// black-box testing
package mvc2_test

import (
	"testing"

	"github.com/kataras/iris"
	"github.com/kataras/iris/context"
	"github.com/kataras/iris/core/router"
	"github.com/kataras/iris/httptest"
	. "github.com/kataras/iris/mvc2"
)

type testController struct {
	C
}

var writeMethod = func(c C) {
	c.Ctx.Writef(c.Ctx.Method())
}

func (c *testController) Get() {
	writeMethod(c.C)
}
func (c *testController) Post() {
	writeMethod(c.C)
}
func (c *testController) Put() {
	writeMethod(c.C)
}
func (c *testController) Delete() {
	writeMethod(c.C)
}
func (c *testController) Connect() {
	writeMethod(c.C)
}
func (c *testController) Head() {
	writeMethod(c.C)
}
func (c *testController) Patch() {
	writeMethod(c.C)
}
func (c *testController) Options() {
	writeMethod(c.C)
}
func (c *testController) Trace() {
	writeMethod(c.C)
}

type (
	testControllerAll struct{ C }
	testControllerAny struct{ C } // exactly the same as All.
)

func (c *testControllerAll) All() {
	writeMethod(c.C)
}

func (c *testControllerAny) Any() {
	writeMethod(c.C)
}

func TestControllerMethodFuncs(t *testing.T) {
	app := iris.New()

	m := New()
	m.Controller(app, new(testController))
	m.Controller(app.Party("/all"), new(testControllerAll))
	m.Controller(app.Party("/any"), new(testControllerAny))

	e := httptest.New(t, app)
	for _, method := range router.AllMethods {

		e.Request(method, "/").Expect().Status(iris.StatusOK).
			Body().Equal(method)

		e.Request(method, "/all").Expect().Status(iris.StatusOK).
			Body().Equal(method)

		e.Request(method, "/any").Expect().Status(iris.StatusOK).
			Body().Equal(method)
	}
}

type testControllerBeginAndEndRequestFunc struct {
	C

	Username string
}

// called before of every method (Get() or Post()).
//
// useful when more than one methods using the
// same request values or context's function calls.
func (c *testControllerBeginAndEndRequestFunc) BeginRequest(ctx context.Context) {
	c.C.BeginRequest(ctx)
	c.Username = ctx.Params().Get("username")
}

// called after every method (Get() or Post()).
func (c *testControllerBeginAndEndRequestFunc) EndRequest(ctx context.Context) {
	ctx.Writef("done") // append "done" to the response
	c.C.EndRequest(ctx)
}

func (c *testControllerBeginAndEndRequestFunc) Get() {
	c.Ctx.Writef(c.Username)
}

func (c *testControllerBeginAndEndRequestFunc) Post() {
	c.Ctx.Writef(c.Username)
}

func TestControllerBeginAndEndRequestFunc(t *testing.T) {
	app := iris.New()
	New().Controller(app.Party("/profile/{username}"), new(testControllerBeginAndEndRequestFunc))

	e := httptest.New(t, app)
	usernames := []string{
		"kataras",
		"makis",
		"efi",
		"rg",
		"bill",
		"whoisyourdaddy",
	}
	doneResponse := "done"

	for _, username := range usernames {
		e.GET("/profile/" + username).Expect().Status(iris.StatusOK).
			Body().Equal(username + doneResponse)
		e.POST("/profile/" + username).Expect().Status(iris.StatusOK).
			Body().Equal(username + doneResponse)
	}
}

func TestControllerBeginAndEndRequestFuncBindMiddleware(t *testing.T) {
	app := iris.New()
	usernames := map[string]bool{
		"kataras":        true,
		"makis":          false,
		"efi":            true,
		"rg":             false,
		"bill":           true,
		"whoisyourdaddy": false,
	}
	middlewareCheck := func(ctx context.Context) {
		for username, allow := range usernames {
			if ctx.Params().Get("username") == username && allow {
				ctx.Next()
				return
			}
		}

		ctx.StatusCode(iris.StatusForbidden)
		ctx.Writef("forbidden")
	}

	New().Controller(app.Party("/profile/{username}", middlewareCheck),
		new(testControllerBeginAndEndRequestFunc))

	e := httptest.New(t, app)

	doneResponse := "done"

	for username, allow := range usernames {
		getEx := e.GET("/profile/" + username).Expect()
		if allow {
			getEx.Status(iris.StatusOK).
				Body().Equal(username + doneResponse)
		} else {
			getEx.Status(iris.StatusForbidden).Body().Equal("forbidden")
		}

