import { afterAll, describe, expect, it } from 'vitest'
import { prisma, createCaller } from '../setup'
import {
  createTestUser,
  createTestProgram,
  createTestProject,
  createTestCompetition,
  createTestRound,
  cleanupTestData,
  uid,
} from '../helpers'
import { finalistRouter } from '../../src/server/routers/finalist'

async function createApplicant(role: 'LEAD' | 'MEMBER' = 'MEMBER') {
  const id = uid('user')
  return prisma.user.create({
    data: {
      id,
      email: `${id}@test.local`,
      name: `Test ${role}`,
      role: 'APPLICANT',
      roles: ['APPLICANT'],
      status: 'ACTIVE',
    },
  })
}

async function setup(opts: {
  programName: string
  status?: 'PENDING' | 'CONFIRMED' | 'DECLINED'
}) {
  const program = await createTestProgram({ name: opts.programName, defaultAttendeeCap: 3 })
  const project = await createTestProject(program.id, {
    title: 'P',
    competitionCategory: 'STARTUP',
  })
  const lead = await createApplicant('LEAD')
  const member = await createApplicant('MEMBER')
  await prisma.teamMember.createMany({
    data: [
      { projectId: project.id, userId: lead.id, role: 'LEAD' },
      { projectId: project.id, userId: member.id, role: 'MEMBER' },
    ],
  })
  const competition = await createTestCompetition(program.id)
  await createTestRound(competition.id, {
    roundType: 'LIVE_FINAL',
    sortOrder: 99,
    configJson: { confirmationWindowHours: 24 },
  })
  const confirmation = await prisma.finalistConfirmation.create({
    data: {
      projectId: project.id,
      category: 'STARTUP',
      status: opts.status ?? 'PENDING',
      deadline: new Date(Date.now() + 86_400_000),
      token: `tok_${uid()}`,
      confirmedAt: opts.status === 'CONFIRMED' ? new Date() : null,
    },
  })
  return { program, project, lead, member, confirmation }
}

describe('finalist.adminConfirm', () => {
  const programIds: string[] = []
  const userIds: string[] = []

  afterAll(async () => {
    for (const programId of programIds) {
      await prisma.attendingMember.deleteMany({
        where: { confirmation: { project: { programId } } },
      })
      await prisma.finalistConfirmation.deleteMany({ where: { project: { programId } } })
      await cleanupTestData(programId, [])
    }
    if (userIds.length > 0) {
      await prisma.user.deleteMany({ where: { id: { in: userIds } } })
    }
  })

  it('flips PENDING → CONFIRMED with attendee rows + audit log', async () => {
    const admin = await createTestUser('SUPER_ADMIN')
    userIds.push(admin.id)
    const { program, lead, member, confirmation } = await setup({
      programName: `admin-confirm-${uid()}`,
    })
    programIds.push(program.id)
    userIds.push(lead.id, member.id)

    const caller = createCaller(finalistRouter, {
      id: admin.id,
      email: admin.email,
      role: 'SUPER_ADMIN',
    })
    await caller.adminConfirm({
      confirmationId: confirmation.id,
      attendingUserIds: [lead.id, member.id],
      visaFlags: { [member.id]: true },
    })

    const updated = await prisma.finalistConfirmation.findUniqueOrThrow({
      where: { id: confirmation.id },
    })
    expect(updated.status).toBe('CONFIRMED')
    expect(updated.confirmedAt).not.toBeNull()

    const attendees = await prisma.attendingMember.findMany({
      where: { confirmationId: confirmation.id },
    })
    expect(attendees).toHaveLength(2)
    expect(attendees.find((a) => a.userId === member.id)?.needsVisa).toBe(true)

    const audit = await prisma.auditLog.findFirst({
      where: { action: 'FINALIST_ADMIN_CONFIRM', entityId: confirmation.id },
    })
    expect(audit).not.toBeNull()
  })

  it('rejects when confirmation is not PENDING', async () => {
    const admin = await createTestUser('SUPER_ADMIN')
    userIds.push(admin.id)
    const { program, lead, member, confirmation } = await setup({
      programName: `admin-confirm-already-${uid()}`,
      status: 'CONFIRMED',
    })
    programIds.push(program.id)
    userIds.push(lead.id, member.id)

    const caller = createCaller(finalistRouter, {
      id: admin.id,
      email: admin.email,
      role: 'SUPER_ADMIN',
    })
    await expect(
      caller.adminConfirm({
        confirmationId: confirmation.id,
        attendingUserIds: [lead.id],
      }),
    ).rejects.toThrow(/PENDING/i)
  })

  it('rejects when attendee is not a team member', async () => {
    const admin = await createTestUser('SUPER_ADMIN')
    userIds.push(admin.id)
    const { program, lead, member, confirmation } = await setup({
      programName: `admin-confirm-foreign-${uid()}`,
    })
    programIds.push(program.id)
    userIds.push(lead.id, member.id)

    const outsider = await createApplicant('MEMBER')
    userIds.push(outsider.id)

    const caller = createCaller(finalistRouter, {
      id: admin.id,
      email: admin.email,
      role: 'SUPER_ADMIN',
    })
    await expect(
      caller.adminConfirm({
        confirmationId: confirmation.id,
        attendingUserIds: [lead.id, outsider.id],
      }),
    ).rejects.toThrow(/not a team member/i)
  })
})

describe('finalist.adminDecline', () => {
  const programIds: string[] = []
  const userIds: string[] = []

  afterAll(async () => {
    for (const programId of programIds) {
      await prisma.attendingMember.deleteMany({
        where: { confirmation: { project: { programId } } },
      })
      await prisma.waitlistEntry.deleteMany({ where: { programId } })
      await prisma.finalistConfirmation.deleteMany({ where: { project: { programId } } })
      await cleanupTestData(programId, [])
    }
    if (userIds.length > 0) {
      await prisma.user.deleteMany({ where: { id: { in: userIds } } })
    }
  })

  it('flips PENDING → DECLINED with reason + audit log', async () => {
    const admin = await createTestUser('SUPER_ADMIN')
    userIds.push(admin.id)
    const { program, lead, member, confirmation } = await setup({
      programName: `admin-decline-${uid()}`,
    })
    programIds.push(program.id)
    userIds.push(lead.id, member.id)

    const caller = createCaller(finalistRouter, {
      id: admin.id,
      email: admin.email,
      role: 'SUPER_ADMIN',
    })
    await caller.adminDecline({
      confirmationId: confirmation.id,
      reason: 'Team replied by email — schedule conflict',
    })

    const updated = await prisma.finalistConfirmation.findUniqueOrThrow({
      where: { id: confirmation.id },
    })
    expect(updated.status).toBe('DECLINED')
    expect(updated.declineReason).toContain('schedule conflict')

    const audit = await prisma.auditLog.findFirst({
      where: { action: 'FINALIST_ADMIN_DECLINE', entityId: confirmation.id },
    })
    expect(audit).not.toBeNull()
  })

  it('rejects when confirmation is not PENDING', async () => {
    const admin = await createTestUser('SUPER_ADMIN')
    userIds.push(admin.id)
    const { program, lead, member, confirmation } = await setup({
      programName: `admin-decline-already-${uid()}`,
      status: 'CONFIRMED',
    })
    programIds.push(program.id)
    userIds.push(lead.id, member.id)

    const caller = createCaller(finalistRouter, {
      id: admin.id,
      email: admin.email,
      role: 'SUPER_ADMIN',
    })
    await expect(
      caller.adminDecline({ confirmationId: confirmation.id }),
    ).rejects.toThrow(/PENDING/i)
  })
})