import * as http from "http"
import * as net from "net"
import { HttpClient } from "@actions/http-client"
import * as config from "../src/internal/shared/config"
import { createArtifactTwirpClient } from "../src/internal/shared/artifact-twirp-client"
import * as core from "@actions/core"

jest.mock("@actions/http-client")

describe("artifact-http-client", () => {
  beforeAll(() => {
    // mock all output so that there is less noise when running tests
    jest.spyOn(console, "log").mockImplementation(() => {})
    jest.spyOn(core, "debug").mockImplementation(() => {})
    jest.spyOn(core, "info").mockImplementation(() => {})
    jest.spyOn(core, "warning").mockImplementation(() => {})
    jest.spyOn(config, "getResultsServiceUrl").mockReturnValue("http://localhost:8080")
    jest.spyOn(config, "getRuntimeToken").mockReturnValue("token")
  })

  beforeEach(() => {
    jest.clearAllMocks()
  })

  it("should successfully create a client", () => {
    const client = createArtifactTwirpClient("upload")
    expect(client).toBeDefined()
  })

  it("should make a request", async () => {
    const mockPost = jest.fn(() => {
      const msg = new http.IncomingMessage(new net.Socket())
      msg.statusCode = 200
      return {
        message: msg,
        readBody: () => {return Promise.resolve(`{"ok": true, "signedUploadUrl": "http://localhost:8080/upload"}`)}
      }
    })
    const mockHttpClient = (HttpClient as unknown as jest.Mock).mockImplementation(() => {
      return {
        post: mockPost
      }
    })

    const client = createArtifactTwirpClient("upload")
    const artifact = await client.CreateArtifact(
      {
        workflowRunBackendId: "1234", 
        workflowJobRunBackendId: "5678", 
        name: "artifact", 
        version: 4
      }
    )

    expect(mockHttpClient).toHaveBeenCalledTimes(1) 
    expect(mockPost).toHaveBeenCalledTimes(1)
    expect(artifact).toBeDefined()
    expect(artifact.ok).toBe(true)
    expect(artifact.signedUploadUrl).toBe("http://localhost:8080/upload")
  })

  it("should retry if the request fails", async () => {
    const mockPost = jest
    .fn(() => {
      const msgSucceeded = new http.IncomingMessage(new net.Socket())
      msgSucceeded.statusCode = 200
      return {
        message: msgSucceeded,
        readBody: () => {return Promise.resolve(`{"ok": true, "signedUploadUrl": "http://localhost:8080/upload"}`)}
      }
    })
    .mockImplementationOnce(() => {
      const msgFailed = new http.IncomingMessage(new net.Socket())
      msgFailed.statusCode = 500
      msgFailed.statusMessage = "Internal Server Error"
      return {
        message: msgFailed,
        readBody: () => {return Promise.resolve(`{"ok": false}`)}
      }
    })
    const mockHttpClient = (HttpClient as unknown as jest.Mock).mockImplementation(() => {
      return {
        post: mockPost
      }
    })

    const client = createArtifactTwirpClient(
      "upload",
      5, // retry 5 times
      1, // wait 1 ms
      1.5 // backoff factor
    )
    const artifact = await client.CreateArtifact(
      {
        workflowRunBackendId: "1234", 
        workflowJobRunBackendId: "5678", 
        name: "artifact", 
        version: 4
      }
    )

    expect(mockHttpClient).toHaveBeenCalledTimes(1)
    expect(artifact).toBeDefined()
    expect(artifact.ok).toBe(true)
    expect(artifact.signedUploadUrl).toBe("http://localhost:8080/upload")
    expect(mockPost).toHaveBeenCalledTimes(2)
  })

  it("should fail if the request fails 5 times", async () => {
    const mockPost = jest
      .fn(() => {
        const msgFailed = new http.IncomingMessage(new net.Socket())
        msgFailed.statusCode = 500
        msgFailed.statusMessage = "Internal Server Error"
        return {
          message: msgFailed,
          readBody: () => {return Promise.resolve(`{"ok": false}`)}
        }
      })

      const mockHttpClient = (HttpClient as unknown as jest.Mock).mockImplementation(() => {
        return {
          post: mockPost
        }
      })
      const client = createArtifactTwirpClient(
        "upload",
        5, // retry 5 times
        1, // wait 1 ms
        1.5 // backoff factor
      )
    await expect(async () => {
      await client.CreateArtifact(
        {
          workflowRunBackendId: "1234", 
          workflowJobRunBackendId: "5678", 
          name: "artifact", 
          version: 4
        }
      )
    }).rejects.toThrowError("Failed to make request after 5 attempts: Failed request: (500) Internal Server Error")
    expect(mockHttpClient).toHaveBeenCalledTimes(1)
    expect(mockPost).toHaveBeenCalledTimes(5)
  })
  
  it("should fail immediately if there is a non-retryable error", async () => {
    const mockPost = jest
      .fn(() => {
        const msgFailed = new http.IncomingMessage(new net.Socket())
        msgFailed.statusCode = 401
        msgFailed.statusMessage = "Unauthorized"
        return {
          message: msgFailed,
          readBody: () => {return Promise.resolve(`{"ok": false}`)}
        }
      })

      const mockHttpClient = (HttpClient as unknown as jest.Mock).mockImplementation(() => {
        return {
          post: mockPost
        }
      })
      const client = createArtifactTwirpClient(
        "upload",
        5, // retry 5 times
        1, // wait 1 ms
        1.5 // backoff factor
      )
    await expect(async () => {
      await client.CreateArtifact(
        {
          workflowRunBackendId: "1234", 
          workflowJobRunBackendId: "5678", 
          name: "artifact", 
          version: 4
        }
      )
    }).rejects.toThrowError("Received non-retryable error: Failed request: (401) Unauthorized")
    expect(mockHttpClient).toHaveBeenCalledTimes(1)
    expect(mockPost).toHaveBeenCalledTimes(1)
  })
})