		postEx := e.POST("/profile/" + username).Expect()
		if allow {
			postEx.Status(iris.StatusOK).
				Body().Equal(username + doneResponse)
		} else {
			postEx.Status(iris.StatusForbidden).Body().Equal("forbidden")
		}
	}
}

type Model struct {
	Username string
}

type testControllerEndRequestAwareness struct {
	C
}

func (c *testControllerEndRequestAwareness) Get() {
	username := c.Ctx.Params().Get("username")
	c.Ctx.Values().Set(c.Ctx.Application().ConfigurationReadOnly().GetViewDataContextKey(),
		map[string]interface{}{
			"TestModel": Model{Username: username},
			"myModel":   Model{Username: username + "2"},
		})
}

func writeModels(ctx context.Context, names ...string) {
	if expected, got := len(names), len(ctx.GetViewData()); expected != got {
		ctx.Writef("expected view data length: %d but got: %d for names: %s", expected, got, names)
		return
	}

	for _, name := range names {

		m, ok := ctx.GetViewData()[name]
		if !ok {
			ctx.Writef("fail load and set the %s", name)
			return
		}

		model, ok := m.(Model)
		if !ok {
			ctx.Writef("fail to override the %s' name by the tag", name)
			return
		}

		ctx.Writef(model.Username)
	}
}

func (c *testControllerEndRequestAwareness) EndRequest(ctx context.Context) {
	writeModels(ctx, "TestModel", "myModel")
	c.C.EndRequest(ctx)
}

func TestControllerEndRequestAwareness(t *testing.T) {
	app := iris.New()
	New().Controller(app.Party("/era/{username}"), new(testControllerEndRequestAwareness))

	e := httptest.New(t, app)
	usernames := []string{
		"kataras",
		"makis",
	}

	for _, username := range usernames {
		e.GET("/era/" + username).Expect().Status(iris.StatusOK).
			Body().Equal(username + username + "2")
	}
}

type testBindType struct {
	title string
}

type testControllerBindStruct struct {
	C
	//  should start with upper letter of course
	TitlePointer *testBindType // should have the value of the "myTitlePtr" on test
	TitleValue   testBindType  // should have the value of the "myTitleV" on test
	Other        string        // just another type to check the field collection, should be empty
}

func (t *testControllerBindStruct) Get() {
	t.Ctx.Writef(t.TitlePointer.title + t.TitleValue.title + t.Other)
}

type testControllerBindDeep struct {
	testControllerBindStruct
}

func (t *testControllerBindDeep) Get() {
	// 	t.testControllerBindStruct.Get()
	t.Ctx.Writef(t.TitlePointer.title + t.TitleValue.title + t.Other)
}
func TestControllerBind(t *testing.T) {
	app := iris.New()
	// app.Logger().SetLevel("debug")

	t1, t2 := "my pointer title", "val title"
	// test bind pointer to pointer of the correct type
	myTitlePtr := &testBindType{title: t1}
	// test bind value to value of the correct type
	myTitleV := testBindType{title: t2}
	m := New()
	m.Bind(myTitlePtr, myTitleV)
	//			or just app
	m.Controller(app.Party("/"), new(testControllerBindStruct))
	m.Controller(app.Party("/deep"), new(testControllerBindDeep))

	e := httptest.New(t, app)
	expected := t1 + t2
	e.GET("/").Expect().Status(iris.StatusOK).
		Body().Equal(expected)
	e.GET("/deep").Expect().Status(iris.StatusOK).
		Body().Equal(expected)
}

type testCtrl0 struct {
	testCtrl00
}

func (c *testCtrl0) Get() string {
	return c.Ctx.Params().Get("username")
}

func (c *testCtrl0) EndRequest(ctx context.Context) {
	if c.TitlePointer == nil {
		ctx.Writef("\nTitlePointer is nil!\n")
	} else {
		ctx.Writef(c.TitlePointer.title)
	}

