# ============================================================================
# 账本与冷却模块测试（src/lib/ledger.sh）
# ============================================================================

setup() {
  TEST_DIR="$(mktemp -d)"
  CACHE_DIR="$TEST_DIR/cache"
  DRY_RUN=false
  FAIL_RETRY_COOLDOWN_HOURS=1
  LEDGER_LINKED=()
  LEDGER_INODE=()
  COOLDOWN_MAP=()
  CORRECTIONS_MAP=()
}

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

# ledger_mark_linked + ledger_is_linked：标记后判定已链接
test_ledger_mark_and_is_linked() {
  local src="$TEST_DIR/a.mkv" dest="$TEST_DIR/dest/a.mkv"
  mkdir -p "$TEST_DIR/dest"
  echo data >"$src"
  ln "$src" "$dest"
  ledger_mark_linked "$src" "$dest"
  assert_success ledger_is_linked "$src"
}

# ledger_is_linked：目标被删 → 失效（重新识别）
test_ledger_is_linked_invalid_when_dest_deleted() {
  local src="$TEST_DIR/a.mkv" dest="$TEST_DIR/dest/a.mkv"
  mkdir -p "$TEST_DIR/dest"
  echo data >"$src"
  ln "$src" "$dest"
  ledger_mark_linked "$src" "$dest"
  rm -f "$dest"
  assert_failure ledger_is_linked "$src"
}

# ledger_is_linked：未标记 → 未链接
test_ledger_is_linked_unmarked() {
  local src="$TEST_DIR/a.mkv"
  echo data >"$src"
  assert_failure ledger_is_linked "$src"
}

# cooldown_set + cooldown_active：冷却期内判定
test_cooldown_set_and_active() {
  local src="$TEST_DIR/a.mkv"
  echo data >"$src"
  cooldown_set "$src" "request_failed"
  assert_success cooldown_active "$src"
}

# cooldown_active：源文件消失 → 不冷却（允许重试）
test_cooldown_inactive_when_src_gone() {
  local src="$TEST_DIR/a.mkv"
  echo data >"$src"
  cooldown_set "$src" "request_failed"
  rm -f "$src"
  assert_failure cooldown_active "$src"
}

# cooldown_active：过期 → 不冷却
test_cooldown_inactive_when_expired() {
  local src="$TEST_DIR/a.mkv"
  echo data >"$src"
  COOLDOWN_MAP["$src"]=$(($(date +%s) - 10))
  assert_failure cooldown_active "$src"
}

# ledger_flush：落盘 linked.json 并可重新加载
test_ledger_flush_roundtrip() {
  local src="$TEST_DIR/a.mkv" dest="$TEST_DIR/dest/a.mkv"
  mkdir -p "$TEST_DIR/dest"
  echo data >"$src"
  ln "$src" "$dest"
  ledger_mark_linked "$src" "$dest"
  ledger_flush
  assert_file_exists "$CACHE_DIR/media_organizer/linked.json"
  LEDGER_LINKED=()
  LEDGER_INODE=()
  ledger_load
  assert_success ledger_is_linked "$src"
}

# ledger_flush：干运行零持久化副作用
test_ledger_flush_skipped_in_dry_run() {
  local src="$TEST_DIR/a.mkv"
  echo data >"$src"
  ledger_mark_linked "$src" "$TEST_DIR/dest.mkv"
  DRY_RUN=true
  ledger_flush
  assert_file_absent "$CACHE_DIR/media_organizer/linked.json"
}