#!/usr/bin/env bash
set -euo pipefail

TT_WORKTREE_ROOT="$(git rev-parse --show-toplevel)"

# Deterministic port: 3100 + (sha1 of path) % 100
_hash=$(echo -n "$TT_WORKTREE_ROOT" | sha1sum | cut -c1-8)
_dec=$(( 16#$_hash ))
TT_TEST_PORT=$(( 3100 + _dec % 100 ))

# TT_TEST_PORT_RANDOM=1 → bind :0; backend writes actual port to data/test/.port
if [ "${TT_TEST_PORT_RANDOM:-0}" = "1" ]; then
  TT_TEST_PORT=0
fi

TT_TEST_DB="${TT_WORKTREE_ROOT}/data/test/attendance.db"
TT_TEST_MODE=1
TT_BASE_URL="http://127.0.0.1:${TT_TEST_PORT}"

mkdir -p "${TT_WORKTREE_ROOT}/data/test"

export TT_WORKTREE_ROOT TT_TEST_PORT TT_TEST_DB TT_TEST_MODE TT_BASE_URL

cat > "${TT_WORKTREE_ROOT}/data/test/.env" <<EOF
TT_WORKTREE_ROOT=${TT_WORKTREE_ROOT}
TT_TEST_PORT=${TT_TEST_PORT}
TT_TEST_DB=${TT_TEST_DB}
TT_TEST_MODE=${TT_TEST_MODE}
TT_BASE_URL=${TT_BASE_URL}
EOF

echo "[test-env] TT_TEST_PORT=${TT_TEST_PORT} TT_TEST_DB=${TT_TEST_DB}"