	//should be the same as `.testCtrl000.testCtrl0000.EndRequest(ctx)`
	c.testCtrl00.EndRequest(ctx)
}

type testCtrl00 struct {
	testCtrl000
}

type testCtrl000 struct {
	testCtrl0000

	TitlePointer *testBindType
}

type testCtrl0000 struct {
	C
}

func (c *testCtrl0000) EndRequest(ctx context.Context) {
	ctx.Writef("finish")
}

func TestControllerInsideControllerRecursively(t *testing.T) {
	var (
		username = "gerasimos"
		title    = "mytitle"
		expected = username + title + "finish"
	)

	app := iris.New()
	New().Bind(&testBindType{title: title}).
		Controller(app.Party("/user/{username}"), new(testCtrl0))

	e := httptest.New(t, app)
	e.GET("/user/" + username).Expect().
		Status(iris.StatusOK).Body().Equal(expected)
}

type testControllerRelPathFromFunc struct{ C }

func (c *testControllerRelPathFromFunc) EndRequest(ctx context.Context) {
	ctx.Writef("%s:%s", ctx.Method(), ctx.Path())
	c.C.EndRequest(ctx)
}

func (c *testControllerRelPathFromFunc) Get()                         {}
func (c *testControllerRelPathFromFunc) GetBy(int64)                  {}
func (c *testControllerRelPathFromFunc) GetAnythingByWildcard(string) {}

func (c *testControllerRelPathFromFunc) GetLogin()  {}
func (c *testControllerRelPathFromFunc) PostLogin() {}

func (c *testControllerRelPathFromFunc) GetAdminLogin() {}

func (c *testControllerRelPathFromFunc) PutSomethingIntoThis() {}

func (c *testControllerRelPathFromFunc) GetSomethingBy(bool)                {}
func (c *testControllerRelPathFromFunc) GetSomethingByBy(string, int)       {}
func (c *testControllerRelPathFromFunc) GetSomethingNewBy(string, int)      {} // two input arguments, one By which is the latest word.
func (c *testControllerRelPathFromFunc) GetSomethingByElseThisBy(bool, int) {} // two input arguments

func TestControllerRelPathFromFunc(t *testing.T) {
	app := iris.New()
	New().Controller(app, new(testControllerRelPathFromFunc))

	e := httptest.New(t, app)
	e.GET("/").Expect().Status(iris.StatusOK).
		Body().Equal("GET:/")

	e.GET("/42").Expect().Status(iris.StatusOK).
		Body().Equal("GET:/42")
	e.GET("/something/true").Expect().Status(iris.StatusOK).
		Body().Equal("GET:/something/true")
	e.GET("/something/false").Expect().Status(iris.StatusOK).
		Body().Equal("GET:/something/false")
	e.GET("/something/truee").Expect().Status(iris.StatusNotFound)
	e.GET("/something/falsee").Expect().Status(iris.StatusNotFound)
	e.GET("/something/kataras/42").Expect().Status(iris.StatusOK).
		Body().Equal("GET:/something/kataras/42")
	e.GET("/something/new/kataras/42").Expect().Status(iris.StatusOK).
		Body().Equal("GET:/something/new/kataras/42")
	e.GET("/something/true/else/this/42").Expect().Status(iris.StatusOK).
		Body().Equal("GET:/something/true/else/this/42")

	e.GET("/login").Expect().Status(iris.StatusOK).
		Body().Equal("GET:/login")
	e.POST("/login").Expect().Status(iris.StatusOK).
		Body().Equal("POST:/login")
	e.GET("/admin/login").Expect().Status(iris.StatusOK).
		Body().Equal("GET:/admin/login")
	e.PUT("/something/into/this").Expect().Status(iris.StatusOK).
		Body().Equal("PUT:/something/into/this")
	e.GET("/42").Expect().Status(iris.StatusOK).
		Body().Equal("GET:/42")
	e.GET("/anything/here").Expect().Status(iris.StatusOK).
		Body().Equal("GET:/anything/here")

}

type testControllerActivateListener struct {
	C

	TitlePointer *testBindType
}

func (c *testControllerActivateListener) OnActivate(ca *ControllerActivator) {
	if !ca.BindExists(&testBindType{}) {
		ca.Bind(&testBindType{
			title: "default title",
		})
	}
}

func (c *testControllerActivateListener) Get() string {
	return c.TitlePointer.title
}

func TestControllerActivateListener(t *testing.T) {
	app := iris.New()
	New().Controller(app, new(testControllerActivateListener))
	New().Bind(&testBindType{ // will bind to all controllers under this .New() MVC Engine.
		title: "my title",
	}).Controller(app.Party("/manual"), new(testControllerActivateListener))
	// or
	New().Controller(app.Party("/manual2"), &testControllerActivateListener{
		TitlePointer: &testBindType{
			title: "my title",
		},
	})

	e := httptest.New(t, app)
	e.GET("/").Expect().Status(iris.StatusOK).
		Body().Equal("default title")
	e.GET("/manual").Expect().Status(iris.StatusOK).
		Body().Equal("my title")
	e.GET("/manual2").Expect().Status(iris.StatusOK).
		Body().Equal("my title")
}