# Copyright 2020 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import("//build/components.gni")
import("//build/fuzz.gni")
import("//build/rust/rustc_binary.gni")
import("//build/rust/rustc_fuzzer.gni")
import("//build/rust/rustc_library.gni")
import("//src/storage/fs_test/suite.gni")

fatfs_deps = [
  "//sdk/fidl/fuchsia.fs:fuchsia.fs_rust",
  "//sdk/fidl/fuchsia.io:fuchsia.io_rust",
  "//src/lib/fidl/rust/fidl",
  "//src/lib/fuchsia-async",
  "//src/lib/zircon/rust:fuchsia-zircon",
  "//src/storage/lib/block_client/rust:remote-block-device",
  "//src/storage/lib/vfs/rust:vfs",
  "//third_party/rust_crates:anyhow",
  "//third_party/rust_crates:async-trait",
  "//third_party/rust_crates:chrono",
  "//third_party/rust_crates:fatfs",
  "//third_party/rust_crates:libc",
  "//third_party/rust_crates:scopeguard",
]

fatfs_sources = [
  "src/directory.rs",
  "src/file.rs",
  "src/filesystem.rs",
  "src/lib.rs",
  "src/node.rs",
  "src/refs.rs",
  "src/types.rs",
  "src/util.rs",
]

rustc_library("lib") {
  edition = "2021"
  with_unit_tests = true
  name = "fuchsia_fatfs"

  deps = fatfs_deps
  test_deps = [
    "//src/lib/fuchsia",
    "//third_party/rust_crates:assert_matches",
    "//third_party/rust_crates:futures",
  ]
  sources = fatfs_sources
}

fuchsia_component("fuchsia-fatfs-test") {
  testonly = true
  deps = [ ":lib_test" ]
  manifest = "meta/fuchsia_fatfs_lib_test.cml"
}

fuchsia_test_package("fuchsia-fatfs-tests") {
  test_components = [ ":fuchsia-fatfs-test" ]
}

rustc_fuzzer("fat-fuzzer") {
  edition = "2021"
  rustfunction = "fuzz_fatfs"

  sources = [ "src/fuzzer.rs" ] + fatfs_sources
  deps = fatfs_deps + [
           "//src/lib/fuzzing/rust:fuzz",
           "//third_party/rust_crates:futures",
         ]
}

fuchsia_fuzzer_component("fat-fuzzer-component") {
  manifest = "meta/fat-fuzzer.cml"
  deps = [
    ":fat-fuzzer",
    "corpus",
  ]
}

fuchsia_fuzzer_package("fuchsia-fatfs-fuzzer") {
  rust_fuzzer_components = [ ":fat-fuzzer-component" ]
}

rustc_binary("fatfs") {
  edition = "2021"

  deps = [
    ":lib",
    "//sdk/fidl/fuchsia.fs:fuchsia.fs_rust",
    "//sdk/fidl/fuchsia.hardware.block:fuchsia.hardware.block_rust",
    "//sdk/fidl/fuchsia.io:fuchsia.io_rust",
    "//sdk/fidl/fuchsia.process.lifecycle:fuchsia.process.lifecycle_rust",
    "//src/lib/fidl/rust/fidl",
    "//src/lib/fuchsia",
    "//src/lib/fuchsia-async",
    "//src/lib/fuchsia-component",
    "//src/lib/fuchsia-runtime",
    "//src/lib/zircon/rust:fuchsia-zircon",
    "//src/storage/block_adapter:block_adapter_lib",
    "//src/storage/fidl/fuchsia.fs.startup:fuchsia.fs.startup_rust",
    "//src/storage/lib/block_client/rust:remote-block-device",
    "//src/storage/lib/vfs/rust:vfs",
    "//third_party/rust_crates:anyhow",
    "//third_party/rust_crates:futures",
    "//third_party/rust_crates:tracing",
  ]

  sources = [
    "src/component.rs",
    "src/main.rs",
  ]
}

fuchsia_package("fuchsia-fatfs") {
  deps = [ "//src/storage/fuchsia-fatfs/mounter:fatfs-mounter" ]
}

fuchsia_shell_package("fatfs-bin") {
  deps = [ ":fatfs" ]
}

fuchsia_component("fatfs-component") {
  component_name = "fatfs"
  manifest = "meta/fatfs.cml"
  deps = [
    ":fatfs",
    "//zircon/third_party/uapp/fsck-msdosfs",
    "//zircon/third_party/uapp/mkfs-msdosfs",
  ]
}

# FAT has different filename rules compared to other filesystems, so we substitute the
# filename tests in the test suite with a different set.
test("fat_filename_tests") {
  sources = [ "filename_tests.cc" ]
  deps = [
    "//src/lib/fxl/test:gtest_main",
    "//src/storage/fs_test",
  ]
}

storage_driver_test_realm_v2_component("fatfs-fat-filename-tests") {
  deps = [
    ":fat_filename_tests",
    ":test_fatfs_component_manifest_shard",
  ]
}

expect_includes("test_fatfs_component_manifest_shard") {
  testonly = true
  includes = [ "meta/test_fatfs.shard.cml" ]
}

fs_test_suite("fatfs") {
  deps = [ ":fatfs-component" ]
  component_deps = [ ":test_fatfs_component_manifest_shard" ]
  config = {
    disk_format = 4
    is_case_sensitive = false
    is_journaled = false
    timestamp_granularity = 2000000000
    supports_hard_links = false
    supports_resize = false
    supports_sparse_files = false
    max_file_size = 4294967295
    is_slow = true
    sectors_per_cluster = 2
  }

  omit_components = [
    ":fatfs-filename-tests",
    ":fatfs-query-filesystem-tests",
  ]
  extra_components = [ ":fatfs-fat-filename-tests" ]

  # TODO(https://fxbug.dev/297201368): Remove when these tests pass on RISC-V.
  if (current_cpu == "riscv64") {
    omit_components += [
      ":fatfs-full-tests",
      ":fatfs-attr-tests",
    ]
  }
}

slow_fs_test_suite("fatfs") {
  deps = [
    ":fatfs-component",
    ":fatfs_fs_test_config",
    "//src/storage/fuchsia-fatfs:fatfs",
  ]
  component_deps = [ ":test_fatfs_component_manifest_shard" ]

  # TODO(b/297201368): These tests are disabled in the regular test suite above due to timeouts.
  if (current_cpu == "riscv64") {
    extra_components = [
      ":fatfs-full-tests",
      ":fatfs-attr-tests",
    ]
  }
}

group("tests") {
  testonly = true
  deps = [
    ":fatfs-fs-tests",
    ":fatfs-slow-fs-tests",
    ":fuchsia-fatfs-fuzzer",
    ":fuchsia-fatfs-tests",
    "//src/storage/fuchsia-fatfs/mounter:tests",
  ]
}

# This group includes mkfs and fsck and the block_adapter tool that is required to run them.
# fs-management requires all of these to be able to run mkfs and fsck for fatfs.
group("tools") {
  deps = [
    "//src/storage/block_adapter",
    "//zircon/third_party/uapp/fsck-msdosfs",
    "//zircon/third_party/uapp/mkfs-msdosfs",
  ]
}