package config

import "testing"

func TestValidatePublishTransformPolicy(t *testing.T) {
	tests := publishTransformPolicyCases()
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			err := ValidatePublishTransformPolicy(tt.publish, tt.transform)
			if tt.wantErr && err == nil {
				t.Fatal("ValidatePublishTransformPolicy() error = nil, want error")
			}
			if !tt.wantErr && err != nil {
				t.Fatalf("ValidatePublishTransformPolicy() error = %v", err)
			}
		})
	}
}

func TestValidateChecksPublishTransformPolicy(t *testing.T) {
	tests := publishTransformPolicyCases()
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			cfg := Config{Pipelines: []Pipeline{{
				ID: "reports",
				Source: Backend{
					Backend: BackendLocal,
					Path:    "/source",
				},
				Destinations: []Destination{{
					ID:        "archive",
					Backend:   BackendLocal,
					Path:      "/destination",
					Publish:   &tt.publish,
					Transform: tt.transform,
				}},
			}}}
			ApplyDefaults(&cfg)
			err := Validate(cfg)
			if tt.wantErr && err == nil {
				t.Fatal("Validate() error = nil, want error")
			}
			if !tt.wantErr && err != nil {
				t.Fatalf("Validate() error = %v", err)
			}
		})
	}
}

type publishTransformPolicyCase struct {
	name      string
	publish   PublishPolicy
	transform Transform
	wantErr   bool
}

func publishTransformPolicyCases() []publishTransformPolicyCase {
	return []publishTransformPolicyCase{
		{
			name:    "source only allowed",
			publish: PublishPolicy{Source: true},
		},
		{
			name:    "html only sidecar allowed",
			publish: PublishPolicy{HTML: true},
			transform: Transform{MarkdownToHTML: &MarkdownToHTML{
				Enabled: true,
				Mode:    TransformModeSidecar,
			}},
		},
		{
			name:    "source and html sidecar allowed",
			publish: PublishPolicy{Source: true, HTML: true},
			transform: Transform{MarkdownToHTML: &MarkdownToHTML{
				Enabled: true,
				Mode:    TransformModeSidecar,
			}},
		},
		{
			name:    "no outputs rejected",
			publish: PublishPolicy{},
			wantErr: true,
		},
		{
			name:    "html without transform rejected",
			publish: PublishPolicy{HTML: true},
			wantErr: true,
		},
		{
			name:    "html with disabled transform rejected",
			publish: PublishPolicy{HTML: true},
			transform: Transform{MarkdownToHTML: &MarkdownToHTML{
				Enabled: false,
				Mode:    TransformModeSidecar,
			}},
			wantErr: true,
		},
		{
			name:    "html with wrong mode rejected",
			publish: PublishPolicy{HTML: true},
			transform: Transform{MarkdownToHTML: &MarkdownToHTML{
				Enabled: true,
				Mode:    "inline",
			}},
			wantErr: true,
		},
		{
			name:    "enabled markdown wrong mode rejected",
			publish: PublishPolicy{Source: true},
			transform: Transform{MarkdownToHTML: &MarkdownToHTML{
				Enabled: true,
				Mode:    "inline",
			}},
			wantErr: true,
		},
		{
			name:    "disabled markdown empty mode allowed",
			publish: PublishPolicy{Source: true},
			transform: Transform{MarkdownToHTML: &MarkdownToHTML{
				Enabled: false,
			}},
		},
		{
			name:    "disabled markdown sidecar mode allowed",
			publish: PublishPolicy{Source: true},
			transform: Transform{MarkdownToHTML: &MarkdownToHTML{
				Enabled: false,
				Mode:    TransformModeSidecar,
			}},
		},
		{
			name:    "disabled markdown wrong mode rejected",
			publish: PublishPolicy{Source: true},
			transform: Transform{MarkdownToHTML: &MarkdownToHTML{
				Enabled: false,
				Mode:    "inline",
			}},
			wantErr: true,
		},
	}
}