import { renderHook } from "@testing-library/react"
import { describe, it, expect } from "vitest"
import { useCheckboxChecked } from "./useCheckboxChecked"

type Item = {
  id: string
  name: string
}

describe("useCheckboxChecked with Map", () => {
  it("returns false when no items are selected", () => {
    const allItems: Item[] = [
      { id: "1", name: "Item 1" },
      { id: "2", name: "Item 2" },
    ]
    const selectedItems = new Map()

    const { result } = renderHook(() =>
      useCheckboxChecked(allItems, selectedItems),
    )

    expect(result.current).toBe(false)
  })

  it("returns true when all items are selected", () => {
    const allItems: Item[] = [
      { id: "1", name: "Item 1" },
      { id: "2", name: "Item 2" },
    ]
    const selectedItems = new Map([
      ["1", { id: "1", name: "Item 1" }],
      ["2", { id: "2", name: "Item 2" }],
    ])

    const { result } = renderHook(() =>
      useCheckboxChecked(allItems, selectedItems),
    )

    expect(result.current).toBe(true)
  })

  it('returns "indeterminate" when some but not all items are selected', () => {
    const allItems: Item[] = [
      { id: "1", name: "Item 1" },
      { id: "2", name: "Item 2" },
    ]
    const selectedItems = new Map([["1", { id: "1", name: "Item 1" }]])

    const { result } = renderHook(() =>
      useCheckboxChecked(allItems, selectedItems),
    )

    expect(result.current).toBe("indeterminate")
  })

  it("works with an empty list of allItems and returns false", () => {
    const allItems: Item[] = []
    const selectedItems = new Map()

    const { result } = renderHook(() =>
      useCheckboxChecked(allItems, selectedItems),
    )

    expect(result.current).toBe(false)
  })

  it("handles items with different ids properly", () => {
    const allItems: Item[] = [
      { id: "abc", name: "Item A" },
      { id: "def", name: "Item B" },
    ]
    const selectedItems = new Map([["abc", { id: "abc", name: "Item A" }]])

    const { result } = renderHook(() =>
      useCheckboxChecked(allItems, selectedItems),
    )

    expect(result.current).toBe("indeterminate")
  })
})