package app

import (
	"testing"

	"github.com/golang/mock/gomock"
	"github.com/mattermost/focalboard/server/model"

	"github.com/stretchr/testify/require"
)

type blockError struct {
	msg string
}

func (be blockError) Error() string {
	return be.msg
}

func TestInsertBlock(t *testing.T) {
	th, tearDown := SetupTestHelper(t)
	defer tearDown()

	t.Run("success scenerio", func(t *testing.T) {
		boardID := testBoardID
		block := model.Block{BoardID: boardID}
		board := &model.Board{ID: boardID}
		th.Store.EXPECT().GetBoard(boardID).Return(board, nil)
		th.Store.EXPECT().InsertBlock(&block, "user-id-1").Return(nil)
		th.Store.EXPECT().GetMembersForBoard(boardID).Return([]*model.BoardMember{}, nil)
		err := th.App.InsertBlock(block, "user-id-1")
		require.NoError(t, err)
	})

	t.Run("error scenerio", func(t *testing.T) {
		boardID := testBoardID
		block := model.Block{BoardID: boardID}
		board := &model.Board{ID: boardID}
		th.Store.EXPECT().GetBoard(boardID).Return(board, nil)
		th.Store.EXPECT().InsertBlock(&block, "user-id-1").Return(blockError{"error"})
		err := th.App.InsertBlock(block, "user-id-1")
		require.Error(t, err, "error")
	})
}

func TestPatchBlocks(t *testing.T) {
	th, tearDown := SetupTestHelper(t)
	defer tearDown()

	t.Run("patchBlocks success scenerio", func(t *testing.T) {
		blockPatches := model.BlockPatchBatch{}
		th.Store.EXPECT().PatchBlocks(gomock.Eq(&blockPatches), gomock.Eq("user-id-1")).Return(nil)
		err := th.App.PatchBlocks("team-id", &blockPatches, "user-id-1")
		require.NoError(t, err)
	})

	t.Run("patchBlocks error scenerio", func(t *testing.T) {
		blockPatches := model.BlockPatchBatch{}
		th.Store.EXPECT().PatchBlocks(gomock.Eq(&blockPatches), gomock.Eq("user-id-1")).Return(blockError{"error"})
		err := th.App.PatchBlocks("team-id", &blockPatches, "user-id-1")
		require.Error(t, err, "error")
	})
}

func TestDeleteBlock(t *testing.T) {
	th, tearDown := SetupTestHelper(t)
	defer tearDown()

	t.Run("success scenerio", func(t *testing.T) {
		boardID := testBoardID
		board := &model.Board{ID: boardID}
		block := model.Block{
			ID:      "block-id",
			BoardID: board.ID,
		}
		th.Store.EXPECT().GetBlock(gomock.Eq("block-id")).Return(&block, nil)
		th.Store.EXPECT().DeleteBlock(gomock.Eq("block-id"), gomock.Eq("user-id-1")).Return(nil)
		th.Store.EXPECT().GetBoard(gomock.Eq(testBoardID)).Return(board, nil)
		th.Store.EXPECT().GetMembersForBoard(boardID).Return([]*model.BoardMember{}, nil)
		err := th.App.DeleteBlock("block-id", "user-id-1")
		require.NoError(t, err)
	})

	t.Run("error scenerio", func(t *testing.T) {
		boardID := testBoardID
		board := &model.Board{ID: boardID}
		block := model.Block{
			ID:      "block-id",
			BoardID: board.ID,
		}
		th.Store.EXPECT().GetBlock(gomock.Eq("block-id")).Return(&block, nil)
		th.Store.EXPECT().DeleteBlock(gomock.Eq("block-id"), gomock.Eq("user-id-1")).Return(blockError{"error"})
		th.Store.EXPECT().GetBoard(gomock.Eq(testBoardID)).Return(board, nil)
		err := th.App.DeleteBlock("block-id", "user-id-1")
		require.Error(t, err, "error")
	})
}

func TestUndeleteBlock(t *testing.T) {
	th, tearDown := SetupTestHelper(t)
	defer tearDown()

	t.Run("success scenerio", func(t *testing.T) {
		boardID := testBoardID
		board := &model.Board{ID: boardID}
		block := model.Block{
			ID:      "block-id",
			BoardID: board.ID,
		}
		th.Store.EXPECT().GetBlockHistory(
			gomock.Eq("block-id"),
			gomock.Eq(model.QueryBlockHistoryOptions{Limit: 1, Descending: true}),
		).Return([]model.Block{block}, nil)
		th.Store.EXPECT().UndeleteBlock(gomock.Eq("block-id"), gomock.Eq("user-id-1")).Return(nil)
		th.Store.EXPECT().GetBlock(gomock.Eq("block-id")).Return(&block, nil)
		th.Store.EXPECT().GetBoard(boardID).Return(board, nil)
		th.Store.EXPECT().GetMembersForBoard(boardID).Return([]*model.BoardMember{}, nil)
		_, err := th.App.UndeleteBlock("block-id", "user-id-1")
		require.NoError(t, err)
	})

	t.Run("error scenerio", func(t *testing.T) {
		block := model.Block{
			ID: "block-id",
		}
		th.Store.EXPECT().GetBlockHistory(
			gomock.Eq("block-id"),
			gomock.Eq(model.QueryBlockHistoryOptions{Limit: 1, Descending: true}),
		).Return([]model.Block{block}, nil)
		th.Store.EXPECT().UndeleteBlock(gomock.Eq("block-id"), gomock.Eq("user-id-1")).Return(blockError{"error"})
		th.Store.EXPECT().GetBlock(gomock.Eq("block-id")).Return(&block, nil)
		_, err := th.App.UndeleteBlock("block-id", "user-id-1")
		require.Error(t, err, "error")
	})
}