// Copyright 2024 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package cc

import (
	"runtime"
	"strings"
	"testing"

	"android/soong/android"
)

func wasGenerated(t *testing.T, m *android.TestingModule, fileName string, ruleType string) {
	t.Helper()
	ruleName := "<nil>"
	if rule := m.MaybeOutput(fileName).Rule; rule != nil {
		ruleName = rule.String()
	}
	if !strings.HasSuffix(ruleName, ruleType) {
		t.Errorf("Main Cmake file wasn't generated properly, expected rule %v, found %v", ruleType, ruleName)
	}
}

func TestEmptyCmakeSnapshot(t *testing.T) {
	t.Parallel()
	result := PrepareForIntegrationTestWithCc.RunTestWithBp(t, `
		cc_cmake_snapshot {
			name: "foo",
			modules_host: [],
			modules_system: [],
			modules_vendor: [],
			prebuilts: ["libc++"],
			include_sources: true,
		}`)

	if runtime.GOOS != "linux" {
		t.Skip("CMake snapshots are only supported on Linux")
	}

	snapshotModule := result.ModuleForTests(t, "foo", "linux_glibc_x86_64")

	wasGenerated(t, &snapshotModule, "CMakeLists.txt", "rawFileCopy")
	wasGenerated(t, &snapshotModule, "foo.zip", "")
}

func TestCmakeSnapshotWithBinary(t *testing.T) {
	t.Parallel()
	xtra := android.FixtureAddTextFile("some/module/Android.bp", `
		cc_binary {
			name: "foo_binary",
			host_supported: true,
			cmake_snapshot_supported: true,
		}
	`)
	result := android.GroupFixturePreparers(PrepareForIntegrationTestWithCc, xtra).RunTestWithBp(t, `
		cc_cmake_snapshot {
			name: "foo",
			modules_system: [
				"foo_binary",
			],
			include_sources: true,
		}`)

	if runtime.GOOS != "linux" {
		t.Skip("CMake snapshots are only supported on Linux")
	}

	snapshotModule := result.ModuleForTests(t, "foo", "linux_glibc_x86_64")

	wasGenerated(t, &snapshotModule, "some/module/CMakeLists.txt", "rawFileCopy")
}

func TestCmakeSnapshotAsTestData(t *testing.T) {
	t.Parallel()
	result := PrepareForIntegrationTestWithCc.RunTestWithBp(t, `
		cc_test {
			name: "foo_test",
			gtest: false,
			srcs: [
				"foo_test.c",
			],
			data: [
				":foo",
			],
			target: {
				android: {enabled: false},
			},
		}

		cc_cmake_snapshot {
			name: "foo",
			modules_system: [],
			prebuilts: ["libc++"],
			include_sources: true,
		}`)

	if runtime.GOOS != "linux" {
		t.Skip("CMake snapshots are only supported on Linux")
	}

	snapshotModule := result.ModuleForTests(t, "foo", "linux_glibc_x86_64")

	wasGenerated(t, &snapshotModule, "CMakeLists.txt", "rawFileCopy")
	wasGenerated(t, &snapshotModule, "foo.zip", "")
}