#!/usr/bin/env bash
# validate-ios-skipped-tests.sh — Fail when iOS test results contain non-allowlisted skipped tests.
set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"

usage() {
    cat <<'EOF'
Usage:
  scripts/validate-ios-skipped-tests.sh <xcresult_path> [allowlist_file]

Arguments:
  xcresult_path   Path to .xcresult bundle generated by xcodebuild test
  allowlist_file  Optional allowlist of skipped test names (one per line, # comments allowed)
                  Default: audit/ios-skipped-tests-allowlist.txt
EOF
}

if [[ "${1:-}" == "--help" || "${1:-}" == "-h" ]]; then
    usage
    exit 0
fi

RESULT_PATH="${1:-}"
if [[ -z "$RESULT_PATH" ]]; then
    usage
    exit 1
fi

ALLOWLIST_PATH="${2:-$PROJECT_ROOT/audit/ios-skipped-tests-allowlist.txt}"

require_cmd() {
    if ! command -v "$1" >/dev/null 2>&1; then
        echo "Missing required command: $1" >&2
        exit 1
    fi
}

require_cmd xcrun
require_cmd jq
require_cmd sort
require_cmd comm
require_cmd mktemp

if [[ ! -d "$RESULT_PATH" ]]; then
    echo "xcresult bundle not found: $RESULT_PATH" >&2
    exit 1
fi

TMP_JSON="$(mktemp)"
TMP_SKIPPED="$(mktemp)"
TMP_ALLOWLIST="$(mktemp)"
TMP_UNALLOWED="$(mktemp)"

cleanup() {
    rm -f "$TMP_JSON" "$TMP_SKIPPED" "$TMP_ALLOWLIST" "$TMP_UNALLOWED"
}
trap cleanup EXIT

if ! xcrun xcresulttool get test-results tests --path "$RESULT_PATH" --format json > "$TMP_JSON" 2>/dev/null; then
    echo "Failed to parse xcresult test results: $RESULT_PATH" >&2
    exit 1
fi

jq -r '
  .. | objects
  | select((.result == "Skipped") or (.status == "Skipped") or (.outcome == "Skipped") or (.testStatus == "Skipped"))
  | (.name // .identifier // empty)
' "$TMP_JSON" | sed '/^[[:space:]]*$/d' | sort -u > "$TMP_SKIPPED"

if [[ -f "$ALLOWLIST_PATH" ]]; then
    {
        grep -vE '^[[:space:]]*(#|$)' "$ALLOWLIST_PATH" || true
    } | sed 's/[[:space:]]*$//' | sed '/^[[:space:]]*$/d' | sort -u > "$TMP_ALLOWLIST"
else
    : > "$TMP_ALLOWLIST"
fi

if [[ ! -s "$TMP_SKIPPED" ]]; then
    echo "Skipped-test gate: PASS (no skipped iOS tests)"
    exit 0
fi

comm -23 "$TMP_SKIPPED" "$TMP_ALLOWLIST" > "$TMP_UNALLOWED"

if [[ -s "$TMP_UNALLOWED" ]]; then
    echo "Skipped-test gate: FAIL (non-allowlisted skipped iOS tests found)"
    cat "$TMP_UNALLOWED" | sed 's/^/  - /'
    if [[ -s "$TMP_ALLOWLIST" ]]; then
        echo "Allowlist used: $ALLOWLIST_PATH"
    else
        echo "Allowlist is empty: $ALLOWLIST_PATH"
    fi
    exit 1
fi

echo "Skipped-test gate: PASS (all skipped iOS tests are allowlisted)"
exit 0