/**
 * 1.13c Numerical & Runtime Verification Suite — Skill #028: Dopplezon (AMA)
 * Gitea Tracking Issue: #182
 */
import { describe, expect, it } from 'vitest'
import { getSharedDataRegistry } from '../../../src/baker/mpq-archive-source.ts'
import { UnitStatList } from '../../../src/server/engine/stat-list.ts'
import { WorldArena } from '../../../src/server/engine/world-arena.ts'
import { skillModule } from '../../../src/server/skills/impl/ama/skill-028-dopplezon.ts'
import { calculateDecoyStats } from '../../../src/common/skills/amazon-passive.ts'

describe('[Skill #028] Dopplezon (AMA) — 1.13c Parity (Issue #182)', () => {
  it('evaluates exact 1.13c Skills.txt / Missiles.txt formulas at slvl 1, 10, and 20', async () => {
    const registry = await getSharedDataRegistry()
    const skillRec = registry.getSkillById(28)!
    expect(skillRec).toBeDefined()
    expect(skillModule.skillId).toBe(28)
    expect(skillModule.name).toBe("Dopplezon")
    expect(skillModule.charClass).toBe("ama")

    const stats1 = new UnitStatList()
    stats1.setBaseSkillLevel(28, 1)
    const r1 = skillModule.evaluate!({ registry, skill: skillRec, slvl: 1, blvl: 1, statList: stats1 })
    expect(r1.manaCost).toBe(19)
    expect(r1.manaCost256).toBe(4864)
    expect(r1.minPhysDmg).toBe(0)
    expect(r1.maxPhysDmg).toBe(0)
    expect(r1.minElemDmg256).toBe(0)
    expect(r1.maxElemDmg256).toBe(0)

    const stats10 = new UnitStatList()
    stats10.setBaseSkillLevel(28, 10)
    const r10 = skillModule.evaluate!({ registry, skill: skillRec, slvl: 10, blvl: 10, statList: stats10 })
    expect(r10.manaCost).toBe(12)
    expect(r10.manaCost256).toBe(3136)
    expect(r10.minPhysDmg).toBe(0)
    expect(r10.maxPhysDmg).toBe(0)
    expect(r10.minElemDmg256).toBe(0)
    expect(r10.maxElemDmg256).toBe(0)

    const stats20 = new UnitStatList()
    stats20.setBaseSkillLevel(28, 20)
    const r20 = skillModule.evaluate!({ registry, skill: skillRec, slvl: 20, blvl: 20, statList: stats20 })
    expect(r20.manaCost).toBe(4)
    expect(r20.manaCost256).toBe(1216)
    expect(r20.minPhysDmg).toBe(0)
    expect(r20.maxPhysDmg).toBe(0)
    expect(r20.minElemDmg256).toBe(0)
    expect(r20.maxElemDmg256).toBe(0)
    expect(r20.durationFrames).toBe(0)
    expect(r20.radiusSubtiles).toBe(2625)
    expect(r20.petMax).toBe(1)
    expect(r20.cooldownFrames).toBe(0)
  })

  it('enforces 1.13c blvl synergy rule (hard points boost synergy; +skills and item charges do NOT)', async () => {
    const registry = await getSharedDataRegistry()
    const skillRec = registry.getSkillById(28)!
    const synId = null

    const statsBase = new UnitStatList()
    statsBase.setBaseSkillLevel(28, 20)
    if (synId !== null) {
      statsBase.setBaseSkillLevel(synId, 20)
    }
    const withHardPoints = skillModule.evaluate!({
      registry,
      skill: skillRec,
      slvl: 20,
      blvl: 20,
      statList: statsBase,
    })
    expect(withHardPoints.synergyBonusPct).toBe(0)

    // +20 allskills and +33 Marrowwalk charges without hard points must yield 0 synergy
    const statsSoftOnly = new UnitStatList()
    statsSoftOnly.setBaseSkillLevel(28, 20)
    statsSoftOnly.addStat('item_allskills', 20)
    if (synId !== null) {
      statsSoftOnly.setChargedSkillLevel(synId, 33)
    }
    const withSoftOnly = skillModule.evaluate!({
      registry,
      skill: skillRec,
      slvl: 20,
      blvl: 20,
      statList: statsSoftOnly,
    })
    expect(withSoftOnly.synergyBonusPct).toBe(0)
  })

  it('executes runtime skill effect in WorldArena (castCount, action frame, and combat/state/missile/summon outcome)', async () => {
    const registry = await getSharedDataRegistry()
    const arena = new WorldArena({
      registry,
      classCode: "ama",
      skillId: 28,
      slvl: 20,
    })
    const outcome = arena.triggerCast()
    arena.stepTicks(15)
    const dbg = arena.getDebugState()

    expect(dbg.ready).toBe(true)
    expect(dbg.skillId).toBe(28)
    expect(dbg.castCount).toBeGreaterThanOrEqual(1)
    expect(dbg.actionFrameTriggered).toBe(true)
    expect(outcome?.executed).toBe(true)
  })

  it('validates 1.13c calculateDecoyStats pure calculations and boundary invariants', () => {
    // slvl 1: 250 frames (10.0s), 60% of Amazon life, 4% res, defense = amazonDef, stationary, draws threat, 19 mana (4864)
    const stats1 = calculateDecoyStats(1, 500, 150, { avoidLvl: 5, evadeLvl: 3 })
    expect(stats1.durationFrames).toBe(250)
    expect(stats1.durationSeconds).toBe(10)
    expect(stats1.hp).toBe(300) // 500 * 0.6
    expect(stats1.hpPctOfAmazon).toBe(60)
    expect(stats1.allResistancesPct).toBe(4)
    expect(stats1.defense).toBe(150)
    expect(stats1.isStationary).toBe(true)
    expect(stats1.drawsThreat).toBe(true)
    expect(stats1.inheritedAvoidLvl).toBe(5)
    expect(stats1.inheritedEvadeLvl).toBe(3)
    expect(stats1.manaCost).toBe(19)
    expect(stats1.manaCost256).toBe(4864)

    // slvl 10: 250 + 125*9 = 1375 frames (55.0s), 150% Amazon life, 40% res, 10 mana (2560) or 12 int mana
    const stats10 = calculateDecoyStats(10, 500, 200)
    expect(stats10.durationFrames).toBe(1375)
    expect(stats10.durationSeconds).toBe(55)
    expect(stats10.hp).toBe(750) // 500 * 1.5
    expect(stats10.allResistancesPct).toBe(40)

    // slvl 20: 250 + 125*19 = 2625 frames (105.0s), 250% Amazon life, capped at 80% res (min(85, 4*20)=80), min mana 1
    const stats20 = calculateDecoyStats(20, 500, 300)
    expect(stats20.durationFrames).toBe(2625)
    expect(stats20.durationSeconds).toBe(105)
    expect(stats20.hp).toBe(1250) // 500 * 2.5
    expect(stats20.allResistancesPct).toBe(80)

    // slvl 25: 4*25 = 100% -> capped at 85%
    const stats25 = calculateDecoyStats(25, 500, 300)
    expect(stats25.allResistancesPct).toBe(85)
  })
})