import { describe, expect, it } from "vitest"

import { mustGuaranteeBooking } from "./helpers"

const buildRoom = (
  overrides: Partial<{
    memberMustBeGuaranteed: boolean
    mustBeGuaranteed: boolean
    guest: { join: boolean; membershipNo?: string }
  }> = {}
) => ({
  room: {
    memberMustBeGuaranteed: false,
    mustBeGuaranteed: false,
    guest: { join: false, membershipNo: undefined },
    ...overrides,
  },
})

describe("mustGuaranteeBooking", () => {
  it("returns true when the first room requires a member guarantee for a logged-in user", () => {
    const rooms = [
      buildRoom({
        memberMustBeGuaranteed: true,
        mustBeGuaranteed: false,
      }),
    ]

    const booking = { rooms: [{}] }

    expect(
      mustGuaranteeBooking({
        isUserLoggedIn: true,
        booking,
        rooms,
      })
    ).toBe(true)
  })

  it("returns memberMustBeGuaranteed when guest has membership details and counter rate code", () => {
    const rooms = [
      buildRoom(),
      buildRoom({
        memberMustBeGuaranteed: true,
        guest: { join: true },
      }),
    ]

    const booking = { rooms: [{}, { counterRateCode: "COUNTER" }] }

    expect(
      mustGuaranteeBooking({
        isUserLoggedIn: false,
        booking,
        rooms,
      })
    ).toBe(true)
  })

  it("returns false when member condition is not met despite counter rate code", () => {
    const rooms = [
      buildRoom(),
      buildRoom({
        memberMustBeGuaranteed: false,
        guest: { join: true },
      }),
    ]

    const booking = { rooms: [{}, { counterRateCode: "COUNTER" }] }

    expect(
      mustGuaranteeBooking({
        isUserLoggedIn: false,
        booking,
        rooms,
      })
    ).toBe(false)
  })

  it("falls back to mustBeGuaranteed when no member-specific rules apply", () => {
    const rooms = [
      buildRoom({
        memberMustBeGuaranteed: false,
        mustBeGuaranteed: true,
      }),
    ]

    const booking = { rooms: [{}] }

    expect(
      mustGuaranteeBooking({
        isUserLoggedIn: false,
        booking,
        rooms,
      })
    ).toBe(true)
  })
})