package cmd

import (
	"bytes"
	"fmt"
	"io/ioutil"
	"net/http"
	"os"
	"testing"

	"github.com/drycc/controller-sdk-go/api"
	"github.com/drycc/workflow-cli/pkg/testutil"
	"github.com/stretchr/testify/assert"
)

func TestRoutesCreate(t *testing.T) {
	t.Parallel()
	cf, server, err := testutil.NewTestServerAndClient()
	if err != nil {
		t.Fatal(err)
	}
	defer server.Close()
	var b bytes.Buffer
	cmdr := DryccCmd{WOut: &b, ConfigFile: cf}

	server.Mux.HandleFunc("/v2/apps/foo/routes/", func(w http.ResponseWriter, r *http.Request) {
		testutil.AssertBody(t, api.RouteCreateRequest{Name: "example-go", Type: "web", Port: 443, Kind: "HTTPRoute"}, r)
		testutil.SetHeaders(w)
		w.WriteHeader(http.StatusCreated)
		// Body isn't used by CLI, so it isn't set.
		w.Write([]byte("{}"))
	})

	err = cmdr.RoutesCreate("foo", "example-go", "web", "HTTPRoute", 443)
	assert.NoError(t, err)

	assert.Equal(t, testutil.StripProgress(b.String()), "Adding route example-go to foo... done\n", "output")
}

func TestRoutesList(t *testing.T) {
	t.Parallel()
	cf, server, err := testutil.NewTestServerAndClient()
	if err != nil {
		t.Fatal(err)
	}
	defer server.Close()
	var b bytes.Buffer
	cmdr := DryccCmd{WOut: &b, ConfigFile: cf}

	server.Mux.HandleFunc("/v2/apps/foo/routes/", func(w http.ResponseWriter, r *http.Request) {
		testutil.SetHeaders(w)
		fmt.Fprintf(w, `{
    "count": 1,
    "next": null,
    "previous": null,
    "results": [
        {
            "app": "example-go",
            "created": "2023-04-19T00:00:00UTC",
            "owner": "test",
            "updated": "2023-04-19T00:00:00UTC",
            "name": "example-go",
            "procfile_type": "web",
            "kind": "HTTPRoute",
            "port": 80,
            "parent_refs": [
                {
                    "name": "example-go",
                    "port": 80
                }
            ]
        }
    ]
}`)
	})

	err = cmdr.RoutesList("foo", -1)
	assert.NoError(t, err)

	assert.Equal(t, b.String(), `=== foo Routes
+------------+------+-----------+--------------+------------+---------------+
|    NAME    | TYPE |   KIND    | SERVICE PORT |  GATEWAY   | LISTENER PORT |
+------------+------+-----------+--------------+------------+---------------+
| example-go | web  | HTTPRoute |           80 | example-go |            80 |
+------------+------+-----------+--------------+------------+---------------+
`, "output")
}

func TestRoutesAttach(t *testing.T) {
	t.Parallel()
	cf, server, err := testutil.NewTestServerAndClient()
	if err != nil {
		t.Fatal(err)
	}
	defer server.Close()
	var b bytes.Buffer
	cmdr := DryccCmd{WOut: &b, ConfigFile: cf}

	server.Mux.HandleFunc("/v2/apps/foo/routes/example-go/attach/", func(w http.ResponseWriter, r *http.Request) {
		testutil.AssertBody(t, api.RouteAttackRequest{Port: 4443, Gateway: "example-go"}, r)
		testutil.SetHeaders(w)
		w.WriteHeader(http.StatusCreated)
		// Body isn't used by CLI, so it isn't set.
		w.Write([]byte("{}"))
	})

	err = cmdr.RoutesAttach("foo", "example-go", 4443, "example-go")
	assert.NoError(t, err)

	assert.Equal(t, testutil.StripProgress(b.String()), "Attaching route example-go to gateway example-go... done\n", "output")
}
func TestRoutesDetach(t *testing.T) {
	t.Parallel()
	cf, server, err := testutil.NewTestServerAndClient()
	if err != nil {
		t.Fatal(err)
	}
	defer server.Close()
	var b bytes.Buffer
	cmdr := DryccCmd{WOut: &b, ConfigFile: cf}

