/**
 * Elections API Tests
 * Tests for Bug #1: Missing /api/elections/upcoming and /completed endpoints
 */

import * as api from "@/lib/api"

// Mock fetch
global.fetch = jest.fn()

describe("Elections API - Bug #1: Missing Endpoints Fix", () => {
  beforeEach(() => {
    jest.clearAllMocks()
    localStorage.getItem = jest.fn().mockReturnValue("test-token")
  })

  test("getActive elections endpoint works", async () => {
    const mockElections = [
      {
        id: 1,
        name: "Active Election",
        description: "Currently active",
        start_date: new Date().toISOString(),
        end_date: new Date(Date.now() + 86400000).toISOString(),
        is_active: true,
        results_published: false,
        candidates: [],
      },
    ]

    ;(global.fetch as jest.Mock).mockResolvedValueOnce({
      ok: true,
      status: 200,
      json: async () => mockElections,
    })

    const response = await api.electionsApi.getActive()

    expect(response.status).toBe(200)
    expect(response.data).toEqual(mockElections)
    expect(global.fetch).toHaveBeenCalledWith(
      expect.stringContaining("/api/elections/active"),
      expect.any(Object)
    )
  })

  test("getUpcoming elections endpoint works", async () => {
    const mockUpcomingElections = [
      {
        id: 2,
        name: "Upcoming Election",
        description: "Starting soon",
        start_date: new Date(Date.now() + 864000000).toISOString(),
        end_date: new Date(Date.now() + 950400000).toISOString(),
        is_active: true,
        results_published: false,
        candidates: [],
      },
    ]

    ;(global.fetch as jest.Mock).mockResolvedValueOnce({
      ok: true,
      status: 200,
      json: async () => mockUpcomingElections,
    })

    const response = await api.electionsApi.getUpcoming()

    expect(response.status).toBe(200)
    expect(response.data).toEqual(mockUpcomingElections)
    expect(global.fetch).toHaveBeenCalledWith(
      expect.stringContaining("/api/elections/upcoming"),
      expect.any(Object)
    )
  })

  test("getCompleted elections endpoint works", async () => {
    const mockCompletedElections = [
      {
        id: 3,
        name: "Completed Election",
        description: "Already finished",
        start_date: new Date(Date.now() - 864000000).toISOString(),
        end_date: new Date(Date.now() - 777600000).toISOString(),
        is_active: true,
        results_published: true,
        candidates: [],
      },
    ]

    ;(global.fetch as jest.Mock).mockResolvedValueOnce({
      ok: true,
      status: 200,
      json: async () => mockCompletedElections,
    })

    const response = await api.electionsApi.getCompleted()

    expect(response.status).toBe(200)
    expect(response.data).toEqual(mockCompletedElections)
    expect(global.fetch).toHaveBeenCalledWith(
      expect.stringContaining("/api/elections/completed"),
      expect.any(Object)
    )
  })

  test("all election endpoints accept authentication token", async () => {
    ;(global.fetch as jest.Mock).mockResolvedValue({
      ok: true,
      status: 200,
      json: async () => [],
    })

    const token = "test-auth-token"
    ;(localStorage.getItem as jest.Mock).mockReturnValue(token)

    await api.electionsApi.getActive()

    const callArgs = (global.fetch as jest.Mock).mock.calls[0][1]
    expect(callArgs.headers.Authorization).toBe(`Bearer ${token}`)
  })

  test("election endpoints handle errors gracefully", async () => {
    const errorMessage = "Server error"
    ;(global.fetch as jest.Mock).mockResolvedValueOnce({
      ok: false,
      status: 500,
      json: async () => ({ detail: errorMessage }),
    })

    const response = await api.electionsApi.getUpcoming()

    expect(response.error).toBeDefined()
    expect(response.status).toBe(500)
  })

  test("election endpoints return array of elections", async () => {
    const mockElections = [
      { id: 1, name: "Election 1" },
      { id: 2, name: "Election 2" },
    ]

    ;(global.fetch as jest.Mock).mockResolvedValueOnce({
      ok: true,
      status: 200,
      json: async () => mockElections,
    })

    const response = await api.electionsApi.getActive()

    expect(Array.isArray(response.data)).toBe(true)
    expect(response.data).toHaveLength(2)
  })
})

describe("Elections API - Response Format Consistency", () => {
  test("all election endpoints return consistent response format", async () => {
    const mockData = []

    ;(global.fetch as jest.Mock).mockResolvedValue({
      ok: true,
      status: 200,
      json: async () => mockData,
    })

    const activeResp = await api.electionsApi.getActive()
    const upcomingResp = await api.electionsApi.getUpcoming()
    const completedResp = await api.electionsApi.getCompleted()

    // All should have same structure
    expect(activeResp).toHaveProperty("data")
    expect(activeResp).toHaveProperty("status")
    expect(upcomingResp).toHaveProperty("data")
    expect(upcomingResp).toHaveProperty("status")
    expect(completedResp).toHaveProperty("data")
    expect(completedResp).toHaveProperty("status")
  })

  test("election endpoints return array directly, not wrapped in object", async () => {
    const mockElections = [{ id: 1, name: "Test" }]

    ;(global.fetch as jest.Mock).mockResolvedValueOnce({
      ok: true,
      status: 200,
      json: async () => mockElections,
    })

    const response = await api.electionsApi.getActive()

    // Should be array, not { elections: [...] }
    expect(Array.isArray(response.data)).toBe(true)
    expect(response.data[0].name).toBe("Test")
  })
})