package test

import (
	"testing"

	"github.com/gdamore/tcell"
	. "github.com/onsi/ginkgo"
	. "github.com/onsi/gomega"
)

func TestIntegration(t *testing.T) {
	RegisterFailHandler(Fail)
	RunSpecs(t, "Integration tests")
}

var _ = Describe("Showing a basic webpage", func() {
	BeforeEach(func() {
		GotoURL(testSiteURL + "/smorgasbord/")
  })

	Describe("Browser UI", func() {
		It("should have the page title and current URL", func() {
			Expect("Smörgåsbord").To(BeInFrameAt(0, 0))
			URL := testSiteURL + "/smorgasbord/"
			Expect(URL).To(BeInFrameAt(0, 1))
		})

		Describe("Interaction", func() {
			It("should navigate to a new page by using the URL bar", func() {
				SpecialKey(tcell.KeyCtrlL)
				BackspaceRemoveURL()
				Keyboard(testSiteURL + "/smorgasbord/another.html")
				SpecialKey(tcell.KeyEnter)
				Expect("Another").To(BeInFrameAt(0, 0))
			})

			It("should navigate to a new page by clicking a link", func() {
				Expect("Another▄page").To(BeInFrameAt(12, 19))
				mouseClick(12, 19)
				Expect("Another").To(BeInFrameAt(0, 0))
			})

			It("should scroll the page by one line", func() {
				SpecialKey(tcell.KeyDown)
				Expect("meal,▄originating▄in▄").To(BeInFrameAt(12, 11))
			})

			It("should scroll the page by one page", func() {
				SpecialKey(tcell.KeyPgDn)
				Expect("continuing▄with▄a▄variety▄of▄fish").To(BeInFrameAt(12, 12))
			})

			Describe("Text Input", func() {
				BeforeEach(func() {
					SpecialKey(tcell.KeyDown)
					SpecialKey(tcell.KeyDown)
					simScreen.InjectMouse(12, 17, tcell.Button1, tcell.ModNone)
				})

				It("should have basic cursor movement", func() {
					Keyboard("|||")
					SpecialKey(tcell.KeyLeft)
					Keyboard("2")
					SpecialKey(tcell.KeyLeft)
					SpecialKey(tcell.KeyLeft)
					Keyboard("1")
					Expect("|1|2|").To(BeInFrameAt(12, 17))
				})

				It("should submit text into an input box", func() {
					Expect("Unsubmitted").To(BeInFrameAt(12, 21))
					Keyboard("Reverse Me!")
					SpecialKey(tcell.KeyEnter)
					Expect("!eM▄esreveR").To(BeInFrameAt(12, 21))
				})
			})

			Describe("Tabs", func() {
				BeforeEach(func() {
					SpecialKey(tcell.KeyCtrlT)
				})

				AfterEach(func() {
					ensureOnlyOneTab()
				})

				It("should create a new tab", func() {
					Expect("New Tab").To(BeInFrameAt(21, 0))
				})

				It("should be able to goto a new URL", func() {
					Keyboard(testSiteURL + "/smorgasbord/another.html")
					SpecialKey(tcell.KeyEnter)
					Expect("Another").To(BeInFrameAt(21, 0))
				})

				It("should cycle to the next tab", func() {
					Expect("                   ").To(BeInFrameAt(0, 1))
					SpecialKey(tcell.KeyCtrlL)
					GotoURL(testSiteURL + "/smorgasbord/another.html")
					simScreen.InjectKey(9, 0, tcell.ModNone)
					URL := testSiteURL + "/smorgasbord/             "
					Expect(URL).To(BeInFrameAt(0, 1))
				})
			})
		})
	})

	Describe("Rendering", func() {
		It("should reset page scroll to zero on page load", func() {
			SpecialKey(tcell.KeyPgDn)
			Expect("continuing▄with▄a▄variety▄of▄fish").To(BeInFrameAt(12, 12))
			GotoURL(testSiteURL + "/smorgasbord/another.html")
			Expect("Another▄webpage").To(BeInFrameAt(1, 3))
		})

		It("should render dynamic content", func() {
			var greens, pinks int
			var colours [10][3]int32
			for i := 0; i < 10; i++ {
				colours[i] = GetFgColour(39, 3)
				waitForNextFrame()
			}
			for i := 0; i < 10; i++ {
				if colours[i] == [3]int32{0, 255, 255} { greens++ }
				if colours[i] == [3]int32{255, 0, 255} { pinks++ }
			}
			Expect(greens).To(BeNumerically(">=", 1))
			Expect(pinks).To(BeNumerically(">=", 1))
		})

		It("should switch to monochrome mode", func() {
			simScreen.InjectKey(tcell.KeyRune, 'm', tcell.ModAlt)
			waitForNextFrame()
			Expect([3]int32{0, 0, 0}).To(Equal(GetBgColour(0, 2)))
			Expect([3]int32{255, 255, 255}).To(Equal(GetFgColour(12, 11)))
		})

		Describe("Text positioning", func() {
			It("should position the left/right-aligned coloumns", func() {
				Expect("Smörgåsbord▄(Swedish:").To(BeInFrameAt(12, 10))
				Expect("The▄Swedish▄word").To(BeInFrameAt(42, 10))
			})
		})
	})
})