#!/usr/bin/env bash
# Prove the game boots cleanly from a bare checkout -- no committed .godot
# cache, no prior editor scan. Catches the class-of-bug where cross-file
# `class_name` references only resolve because a stale cache happened to list
# the old classes (which is exactly how the avatar system broke pre-PC3).
#
# Usage: scripts/verify_fresh_clone.sh
# Exit 0 iff a from-scratch import + headless boot of the main menu produces
# zero SCRIPT ERROR / failed-autoload lines.
set -uo pipefail
cd "$(dirname "$0")/.."

GODOT_BIN="${GODOT_BIN:-godot}"
command -v "$GODOT_BIN" >/dev/null 2>&1 || GODOT_BIN="$HOME/godot/godot"
command -v "$GODOT_BIN" >/dev/null 2>&1 || { echo "godot binary not found"; exit 1; }

WORK="$(mktemp -d)"
trap 'rm -rf "$WORK"' EXIT

echo "=== exporting a pristine tree (tracked files only, no .godot) ==="
git archive --format=tar HEAD | tar -x -C "$WORK"
[ -f "$WORK/project.godot" ] || { echo "export produced no project.godot"; exit 1; }
[ -d "$WORK/.godot" ] && { echo "FAIL: .godot/ is tracked in git -- it must not be"; exit 1; }

LOG="$WORK/_boot.log"

echo "=== import pass (builds the class cache from scratch) ==="
"$GODOT_BIN" --headless --path "$WORK" --import >"$LOG" 2>&1 || true

echo "=== headless boot: main menu ==="
"$GODOT_BIN" --headless --path "$WORK" scenes/main_menu.tscn --quit-after 150 >>"$LOG" 2>&1 || true

echo "=== headless boot: game scene ==="
"$GODOT_BIN" --headless --path "$WORK" scenes/game.tscn --quit-after 90 >>"$LOG" 2>&1 || true

BAD=$(grep -nE 'SCRIPT ERROR|Failed to instantiate an autoload|does not inherit from|Failed to load script' "$LOG" || true)
if [ -n "$BAD" ]; then
	echo
	echo "FAIL: fresh clone does not boot clean --"
	echo "$BAD"
	echo "=== SMOKE RESULT: FAIL ==="
	exit 1
fi

echo "=== SMOKE RESULT: PASS ==="