#!/usr/bin/env bash

set -Eeuo pipefail

SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
# shellcheck source=install_common.sh
source "$SCRIPT_DIR/install_common.sh"

readonly STAGING_DIR="${STAGING_DIR:-/app/staging_area/copilot/tmp}"
readonly POSTGRES_ROOT="${POSTGRES_ROOT:-/app/postgres/rdbms}"
readonly PGAUDIT_REPOSITORY="${PGAUDIT_REPOSITORY:-pgaudit/pgaudit}"

[[ $# -eq 1 ]] || die "Usage: $0 <postgresql-version>"
readonly POSTGRES_VERSION="$1"
validate_postgresql_version "$POSTGRES_VERSION"
require_tools curl tar make
readonly PREFIX="$POSTGRES_ROOT/$POSTGRES_VERSION"
readonly PG_CONFIG="$PREFIX/bin/pg_config"
require_postgresql_installation "$PREFIX"
reset_staging_dir "$STAGING_DIR"

readonly PGAUDIT_TAG="${PGAUDIT_TAG:-$(latest_pgaudit_tag "$PGAUDIT_REPOSITORY" "${POSTGRES_VERSION%%.*}")}"
[[ -n "$PGAUDIT_TAG" ]] || die "could not determine the latest pgAudit release"
readonly PGAUDIT_DIR="$STAGING_DIR/pgaudit-${PGAUDIT_TAG#v}"

printf 'Building pgAudit %s\n' "$PGAUDIT_TAG"
download_source "$STAGING_DIR" "$PGAUDIT_REPOSITORY" "$PGAUDIT_TAG" \
  "pgaudit-${PGAUDIT_TAG#v}.tar.gz" "$PGAUDIT_DIR"
cd "$PGAUDIT_DIR"
make -j"${JOBS:-$(nproc)}" USE_PGXS=1 PG_CONFIG="$PG_CONFIG"
make install USE_PGXS=1 PG_CONFIG="$PG_CONFIG"
test -x "$PREFIX/lib/pgaudit.so"