package releasepr

import (
	"fmt"
	"testing"

	"github.com/stretchr/testify/assert"

	"github.com/apricote/releaser-pleaser/internal/git"
	"github.com/apricote/releaser-pleaser/internal/versioning"
)

func TestReleasePullRequest_GetOverrides(t *testing.T) {
	tests := []struct {
		name    string
		pr      ReleasePullRequest
		want    ReleaseOverrides
		wantErr assert.ErrorAssertionFunc
	}{
		{
			name:    "empty",
			pr:      ReleasePullRequest{},
			want:    ReleaseOverrides{},
			wantErr: assert.NoError,
		},
		{
			// TODO: Test for multiple version flags
			name: "single version flag",
			pr: ReleasePullRequest{
				Labels: []Label{LabelNextVersionTypeAlpha},
			},
			want: ReleaseOverrides{
				NextVersionType: versioning.NextVersionTypeAlpha,
			},
			wantErr: assert.NoError,
		},
		{
			name: "prefix in description",
			pr: ReleasePullRequest{
				PullRequest: git.PullRequest{
					Description: "```rp-prefix\n## Foo\n\n- Cool thing\n```",
				},
			},
			want:    ReleaseOverrides{Prefix: "## Foo\n\n- Cool thing"},
			wantErr: assert.NoError,
		},
		{
			name: "suffix in description",
			pr: ReleasePullRequest{
				PullRequest: git.PullRequest{
					Description: "```rp-suffix\n## Compatibility\n\nNo compatibility guarantees.\n```",
				},
			},
			want:    ReleaseOverrides{Suffix: "## Compatibility\n\nNo compatibility guarantees."},
			wantErr: assert.NoError,
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			got, err := tt.pr.GetOverrides()
			if !tt.wantErr(t, err, fmt.Sprintf("GetOverrides()")) {
				return
			}
			assert.Equalf(t, tt.want, got, "GetOverrides()")
		})
	}
}

func TestReleasePullRequest_ChangelogText(t *testing.T) {
	tests := []struct {
		name        string
		description string
		want        string
		wantErr     assert.ErrorAssertionFunc
	}{
		{
			name:        "no section",
			description: "# Foo\n",
			want:        "",
			wantErr:     assert.NoError,
		},
		{
			name: "with section",
			description: `# Foobar

<!-- section-start changelog -->
This is the changelog

## Awesome

### New

#### Changes
<!-- section-end changelog -->

Suffix Things
`,
			want: `This is the changelog

## Awesome

### New

#### Changes
`,
			wantErr: assert.NoError,
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			pr := &ReleasePullRequest{
				PullRequest: git.PullRequest{
					Description: tt.description,
				},
			}
			got, err := pr.ChangelogText()
			if !tt.wantErr(t, err, fmt.Sprintf("ChangelogText()")) {
				return
			}
			assert.Equalf(t, tt.want, got, "ChangelogText()")
		})
	}
}

func TestReleasePullRequest_SetTitle(t *testing.T) {
	type args struct {
		branch  string
		version string
	}
	tests := []struct {
		name string
		pr   *ReleasePullRequest
		args args
		want string
	}{
		{
			name: "simple update",
			pr: &ReleasePullRequest{
				PullRequest: git.PullRequest{
					Title: "foo: bar",
				},
			},
			args: args{
				branch:  "main",
				version: "v1.0.0",
			},
			want: "chore(main): release v1.0.0",
		},
		{
			name: "no previous title",
			pr:   &ReleasePullRequest{},
			args: args{
				branch:  "release-1.x",
				version: "v1.1.1-rc.0",
			},
			want: "chore(release-1.x): release v1.1.1-rc.0",
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			tt.pr.SetTitle(tt.args.branch, tt.args.version)

			assert.Equal(t, tt.want, tt.pr.Title)
		})
	}
}

func TestReleasePullRequest_SetDescription(t *testing.T) {

	tests := []struct {
		name           string
		changelogEntry string
		overrides      ReleaseOverrides
		want           string
		wantErr        assert.ErrorAssertionFunc
	}{
		{
			name:           "no overrides",
			changelogEntry: `## v1.0.0`,
			overrides:      ReleaseOverrides{},
			want: `<!-- section-start changelog -->
## v1.0.0
<!-- section-end changelog -->

---

<details>
  <summary><h4>PR by <a href="https://github.com/apricote/releaser-pleaser">releaser-pleaser</a> 🤖</h4></summary>

If you want to modify the proposed release, add you overrides here. You can learn more about the options in the docs.

## Release Notes

### Prefix / Start

This will be added to the start of the release notes.

` + "```" + `rp-prefix
` + "```" + `

### Suffix / End

This will be added to the end of the release notes.

` + "```" + `rp-suffix
` + "```" + `

</details>
`,
			wantErr: assert.NoError,
		},
		{
			name:           "existing overrides",
			changelogEntry: `## v1.0.0`,
			overrides: ReleaseOverrides{
				Prefix: "This release is awesome!",
				Suffix: "Fooo",
			},
			want: `<!-- section-start changelog -->
## v1.0.0
<!-- section-end changelog -->

---

<details>
  <summary><h4>PR by <a href="https://github.com/apricote/releaser-pleaser">releaser-pleaser</a> 🤖</h4></summary>

If you want to modify the proposed release, add you overrides here. You can learn more about the options in the docs.

## Release Notes

### Prefix / Start

This will be added to the start of the release notes.

` + "```" + `rp-prefix
This release is awesome!
` + "```" + `

### Suffix / End

This will be added to the end of the release notes.

` + "```" + `rp-suffix
Fooo
` + "```" + `

</details>
`,
			wantErr: assert.NoError,
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			pr := &ReleasePullRequest{}
			err := pr.SetDescription(tt.changelogEntry, tt.overrides)
			if !tt.wantErr(t, err) {
				return
			}

			assert.Equal(t, tt.want, pr.Description)
		})
	}
}