	server.Mux.HandleFunc("/v2/apps/foo/routes/example-go/detach/", func(w http.ResponseWriter, r *http.Request) {
		testutil.AssertBody(t, api.RouteDetackRequest{Port: 4443, Gateway: "example-go"}, r)
		testutil.SetHeaders(w)
		w.WriteHeader(http.StatusCreated)
		// Body isn't used by CLI, so it isn't set.
		w.Write([]byte("{}"))
	})

	err = cmdr.RoutesDetach("foo", "example-go", 4443, "example-go")
	assert.NoError(t, err)

	assert.Equal(t, testutil.StripProgress(b.String()), "Detaching route example-go to gateway example-go... done\n", "output")
}

func TestRouteGet(t *testing.T) {
	t.Parallel()
	cf, server, err := testutil.NewTestServerAndClient()
	if err != nil {
		t.Fatal(err)
	}
	defer server.Close()
	var b bytes.Buffer
	cmdr := DryccCmd{WOut: &b, ConfigFile: cf}

	server.Mux.HandleFunc("/v2/apps/foo/routes/example-go/rules/", func(w http.ResponseWriter, r *http.Request) {
		testutil.SetHeaders(w)
		fmt.Fprintf(w, `[
  {
    "backendRefs": [
      {
        "kind": "Service",
        "name": "py3django3",
        "port": 80
      }
    ]
  }
]`)
	})

	err = cmdr.RoutesGet("foo", "example-go")
	assert.NoError(t, err)

	assert.Equal(t, b.String(), `[
  {
    "backendRefs": [
      {
        "kind": "Service",
        "name": "py3django3",
        "port": 80
      }
    ]
  }
]
`, "output")
}

func TestRoutesSet(t *testing.T) {
	t.Parallel()
	cf, server, err := testutil.NewTestServerAndClient()
	if err != nil {
		t.Fatal(err)
	}
	defer server.Close()
	var b bytes.Buffer
	cmdr := DryccCmd{WOut: &b, ConfigFile: cf}

	server.Mux.HandleFunc("/v2/apps/foo/routes/example-go/rules/", func(w http.ResponseWriter, r *http.Request) {
		testutil.SetHeaders(w)
		w.WriteHeader(http.StatusNoContent)
		w.Write([]byte(""))
	})
	ruleFile, err := ioutil.TempFile("", "rules.json")
	rules := `
[
	{
		"backendRefs": [
			{
				"kind": "Service",
				"name": "example-go",
				"port": 1234
			}
		],
		"matches": [
			{
				"path": {
					"type": "PathPrefix",
					"value": "/get"
				}
			}
		]
	}
]`
	assert.NoError(t, err)
	defer os.Remove(ruleFile.Name())
	_, err = ruleFile.Write([]byte(rules))
	assert.NoError(t, err)
	ruleFile.Close()
	err = cmdr.RoutesSet("foo", "example-go", ruleFile.Name())
	assert.NoError(t, err)

	assert.Equal(t, testutil.StripProgress(b.String()), "Applying rules... done\n", "output")
}

func TestRoutesRemove(t *testing.T) {
	t.Parallel()
	cf, server, err := testutil.NewTestServerAndClient()
	if err != nil {
		t.Fatal(err)
	}
	defer server.Close()
	var b bytes.Buffer
	cmdr := DryccCmd{WOut: &b, ConfigFile: cf}

	server.Mux.HandleFunc("/v2/apps/foo/routes/example-go/", func(w http.ResponseWriter, r *http.Request) {
		testutil.SetHeaders(w)
		w.WriteHeader(http.StatusNoContent)
	})

	err = cmdr.RoutesRemove("foo", "example-go")
	assert.NoError(t, err)

	assert.Equal(t, testutil.StripProgress(b.String()), "Removing route example-go to foo... done\n", "output")
}