package shared

import (
	"errors"
	"testing"

	"git.entityseven.com/rilaxik/pllist/internal/domain"
)

func TestUserMessage(t *testing.T) {
	tests := []struct {
		name string
		err  error
		want string
	}{
		{name: "validation", err: domain.NewValidationError("Title is too long."), want: "Title is too long."},
		{name: "wrapped validation", err: errors.Join(errors.New("context"), domain.NewValidationError("Bad quantity.")), want: "Bad quantity."},
		{name: "not found", err: domain.ErrNotFound, want: "Not found or no access."},
		{name: "forbidden", err: domain.ErrForbidden, want: "You cannot do that."},
		{name: "conflict", err: domain.ErrConflict, want: "This changed while you were looking. Try again."},
		{name: "bad callback", err: ErrBadCallback, want: "This button is out of date. Use /lists."},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			if got := UserMessage(tt.err); got != tt.want {
				t.Fatalf("UserMessage() = %q, want %q", got, tt.want)
			}
		})
	}
}

func TestIsExpectedError(t *testing.T) {
	expected := []error{
		domain.NewValidationError("bad"),
		domain.ErrNotFound,
		domain.ErrForbidden,
		domain.ErrConflict,
		domain.ErrInvalidInput,
		ErrBadCallback,
	}
	for _, err := range expected {
		if !IsExpectedError(err) {
			t.Fatalf("IsExpectedError(%v) = false, want true", err)
		}
	}
	if IsExpectedError(errors.New("database down")) {
		t.Fatal("IsExpectedError() = true for an unexpected error")
	}
}