#!/usr/bin/env bash
# Runs the GdUnit4 test suite headless.
#
# Usage: ./run_tests.sh [test path ...]
#   ./run_tests.sh                                  all tests
#   ./run_tests.sh res://tests/unit                 only unit tests
#   ./run_tests.sh res://tests/unit/test_search.gd  a single suite
#
# Godot is taken from $GODOT, then `godot` on PATH, then the macOS app bundles.

set -euo pipefail
cd "$(dirname "$0")"

find_godot() {
    if [[ -n "${GODOT:-}" ]]; then
        echo "$GODOT"
        return
    fi
    if command -v godot > /dev/null; then
        command -v godot
        return
    fi
    for app in /Applications/Godot.app /Applications/Godot_mono.app; do
        if [[ -x "$app/Contents/MacOS/Godot" ]]; then
            echo "$app/Contents/MacOS/Godot"
            return
        fi
    done
    echo "Godot not found. Install Godot 4.7 or set GODOT=/path/to/godot" >&2
    exit 1
}

godot_bin="$(find_godot)"

# Keeps the tests away from the real quiz settings file, see Settings.CONFIG_DIR_ENV
MUSICPLAYER_CONFIG_DIR="$(mktemp -d)"
export MUSICPLAYER_CONFIG_DIR
trap 'rm -rf "$MUSICPLAYER_CONFIG_DIR"' EXIT

paths=("$@")
if [[ ${#paths[@]} -eq 0 ]]; then
    paths=(res://tests/unit res://tests/integration)
fi
test_args=()
for path in "${paths[@]}"; do
    test_args+=(-a "$path")
done

# Builds the class cache so class_name types resolve; fast when nothing changed
"$godot_bin" --headless --path . --import > /dev/null 2>&1

set +e
"$godot_bin" --headless --path . \
    -s addons/gdUnit4/bin/GdUnitCmdTool.gd --ignoreHeadlessMode "${test_args[@]}"
exit_code=$?
set -e

# GdUnit4 exits with 101 when tests pass but report warnings (e.g. orphan nodes)
if [[ $exit_code -eq 101 ]]; then
    echo "Tests passed with warnings, see the report above."
    exit 0
fi
exit $exit_code