# ============================================================================
# 缓存管理模块测试（src/lib/cache.sh）
# ============================================================================

setup() {
  CACHE_DIR="$(mktemp -d)"
  TMDB_LANG="zh-CN"
}

teardown() {
  rm -rf "$CACHE_DIR"
}

# cache_path：搜索类用 md5 哈希文件名
test_cache_path_search_endpoint() {
  local p
  p="$(cache_path "/search/movie" "query=刀剑&year=2020")"
  assert_eq "$CACHE_DIR/tmdb/search/movie/$(cache_key_hash "query=刀剑&year=2020").json" "$p"
}

# cache_path：tv 详情含语言段
test_cache_path_tv_detail() {
  assert_eq "$CACHE_DIR/tmdb/tv/12345.zh-CN.json" "$(cache_path "/tv/12345" "x")"
}

# cache_path：季数据含语言段
test_cache_path_tv_season() {
  assert_eq "$CACHE_DIR/tmdb/tv/12345/season/1.zh-CN.json" "$(cache_path "/tv/12345/season/1" "x")"
}

# cache_path：movie 详情含语言段
test_cache_path_movie_detail() {
  assert_eq "$CACHE_DIR/tmdb/movie/6789.zh-CN.json" "$(cache_path "/movie/6789" "x")"
}

# cache_path：语言切换后路径变化（缓存自动失效）
test_cache_path_lang_switch_changes_path() {
  TMDB_LANG="ja-JP"
  assert_eq "$CACHE_DIR/tmdb/tv/12345.ja-JP.json" "$(cache_path "/tv/12345" "x")"
}

# cache_key：拼接参数并追加 lang
test_cache_key_joins_args_with_lang() {
  assert_eq "query=刀剑&lang=zh-CN" "$(cache_key "query=刀剑")"
  assert_eq "a=1&b=2&lang=zh-CN" "$(cache_key "a=1" "&b=2")"
}

# cache_key_hash：md5 稳定
test_cache_key_hash_stable() {
  local h1 h2
  h1="$(cache_key_hash "query=hello")"
  h2="$(cache_key_hash "query=hello")"
  assert_eq "$h1" "$h2"
  assert_eq "5d41402abc4b2a76b9719d911017c592" "$(cache_key_hash "hello")"
}

# cache_expired：TTL 内不失效，超期失效
test_cache_expired_ttl() {
  local f="$CACHE_DIR/f.json"
  echo '{}' >"$f"
  touch -d "2 days ago" "$f"
  assert_success cache_expired "$f" 1
  assert_failure cache_expired "$f" 30
  # 新文件不失效
  echo '{}' >"$f"
  assert_failure cache_expired "$f" 1
}