// SPDX-FileCopyrightText: 2021 The Go Language Server Authors
// SPDX-License-Identifier: BSD-3-Clause

package protocol

import (
	"fmt"
	"reflect"
	"testing"

	"github.com/google/go-cmp/cmp"
	"github.com/google/go-cmp/cmp/cmpopts"
	"github.com/segmentio/encoding/json"
)

func TestCancelParams(t *testing.T) {
	t.Parallel()

	const want = `{"id":"testID"}`
	wantType := CancelParams{
		ID: "testID",
	}

	t.Run("Marshal", func(t *testing.T) {
		t.Parallel()

		tests := []struct {
			name           string
			field          CancelParams
			want           string
			wantMarshalErr bool
			wantErr        bool
		}{
			{
				name:           "Valid",
				field:          wantType,
				want:           want,
				wantMarshalErr: false,
				wantErr:        false,
			},
		}

		for _, tt := range tests {
			tt := tt
			t.Run(tt.name, func(t *testing.T) {
				t.Parallel()

				got, err := json.Marshal(&tt.field)
				if (err != nil) != tt.wantMarshalErr {
					t.Fatal(err)
				}

				if diff := cmp.Diff(tt.want, string(got)); (diff != "") != tt.wantErr {
					t.Errorf("%s: wantErr: %t\n(-want +got)\n%s", tt.name, tt.wantErr, diff)
				}
			})
		}
	})

	t.Run("Unmarshal", func(t *testing.T) {
		t.Parallel()

		tests := []struct {
			name             string
			field            string
			want             CancelParams
			wantUnmarshalErr bool
			wantErr          bool
		}{
			{
				name:             "Valid",
				field:            want,
				want:             wantType,
				wantUnmarshalErr: false,
				wantErr:          false,
			},
		}

		for _, tt := range tests {
			tt := tt
			t.Run(tt.name, func(t *testing.T) {
				t.Parallel()

				var got CancelParams
				if err := json.Unmarshal([]byte(tt.field), &got); (err != nil) != tt.wantUnmarshalErr {
					t.Fatal(err)
				}

				if diff := cmp.Diff(tt.want, got); (diff != "") != tt.wantErr {
					t.Errorf("%s: wantErr: %t\n(-want +got)\n%s", tt.name, tt.wantErr, diff)
				}
			})
		}
	})
}

func TestProgressParams(t *testing.T) {
	t.Parallel()

	const wantWorkDoneToken = "156edea9-9d8d-422f-b7ee-81a84594afbb"
	const want = `{"token":"` + wantWorkDoneToken + `","value":"testValue"}`

	token := NewProgressToken(wantWorkDoneToken)
	wantType := ProgressParams{
		Token: *token,
		Value: "testValue",
	}

	t.Run("Marshal", func(t *testing.T) {
		t.Parallel()

		tests := []struct {
			name           string
			field          ProgressParams
			want           string
			wantMarshalErr bool
			wantErr        bool
		}{
			{
				name:           "Valid",
				field:          wantType,
				want:           want,
				wantMarshalErr: false,
				wantErr:        false,
			},
		}

		for _, tt := range tests {
			tt := tt
			t.Run(tt.name, func(t *testing.T) {
				t.Parallel()

				got, err := json.Marshal(&tt.field)
				if (err != nil) != tt.wantMarshalErr {
					t.Fatal(err)
				}

				if diff := cmp.Diff(tt.want, string(got)); (diff != "") != tt.wantErr {
					t.Errorf("%s: wantErr: %t\n(-want +got)\n%s", tt.name, tt.wantErr, diff)
				}
			})
		}
	})

	t.Run("Unmarshal", func(t *testing.T) {
		t.Parallel()

		tests := []struct {
			name             string
			field            string
			want             ProgressParams
			wantUnmarshalErr bool
			wantErr          bool
		}{
			{
				name:             "Valid",
				field:            want,
				want:             wantType,
				wantUnmarshalErr: false,
				wantErr:          false,
			},
		}

		for _, tt := range tests {
			tt := tt
			t.Run(tt.name, func(t *testing.T) {
				t.Parallel()

				var got ProgressParams
				if err := json.Unmarshal([]byte(tt.field), &got); (err != nil) != tt.wantUnmarshalErr {
					t.Fatal(err)
				}

				if diff := cmp.Diff(tt.want, got, cmpopts.IgnoreFields(ProgressParams{}, "Token")); (diff != "") != tt.wantErr {
					t.Errorf("%s: wantErr: %t\n(-want +got)\n%s", tt.name, tt.wantErr, diff)
				}

				if token := got.Token; !reflect.ValueOf(token).IsZero() {
					if diff := cmp.Diff(fmt.Sprint(token), wantWorkDoneToken); (diff != "") != tt.wantErr {
						t.Errorf("%s: wantErr: %t\n(-want +got)\n%s", tt.name, tt.wantErr, diff)
					}
				}
			})
		}
	})
}