#!/usr/bin/env bash
# Проверка окружения shell-runner перед smoke/release. Ничего не устанавливает.
set -euo pipefail

cd "$(dirname "$0")/.."

release=0
case "${1:-}" in
    "") ;;
    --release) release=1 ;;
    -h | --help)
        echo "Usage: $0 [--release]"
        exit 0
        ;;
    *)
        echo "Usage: $0 [--release]" >&2
        exit 2
        ;;
esac

failures=()

ok() { printf 'OK   %s\n' "$*"; }

fail() {
    printf 'FAIL %s\n' "$*"
    failures+=("$*")
}

if [[ -n "${BASH_VERSION:-}" ]]; then
    ok "bash ${BASH_VERSION}"
else
    fail "bash: не найден"
fi

if command -v java >/dev/null 2>&1; then
    java_line=$(java -version 2>&1 | head -n 1 || true)
    if [[ "$java_line" =~ version\ \"21([.\"-]|$) ]]; then
        ok "java 21: ${java_line:-java}"
    else
        fail "java: нужна версия 21, найдено: ${java_line:-неизвестно}"
    fi
else
    fail "java: не найден в PATH"
fi

if command -v docker >/dev/null 2>&1; then
    docker_line=$(docker --version 2>/dev/null | head -n 1 || true)
    ok "docker: ${docker_line:-команда доступна}"
else
    fail "docker: не найден в PATH"
fi

if command -v docker >/dev/null 2>&1; then
    compose_short=$(docker compose version --short 2>/dev/null | head -n 1 || true)
    if [[ -z "$compose_short" ]]; then
        compose_short=$(docker compose version 2>/dev/null | head -n 1 || true)
        compose_short=${compose_short#Docker Compose version }
        compose_short=${compose_short#v}
    fi
    compose_short=${compose_short#v}
    compose_major=${compose_short%%.*}
    if [[ "$compose_major" =~ ^[0-9]+$ ]] && ((compose_major >= 2)); then
        ok "docker compose v2+: ${compose_short:-неизвестно}"
    else
        fail "docker compose: нужен v2+, найдено: ${compose_short:-версия не определена}"
    fi
else
    fail "docker compose: docker не найден"
fi

if command -v python3 >/dev/null 2>&1; then
    ok "python3: $(python3 --version 2>&1 | head -n 1)"
else
    fail "python3: не найден в PATH"
fi

if ((release)); then
    if command -v node >/dev/null 2>&1; then
        ok "node: $(node --version 2>&1 | head -n 1)"
    else
        fail "node: не найден в PATH"
    fi

    if command -v npx >/dev/null 2>&1; then
        ok "npx: $(npx --version 2>&1 | head -n 1)"
    else
        fail "npx: не найден в PATH"
    fi

    if [[ -d e2e/node_modules ]]; then
        ok "e2e/node_modules: найден"
        playwright_line=$(cd e2e && npx playwright --version 2>/dev/null | head -n 1 || true)
        if [[ -n "$playwright_line" ]]; then
            ok "playwright: $playwright_line"
        else
            fail "npx playwright --version: не удалось получить версию"
        fi
    else
        fail "e2e/node_modules: не найден (выполните: cd e2e && npm ci)"
        fail "npx playwright --version: пропущено без e2e/node_modules"
    fi
fi

echo
if ((${#failures[@]} > 0)); then
    echo "Preflight не пройден, ошибок: ${#failures[@]}."
    printf '  - %s\n' "${failures[@]}"
    exit 1
fi
echo "Preflight пройден."