package api

import (
	"context"
	"testing"

	"go.uber.org/zap"
)

func TestApiMock(t *testing.T) {
	mock := &ApiMock{
		PdfMock: func(ctx context.Context, logger *zap.Logger, input, outputPath string, options Options) error {
			return nil
		},
		ExtensionsMock: func() []string {
			return nil
		},
	}

	err := mock.Pdf(context.Background(), zap.NewNop(), "", "", Options{})
	if err != nil {
		t.Errorf("expected no error from ApiMock.Pdf, but got: %v", err)
	}

	ext := mock.Extensions()
	if ext != nil {
		t.Errorf("expected nil result from ApiMock.Extensions, but got: %v", ext)
	}
}

func TestProviderMock(t *testing.T) {
	mock := &ProviderMock{
		LibreOfficeMock: func() (Uno, error) {
			return nil, nil
		},
	}

	_, err := mock.LibreOffice()
	if err != nil {
		t.Errorf("expected no error from ProviderMock.LibreOffice, but got: %v", err)
	}
}

func TestLibreOfficeMock(t *testing.T) {
	for _, tc := range []struct {
		scenario    string
		mock        *libreOfficeMock
		expectError bool
	}{
		{
			scenario: "success",
			mock: &libreOfficeMock{
				pdfMock: func(ctx context.Context, logger *zap.Logger, input, outputPath string, options Options) error {
					return nil
				},
			},
			expectError: false,
		},
		{
			scenario: "ErrCoreDumped (first call)",
			mock: &libreOfficeMock{
				pdfMock: func(ctx context.Context, logger *zap.Logger, input, outputPath string, options Options) error {
					return ErrCoreDumped
				},
			},
			expectError: true,
		},
		{
			scenario: "ErrCoreDumped (second call)",
			mock: func() *libreOfficeMock {
				m := &libreOfficeMock{
					pdfMock: func(ctx context.Context, logger *zap.Logger, input, outputPath string, options Options) error {
						return ErrCoreDumped
					},
				}
				m.pdf(context.Background(), zap.NewNop(), "", "", Options{})
				return m
			}(),
			expectError: false,
		},
	} {
		t.Run(tc.scenario, func(t *testing.T) {
			err := tc.mock.pdf(context.Background(), zap.NewNop(), "", "", Options{})

			if !tc.expectError && err != nil {
				t.Fatalf("expected no error from libreOfficeMock.pdf but got: %v", err)
			}

			if tc.expectError && err == nil {
				t.Fatal("expected error from libreOfficeMock.pdf but got none")
			}
		})
	}
}