import {
  get_missions, get_mission_users, get_displayed_deals, get_default_deal, get_mission_proposals,
  get_deals, deal_status, get_proposals,
} from 'selectors/missions'
import state from './state.js'
import {array_from_set, set_from_array, array_from_hash, for_all} from 'common/utilities'
import expect from 'expect'

const user_statuses = ['available', 'impossible', 'new', 'accepted', 'rejected', 'assigned']

describe("get_missions", () => {
  let missions = get_missions(state)

  it("should compute mission status", () => {
    expect(missions[1].status).toEqual('draft')
    expect(missions[2].status).toEqual('sent')
    expect(missions[3].status).toEqual('assigned')
    expect(missions[4].status).toEqual('pending_assignement')
    expect(missions[5].status).toEqual('pending_selection')
  })

  it("should keep the number of missions", () => {
    expect(array_from_hash(missions).length).toEqual(array_from_hash(state.missions.missions).length)
  })

  it("should keep ids", () => {
    expect(for_all(Object.keys(missions), (id) => missions[id].id == id)).toBeTruthy()
  })

  user_statuses.forEach((user_status) => {
    array_from_hash(missions).slice(0, 5).forEach((mission) => {
      it(`grouped_users_status should have distinct values for mission status ${mission.status} and user status ${user_status}`, () => {
        let has_distinct_elements = (array) => array_from_set(set_from_array(array)).length == array.length
        expect(has_distinct_elements(mission.grouped_users_status[user_status])).toBeTruthy();
      })
    })
  })
})

describe("get_mission_users", () => {
  user_statuses.forEach((user_status) => {
    array_from_hash(get_missions(state)).slice(0, 5).forEach((mission) => {
      it(`should preserve user count for mission status ${mission.status} and user status ${user_status}`, () => {
        expect(array_from_hash(get_mission_users(mission.id, user_status)(state)).length).toEqual(mission.grouped_users_status[user_status].length)
      })
    })

    if (user_status == "available") {
      it("should compute all available users", () => {
        expect(array_from_hash(get_mission_users(6, "available")(state)).length).toEqual(1)
      })
    }
  })
})

describe("get_displayed_deals", () => {
  it("should not include default deals", () => {
    let deals = get_displayed_deals(state)
    expect(deals[state.recruiters.recruiters[1].default_deal_id]).toNotExist()
  })
})

describe("get_default_deal", () => {
  it("should return default deal", () => {
    expect(get_default_deal(state)).toMatch({
      id: 6,
    })
  })
})

describe("get_mission_proposals", () => {
  it("should find deleted missions", () => {
    expect(get_mission_proposals(state)[14]).toMatch({
      id: 14,
    })
  })
})

describe("get_deals", () => {
  it("should not include deleted missions", () => {
    expect(get_deals(state)[6].missions.length).toEqual(1)
  })

  it("should compute deals status", () => {
    const status = deal_status([
      {status: 'assigned'},
      {status: 'sent'},
    ])
    expect(status).toEqual('sent')
  })
})

describe("get_proposals", () => {
  it("should return proposals", () => {
    expect(get_proposals(3)(state)).toMatch([
      {id: 1, user: {id: 1}, fields: []},
    ])
  })
})