import {
  findPreviousComment,
  createComment,
  updateComment,
  deleteComment
} from "../src/comment"

import * as core from "@actions/core"

jest.mock("@actions/core", () => ({
  warning: jest.fn()
}))

const repo = {
  owner: "marocchino",
  repo: "sticky-pull-request-comment"
}
it("findPreviousComment", async () => {
  const authenticatedUser = {
    login: "github-actions[bot]"
  }
  const otherUser = {
    login: "some-user"
  }
  const comment = {
    user: authenticatedUser,
    body: "previous message\n<!-- Sticky Pull Request Comment -->"
  }
  const commentWithCustomHeader = {
    user: authenticatedUser,
    body: "previous message\n<!-- Sticky Pull Request CommentTypeA -->"
  }
  const headerFirstComment = {
    user: authenticatedUser,
    body: "<!-- Sticky Pull Request CommentLegacyComment -->\nheader first message"
  }
  const otherUserComment = {
    user: otherUser,
    body: "Fake previous message\n<!-- Sticky Pull Request Comment -->"
  }
  const otherComments = [
    {
      user: otherUser,
      body: "lgtm"
    },
    {
      user: authenticatedUser,
      body: "previous message\n<!-- Sticky Pull Request CommentTypeB -->"
    }
  ]
  const octokit: any = {
    graphql: jest.fn(() =>
      Promise.resolve({
        viewer: authenticatedUser
      })
    ),
    rest: {
      issues: {
        listComments: jest.fn(() =>
          Promise.resolve({
            data: [
              commentWithCustomHeader,
              otherUserComment,
              comment,
              headerFirstComment,
              ...otherComments
            ]
          })
        )
      }
    }
  }

  expect(await findPreviousComment(octokit, repo, 123, "")).toBe(comment)
  expect(await findPreviousComment(octokit, repo, 123, "TypeA")).toBe(
    commentWithCustomHeader
  )
  expect(await findPreviousComment(octokit, repo, 123, "LegacyComment")).toBe(
    headerFirstComment
  )
  expect(octokit.rest.issues.listComments).toBeCalledWith({
    owner: "marocchino",
    repo: "sticky-pull-request-comment",
    issue_number: 123
  })
})

describe("updateComment", () => {
  let octokit

  beforeEach(() => {
    octokit = {
      rest: {
        issues: {
          updateComment: jest.fn(() => Promise.resolve())
        }
      }
    }
  })

  it("with comment body", async () => {
    expect(
      await updateComment(octokit, repo, 456, "hello there", "")
    ).toBeUndefined()
    expect(octokit.rest.issues.updateComment).toBeCalledWith({
      comment_id: 456,
      owner: "marocchino",
      repo: "sticky-pull-request-comment",
      body: "hello there\n<!-- Sticky Pull Request Comment -->"
    })
    expect(
      await updateComment(octokit, repo, 456, "hello there", "TypeA")
    ).toBeUndefined()
    expect(octokit.rest.issues.updateComment).toBeCalledWith({
      comment_id: 456,
      owner: "marocchino",
      repo: "sticky-pull-request-comment",
      body: "hello there\n<!-- Sticky Pull Request CommentTypeA -->"
    })
    expect(
      await updateComment(
        octokit,
        repo,
        456,
        "hello there",
        "TypeA",
        "hello there\n<!-- Sticky Pull Request CommentTypeA -->"
      )
    ).toBeUndefined()
    expect(octokit.rest.issues.updateComment).toBeCalledWith({
      comment_id: 456,
      owner: "marocchino",
      repo: "sticky-pull-request-comment",
      body: "hello there\n<!-- Sticky Pull Request CommentTypeA -->\nhello there"
    })
  })

  it("without comment body and previous body", async () => {
    expect(await updateComment(octokit, repo, 456, "", "")).toBeUndefined()
    expect(octokit.rest.issues.updateComment).not.toBeCalled()
    expect(core.warning).toBeCalledWith("Comment body cannot be blank")
  })
})

describe("createComment", () => {
  let octokit

  beforeEach(() => {
    octokit = {
      rest: {
        issues: {
          createComment: jest.fn(() => Promise.resolve())
        }
      }
    }
  })

  it("with comment body or previousBody", async () => {
    expect(
      await createComment(octokit, repo, 456, "hello there", "")
    ).toBeUndefined()
    expect(octokit.rest.issues.createComment).toBeCalledWith({
      issue_number: 456,
      owner: "marocchino",
      repo: "sticky-pull-request-comment",
      body: "hello there\n<!-- Sticky Pull Request Comment -->"
    })
    expect(
      await createComment(octokit, repo, 456, "hello there", "TypeA")
    ).toBeUndefined()
    expect(octokit.rest.issues.createComment).toBeCalledWith({
      issue_number: 456,
      owner: "marocchino",
      repo: "sticky-pull-request-comment",
      body: "hello there\n<!-- Sticky Pull Request CommentTypeA -->"
    })
  })
  it("without comment body and previousBody", async () => {
    expect(await createComment(octokit, repo, 456, "", "")).toBeUndefined()
    expect(octokit.rest.issues.createComment).not.toBeCalled()
    expect(core.warning).toBeCalledWith("Comment body cannot be blank")
  })
})

it("deleteComment", async () => {
  const octokit: any = {
    rest: {
      issues: {
        deleteComment: jest.fn(() => Promise.resolve())
      }
    }
  }
  expect(await deleteComment(octokit, repo, 456)).toBeUndefined()
  expect(octokit.rest.issues.deleteComment).toBeCalledWith({
    comment_id: 456,
    owner: "marocchino",
    repo: "sticky-pull-request-comment"
  })
})