const expect = require("chai").expect
const _ = require("lodash")

const libIlias = require("../lib/libIlias")
const db = require("../lib/db")
const testData = require("./data")

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// Integration test against a real ILIAS instance.
// Creates a temporary user, enrolls it via libIlias.anmelden() into an
// existing course, verifies that libIlias.abmelden() removes the
// membership, then cleans up.
describe("the function abmelden", function () {

   const courseId = testData.anmelden.obj_id
   let user = null
   let userId = null

   beforeEach(async function () {
      user = _.cloneDeep(testData.user)
      const res = await libIlias.importIliasUser(user)
      userId = res.usr_id
      // precondition: the user must be enrolled
      await libIlias.anmelden(userId, courseId)
   })

   afterEach(async function () {
      if (!userId) return
      // best effort cleanup (abmelden is idempotent)
      await libIlias.abmelden(userId, courseId).catch(console.error)
      await libIlias.deleteUser(userId).catch(console.error)
      userId = null
   })

   it("should remove the Teilnahme of a user", async function () {
      const res = await libIlias.abmelden(userId, courseId)
      expect(res).to.have.property("status").and.to.equal("ok")
      expect(res).to.have.property("command").and.to.equal("abmelden")
      expect(res).to.have.property("method").and.to.equal("DELETE")

      const members = await db.getKursTeilnehmerByRole(courseId)
      expect(members.map(m => m.usr_id)).to.not.include(userId)
   })

})

/////////////////////////////////////////////////////////////////////////