/**
 * Tally audit — these numbers go on a projector. Pins:
 * - criteria-mode weighted score computation on vote submit (hand-computed)
 * - getResults jury aggregation + ordering
 * - tie detection
 * - audience favorite tallies stay separate from jury scores (separate awards)
 */
import { describe, it, expect, beforeAll, afterAll } from 'vitest'
import { prisma, createCaller } from '../setup'
import {
  createTestUser,
  createTestProgram,
  createTestCompetition,
  createTestRound,
  createTestProject,
  cleanupTestData,
  uid,
} from '../helpers'
import { liveVotingRouter } from '@/server/routers/live-voting'

let program: any
let round: any
let session: any
let p1: any
let p2: any
let jurorA: any
let jurorB: any
let admin: any
let callerA: ReturnType<typeof createCaller>
let callerB: ReturnType<typeof createCaller>
let adminCaller: ReturnType<typeof createCaller>

const CRITERIA = [
  { id: 'impact', label: 'Impact', scale: 10, weight: 0.6 },
  { id: 'feasibility', label: 'Feasibility', scale: 5, weight: 0.4 },
]

beforeAll(async () => {
  program = await createTestProgram()
  const competition = await createTestCompetition(program.id)
  const juryGroup = await prisma.juryGroup.create({
    data: { competitionId: competition.id, name: 'Finals Jury', slug: uid('jg') },
  })
  round = await createTestRound(competition.id, { roundType: 'LIVE_FINAL', status: 'ROUND_ACTIVE' })
  await prisma.round.update({ where: { id: round.id }, data: { juryGroupId: juryGroup.id } })
  p1 = await createTestProject(program.id, { competitionCategory: 'STARTUP' })
  p2 = await createTestProject(program.id, { competitionCategory: 'STARTUP' })
  await prisma.round.update({
    where: { id: round.id },
    data: {
      configJson: {
        projectOrder: [p1.id, p2.id],
        presentationDurationMinutes: 5,
      },
    },
  })
  jurorA = await createTestUser('JURY_MEMBER')
  jurorB = await createTestUser('JURY_MEMBER')
  admin = await createTestUser('SUPER_ADMIN')
  for (const j of [jurorA, jurorB]) {
    await prisma.juryGroupMember.create({
      data: { juryGroupId: juryGroup.id, userId: j.id, role: 'MEMBER' },
    })
  }
  session = await prisma.liveVotingSession.create({
    data: {
      roundId: round.id,
      status: 'IN_PROGRESS',
      currentProjectId: p1.id,
      votingMode: 'criteria',
      criteriaJson: CRITERIA,
    },
  })
  callerA = createCaller(liveVotingRouter, jurorA)
  callerB = createCaller(liveVotingRouter, jurorB)
  adminCaller = createCaller(liveVotingRouter, admin)
})

afterAll(async () => {
  await cleanupTestData(program.id, [jurorA.id, jurorB.id, admin.id])
})

describe('criteria-mode weighted score', () => {
  it('computes the documented weighted normalization on submit', async () => {
    // impact 8/10 → 8.0 normalized ·0.6 = 4.8 ; feasibility 4/5 → 8.0 ·0.4 = 3.2
    // weighted sum = 8.0 → stored score 8
    const vote = await callerA.vote({
      sessionId: session.id,
      projectId: p1.id,
      score: 1, // ignored in criteria mode — recomputed server-side
      criterionScores: { impact: 8, feasibility: 4 },
    })
    expect(vote.score).toBe(8)
  })

  it('rejects an out-of-scale criterion score', async () => {
    await expect(
      callerA.vote({
        sessionId: session.id,
        projectId: p1.id,
        score: 1,
        criterionScores: { impact: 11, feasibility: 4 },
      })
    ).rejects.toThrow(/between 1 and/)
  })

  it('rejects a missing criterion', async () => {
    await expect(
      callerA.vote({
        sessionId: session.id,
        projectId: p1.id,
        score: 1,
        criterionScores: { impact: 8 },
      })
    ).rejects.toThrow(/Missing score/)
  })
})

describe('getResults aggregation', () => {
  it('averages jury votes per project and orders by weighted total', async () => {
    // jurorB scores p1: impact 4/10 → 2.4, feasibility 2/5 → 1.6 → 4
    await callerB.vote({
      sessionId: session.id,
      projectId: p1.id,
      score: 1,
      criterionScores: { impact: 4, feasibility: 2 },
    })
    // both jurors score p2 (revision path: p2 is in the order)
    // jurorA: impact 10/10 → 6.0, feasibility 5/5 → 4.0 → 10
    await callerA.vote({
      sessionId: session.id,
      projectId: p2.id,
      score: 1,
      criterionScores: { impact: 10, feasibility: 5 },
    })
    // jurorB: impact 6/10 → 3.6, feasibility 3/5 → 2.4 → 6
    await callerB.vote({
      sessionId: session.id,
      projectId: p2.id,
      score: 1,
      criterionScores: { impact: 6, feasibility: 3 },
    })

    const res = await adminCaller.getResults({ sessionId: session.id })
    // p1: (8+4)/2 = 6 ; p2: (10+6)/2 = 8 → p2 first
    expect(res.results[0].project?.id).toBe(p2.id)
    expect(res.results[0].juryAverage).toBe(8)
    expect(res.results[0].juryVoteCount).toBe(2)
    expect(res.results[1].project?.id).toBe(p1.id)
    expect(res.results[1].juryAverage).toBe(6)
    // audience weight defaults to 0 → weighted total equals jury average
    expect(res.results[0].weightedTotal).toBe(8)
    expect(res.weights.audience).toBe(0)
  })

  it('detects ties', async () => {
    // pull p1 up to match p2's average: change jurorB's p1 vote to 10 → (8+10)/2 = 9? no.
    // make both averages equal: set jurorA p1 → 10 (impact 10, feas 5) → p1 avg (10+4)/2 = 7
    // and jurorA p2 → 8 (impact 8, feas 4) → p2 avg (8+6)/2 = 7
    await callerA.vote({
      sessionId: session.id,
      projectId: p1.id,
      score: 1,
      criterionScores: { impact: 10, feasibility: 5 },
    })
    await callerA.vote({
      sessionId: session.id,
      projectId: p2.id,
      score: 1,
      criterionScores: { impact: 8, feasibility: 4 },
    })
    const res = await adminCaller.getResults({ sessionId: session.id })
    expect(res.results[0].weightedTotal).toBe(res.results[1].weightedTotal)
    expect(res.ties.length).toBeGreaterThan(0)
  })
})

describe('audience favorites stay separate', () => {
  it('favorite tallies do not touch jury weighted totals', async () => {
    await prisma.liveVotingSession.update({
      where: { id: session.id },
      data: { allowAudienceVotes: true },
    })
    await adminCaller.openAudienceWindow({
      sessionId: session.id,
      windowKey: 'CATEGORY:STARTUP',
      durationMinutes: 5,
    })
    const reg = await adminCaller.registerAudienceVoter({ sessionId: session.id })
    await adminCaller.castFavoriteVote({
      sessionId: session.id,
      token: reg.token,
      projectId: p1.id,
    })

    const tallies = await adminCaller.getFavoriteTallies({ sessionId: session.id })
    expect(tallies.windows[0].totalVotes).toBe(1)

    const res = await adminCaller.getResults({ sessionId: session.id })
    // favorite votes are NOT LiveVotes — jury aggregation unchanged
    expect(res.results.every((r: any) => r.audienceVoteCount === 0)).toBe(true)
  })
})