// Copyright 2022 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
//    list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
//    this list of conditions and the following disclaimer in the documentation
//    and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
//    contributors may be used to endorse or promote products derived from
//    this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

package roll

import (
	"testing"

	"dawn.googlesource.com/dawn/tools/src/buildbucket"
	"dawn.googlesource.com/dawn/tools/src/cmd/cts/common"
	"dawn.googlesource.com/dawn/tools/src/git"
	"github.com/google/go-cmp/cmp"
)

func MustParseHash(s string) git.Hash {
	hash, err := git.ParseHash("d5e605a556408eaeeda64fb9d33c3f596fd90b70")
	if err != nil {
		panic(err)
	}
	return hash
}

func rollCommitMessageFor(ctsGitURL string) string {
	r := roller{
		cfg: common.Config{
			Builders: map[string]buildbucket.Builder{
				"Win":   {Project: "chromium", Bucket: "try", Builder: "win-dawn-rel"},
				"Mac":   {Project: "dawn", Bucket: "try", Builder: "mac-dbg"},
				"Linux": {Project: "chromium", Bucket: "try", Builder: "linux-dawn-rel"},
			},
		},
		flags: rollerFlags{ctsGitURL: ctsGitURL},
	}

	r.cfg.Git.CTS.Host = "chromium.googlesource.com"
	r.cfg.Git.CTS.Project = "external/github.com/gpuweb/cts"

	msg := r.rollCommitMessage(
		"d5e605a556408eaeeda64fb9d33c3f596fd90b70",
		"29275672eefe76986bd4baa7c29ed17b66616b1b",
		[]git.CommitInfo{
			{
				Hash:    MustParseHash("d5e605a556408eaeeda64fb9d33c3f596fd90b70"),
				Subject: "Added thing A",
			},
			{
				Hash:    MustParseHash("29275672eefe76986bd4baa7c29ed17b66616b1b"),
				Subject: "Tweaked thing B",
			},
		},
		"I4aa059c6c183e622975b74dbdfdfe0b12341ae15",
	)

	return msg
}

func TestRollCommitMessageFromInternal(t *testing.T) {
	msg := rollCommitMessageFor("https://chromium.googlesource.com/external/github.com/gpuweb/cts")
	expect := `Roll third_party/webgpu-cts/ d5e605a55..29275672e (2 commits)

Regenerated:
 - expectations.txt
 - compat-expectations.txt
 - ts_sources.txt
 - test_list.txt
 - resource_files.txt
 - webtest .html files


https://chromium.googlesource.com/external/github.com/gpuweb/cts/+log/d5e605a55640..29275672eefe
 - d5e605 Added thing A
 - d5e605 Tweaked thing B

Created with './tools/run cts roll'

Cq-Include-Trybots: luci.chromium.try:linux-dawn-rel,win-dawn-rel;luci.dawn.try:mac-dbg
Include-Ci-Only-Tests: true
Change-Id: I4aa059c6c183e622975b74dbdfdfe0b12341ae15
`
	if diff := cmp.Diff(msg, expect); diff != "" {
		t.Errorf("rollCommitMessage: %v", diff)
	}
}

func TestRollCommitMessageFromExternal(t *testing.T) {
	msg := rollCommitMessageFor("https://www.github.com/a_cts_contributor/cts.git")

	expect := `[DO NOT` + ` SUBMIT] Roll third_party/webgpu-cts/ d5e605a55..29275672e (2 commits)

Rolled from external repo: https://www.github.com/a_cts_contributor/cts.git

Regenerated:
 - expectations.txt
 - compat-expectations.txt
 - ts_sources.txt
 - test_list.txt
 - resource_files.txt
 - webtest .html files


https://chromium.googlesource.com/external/github.com/gpuweb/cts/+log/d5e605a55640..29275672eefe
 - d5e605 Added thing A
 - d5e605 Tweaked thing B

Created with './tools/run cts roll'

Cq-Include-Trybots: luci.chromium.try:linux-dawn-rel,win-dawn-rel;luci.dawn.try:mac-dbg
Include-Ci-Only-Tests: true
Commit: false
Change-Id: I4aa059c6c183e622975b74dbdfdfe0b12341ae15
`
	if diff := cmp.Diff(msg, expect); diff != "" {
		t.Errorf("rollCommitMessage: %v", diff)
	}
}