/kepr-build-helpers.sh
. "$ROOT_DIR/scripts/kepr-build-helpers.sh"

# Resolve the SDK from the environment first, then the non-secret sdk.dir in
# local.properties. Pick the newest *versioned* build-tools directory containing both
# tools; build-tools/latest is intentionally never trusted or consulted.
SDK_ROOT="${ANDROID_HOME:-${ANDROID_SDK_ROOT:-}}"
if [ -z "$SDK_ROOT" ]; then
    SDK_ROOT=$(sed -n 's/^sdk\.dir=//p' "$ROOT_DIR/local.properties" 2>/dev/null | sed -n '1p')
fi
if [ -z "$SDK_ROOT" ] || [ ! -d "$SDK_ROOT/build-tools" ]; then
    echo "refusing to publish: Android SDK build-tools directory not found" >&2
    exit 1
fi

BUILD_TOOLS_DIR=$(find_stable_build_tools_dir "$SDK_ROOT" || true)
if [ -z "$BUILD_TOOLS_DIR" ]; then
    echo "refusing to publish: no versioned build-tools directory has aapt2" >&2
    exit 1
fi
AAPT2="$BUILD_TOOLS_DIR/aapt2"

ROOT_VERSION=$(read_root_semver "$ROOT_DIR/VERSION" || true)
if [ -z "$ROOT_VERSION" ]; then
    echo "refusing to publish: VERSION is missing or not strict semantic version" >&2
    exit 1
fi
# PB-26-009: Gradle reads release signing passwords during configuration, so
# source the existing protected environment before invoking any release task.
if [ -f "$HOME/.secrets" ]; then
    . "$HOME/.secrets"
fi

"$ROOT_DIR/gradlew" --no-configuration-cache :app:assembleRelease

# PB-26-113: the merged release manifest is the shipped permission and exported
# component surface. Drift from the checked-in inventory refuses the publish
# rather than reaching a store unnoticed.
python3 "$ROOT_DIR/scripts/check-release-manifest.py" check ||
    {
        echo "refusing to publish: release manifest inventory drift" >&2
        exit 1
    }

case "${KEPR_TARGET:-}" in
    android-arm64)
        APK_NAME="app-arm64-v8a-release.apk"
        EXPECTED_ABI="arm64-v8a"
        ;;
    android-x86)
        APK_NAME="app-x86_64-release.apk"
        EXPECTED_ABI="x86_64"
        ;;
    *)
        echo "refusing to publish: unsupported KEPR_TARGET '${KEPR_TARGET:-unset}'" >&2
        exit 1
        ;;
esac

APK="$ROOT_DIR/app/build/outputs/apk/release/$APK_NAME"
METADATA="$ROOT_DIR/app/build/outputs/apk/release/output-metadata.json"
if [ ! -f "$APK" ] || [ ! -r "$APK" ]; then
    echo "refusing to publish: release APK was not produced" >&2
    exit 1
fi
if [ ! -f "$METADATA" ] || [ ! -r "$METADATA" ]; then
    echo "refusing to publish: Gradle output metadata was not produced" >&2
    exit 1
fi

# PB-26-123: the inventory is an allow-list of native libraries. It is checked
# against the source set AND against the packaged APK, so a library that
# arrived only through a dependency is refused too.
python3 "$ROOT_DIR/scripts/check-native-provenance.py" "$APK" ||
    {
        echo "refusing to publish: native provenance drift" >&2
        exit 1
    }

BADGING_FILE=$(mktemp "${TMPDIR:-/tmp}/peach-apk-badging.XXXXXX")
cleanup_badging() {
    [ -e "$BADGING_FILE" ] && trash "$BADGING_FILE"
}
trap cleanup_badging EXIT HUP INT TERM
"$AAPT2" dump badging "$APK" > "$BADGING_FILE"
if ! validate_release_metadata \
    "$METADATA" \
    "$BADGING_FILE" \
    "$ROOT_VERSION" \
    "com.peachpasswords" \
    "$APK_NAME" \
    "$EXPECTED_ABI"; then
    exit 1
fi

RELEASE_KEYSTORE=$(sed -n 's/^peachStoreFile=//p' "$ROOT_DIR/local.properties" | sed -n '1p')
RELEASE_ALIAS=$(sed -n 's/^peachKeyAlias=//p' "$ROOT_DIR/local.properties" | sed -n '1p')
RELEASE_STOREPASS="${PEACH_STORE_PASSWORD:-}"
if [ -z "$RELEASE_STOREPASS" ]; then
    echo "refusing to publish: PEACH_STORE_PASSWORD is not set (source ~/.secrets)" >&2
    exit 1
fi
if [ -z "$RELEASE_KEYSTORE" ] || [ -z "$RELEASE_ALIAS" ]; then
    echo "refusing to publish: peachStoreFile or peachKeyAlias missing from local.properties" >&2
    exit 1
fi
RELEASE_CERTIFICATE=$(release_certificate_sha256 "$RELEASE_KEYSTORE" "$RELEASE_STOREPASS" "$RELEASE_ALIAS")
if ! assert_established_release_certificate "$RELEASE_CERTIFICATE"; then
    exit 1
fi
if ! assert_release_signer_matches \
    "$RELEASE_CERTIFICATE" \
    "$(apk_signer_sha256 "$BUILD_TOOLS_DIR/apksigner" "$APK")" \
    "$APK_NAME"; then
    exit 1
fi

# Only a fully verified artifact reaches the Kepr staging directory. The
# basename includes SemVer + ABI so Kepr's Content-Disposition carries both
# to the browser, matching the {version}/{platform} tokens in kepr.build.
mkdir -p "$ROOT_DIR/build/kepr"
STAGED_NAME="peach-android-${ROOT_VERSION}-${KEPR_TARGET}.apk"
cp "$APK" "$ROOT_DIR/build/kepr/$STAGED_NAME"
echo "release APK verified and staged: build/kepr/$STAGED_NAME"