/// <reference types="cypress" />

context("Connectors", () => {
  beforeEach(() => {
    cy.visit("https://example.cypress.io/commands/connectors")
  })

  it(".each() - iterate over an array of elements", () => {
    // https://on.cypress.io/each
    cy.get(".connectors-each-ul>li").each(($el, index, $list) => {
      console.log($el, index, $list)
    })
  })

  it(".its() - get properties on the current subject", () => {
    // https://on.cypress.io/its
    cy.get(".connectors-its-ul>li")
      // calls the 'length' property yielding that value
      .its("length")
      .should("be.gt", 2)
  })

  it(".invoke() - invoke a function on the current subject", () => {
    // our div is hidden in our script.js
    // $('.connectors-div').hide()

    // https://on.cypress.io/invoke
    cy.get(".connectors-div")
      .should("be.hidden")
      // call the jquery method 'show' on the 'div.container'
      .invoke("show")
      .should("be.visible")
  })

  it(".spread() - spread an array as individual args to callback function", () => {
    // https://on.cypress.io/spread
    const arr = ["foo", "bar", "baz"]

    cy.wrap(arr).spread((foo, bar, baz) => {
      expect(foo).to.eq("foo")
      expect(bar).to.eq("bar")
      expect(baz).to.eq("baz")
    })
  })

  describe(".then()", () => {
    it("invokes a callback function with the current subject", () => {
      // https://on.cypress.io/then
      cy.get(".connectors-list > li").then($lis => {
        expect($lis, "3 items").to.have.length(3)
        expect($lis.eq(0), "first item").to.contain("Walk the dog")
        expect($lis.eq(1), "second item").to.contain("Feed the cat")
        expect($lis.eq(2), "third item").to.contain("Write JavaScript")
      })
    })

    it("yields the returned value to the next command", () => {
      cy.wrap(1)
        .then(num => {
          expect(num).to.equal(1)

          return 2
        })
        .then(num => {
          expect(num).to.equal(2)
        })
    })

    it("yields the original subject without return", () => {
      cy.wrap(1)
        .then(num => {
          expect(num).to.equal(1)
          // note that nothing is returned from this callback
        })
        .then(num => {
          // this callback receives the original unchanged value 1
          expect(num).to.equal(1)
        })
    })

    it("yields the value yielded by the last Cypress command inside", () => {
      cy.wrap(1)
        .then(num => {
          expect(num).to.equal(1)
          // note how we run a Cypress command
          // the result yielded by this Cypress command
          // will be passed to the second ".then"
          cy.wrap(2)
        })
        .then(num => {
          // this callback receives the value yielded by "cy.wrap(2)"
          expect(num).to.equal(2)
        })
    })
  })
})