package daemon

import (
	"context"
	"net/http"
	"net/http/httptest"
	service_definition "spud/service_definition"
	"testing"
)

type MockClient struct {
	calls struct {
		Create []service_definition.ServiceDefinition
		Stop   []string
	}
}

func (c *MockClient) Create(s service_definition.ServiceDefinition) error {
	c.calls.Create = append(c.calls.Create, s)
	return nil
}

func (c *MockClient) Stop(n string) error {
	c.calls.Stop = append(c.calls.Stop, n)
	return nil
}

func TestServiceListPostCreatesService(t *testing.T) {
	mockClient := &MockClient{}
	daemonContext := context.WithValue(context.Background(), "client", mockClient)
	req := httptest.NewRequest(http.MethodPost, "/service/", nil)
	resp := httptest.NewRecorder()

	ServiceList(resp, req, daemonContext)

	response := resp.Result()

	if response.StatusCode != 201 {
		t.Errorf("Expected status 201, got %d", response.StatusCode)
	}

	if len(mockClient.calls.Create) != 1 {
		t.Error("Expected a call to Create")
	}
}

func TestServiceListUnsupportedMethods(t *testing.T) {
	for _, method := range []string{http.MethodGet, http.MethodPut, http.MethodHead, http.MethodDelete} {
		t.Run(method, func(t *testing.T) {
			req := httptest.NewRequest(method, "/service/", nil)
			resp := httptest.NewRecorder()

			ServiceList(resp, req, context.Background())

			response := resp.Result()

			if response.StatusCode != 501 {
				t.Errorf("Expected status 501, got %d.", response.StatusCode)
			}
		})
	}

}

func TestServiceDetailsDeleteStopsService(t *testing.T) {
	mockClient := &MockClient{}
	daemonContext := context.WithValue(context.Background(), "client", mockClient)
	req := httptest.NewRequest(http.MethodDelete, "/service/service-name/", nil)
	resp := httptest.NewRecorder()

	ServiceDetails(resp, req, daemonContext)

	response := resp.Result()

	if response.StatusCode != 204 {
		t.Errorf("Expected status 204, got %d", response.StatusCode)
	}

	if len(mockClient.calls.Stop) != 1 {
		t.Error("Expected a call to Stop")
	}
}

func TestServiceDetailUnsupportedMethods(t *testing.T) {
	for _, method := range []string{http.MethodGet, http.MethodPost, http.MethodPut, http.MethodHead} {
		t.Run(method, func(t *testing.T) {
			req := httptest.NewRequest(method, "/service/service-name/", nil)
			resp := httptest.NewRecorder()

			ServiceDetails(resp, req, context.Background())

			response := resp.Result()

			if response.StatusCode != 501 {
				t.Errorf("Expected status 501, got %d.", response.StatusCode)
			}
		})
	}

}