'use client';

import { getTierMultiplier } from '@/lib/game/skill-evolution';
import { hasSpecial, SPECIAL_EFFECTS } from '@/lib/game/effects';
import { fmt, fmtDec } from '@/lib/game/stores';
import type { UnifiedEffects } from '@/lib/game/effects';
import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
import { Separator } from '@/components/ui/separator';
import { Droplet } from 'lucide-react';

// Modular stores
import { useSkillStore, usePrestigeStore, useManaStore } from '@/lib/game/stores';

export interface ManaStatsSectionProps {
  upgradeEffects: UnifiedEffects;
  maxMana: number;
  baseRegen: number;
  clickMana: number;
  meditationMultiplier: number;
  effectiveRegen: number;
  incursionStrength: number;
  manaCascadeBonus: number;
  manaWaterfallBonus: number;
  hasManaWaterfall: boolean;
  hasFlowSurge: boolean;
  hasManaOverflow: boolean;
  hasEternalFlow: boolean;
}

export function ManaStatsSection({
  upgradeEffects,
  maxMana,
  baseRegen,
  clickMana,
  meditationMultiplier,
  effectiveRegen,
  incursionStrength,
  manaCascadeBonus,
  manaWaterfallBonus,
  hasManaWaterfall,
  hasFlowSurge,
  hasManaOverflow,
  hasEternalFlow,
}: ManaStatsSectionProps) {
  // Get state from modular stores
  const skills = useSkillStore((s) => s.skills);
  const skillTiers = useSkillStore((s) => s.skillTiers);
  const prestigeUpgrades = usePrestigeStore((s) => s.prestigeUpgrades);
  const rawMana = useManaStore((s) => s.rawMana);

  return (
    <Card className="bg-gray-900/80 border-gray-700">
      <CardHeader className="pb-2">
        <CardTitle className="text-blue-400 game-panel-title text-xs flex items-center gap-2">
          <Droplet className="w-4 h-4" />
          Mana Stats
        </CardTitle>
      </CardHeader>
      <CardContent>
        <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
          <div className="space-y-2">
            <div className="flex justify-between text-sm">
              <span className="text-gray-400">Base Max Mana:</span>
              <span className="text-gray-200">100</span>
            </div>
            <div className="flex justify-between text-sm">
              <span className="text-gray-400">Mana Well Bonus:</span>
              <span className="text-blue-300">
                {(() => {
                  const mw = skillTiers?.manaWell || 1;
                  const tieredSkillId = mw > 1 ? `manaWell_t${mw}` : 'manaWell';
                  const level = skills[tieredSkillId] || skills.manaWell || 0;
                  const tierMult = getTierMultiplier(tieredSkillId);
                  return `+${fmt(level * 100 * tierMult)} (${level} lvl × 100 × ${tierMult}x tier)`;
                })()}
              </span>
            </div>
            <div className="flex justify-between text-sm">
              <span className="text-gray-400">Prestige Mana Well:</span>
              <span className="text-blue-300">+{fmt((prestigeUpgrades.manaWell || 0) * 500)}</span>
            </div>
            {upgradeEffects.maxManaBonus > 0 && (
              <div className="flex justify-between text-sm">
                <span className="text-amber-400">Upgrade Mana Bonus:</span>
                <span className="text-amber-300">+{fmt(upgradeEffects.maxManaBonus)}</span>
              </div>
            )}
            {upgradeEffects.maxManaMultiplier > 1 && (
              <div className="flex justify-between text-sm">
                <span className="text-amber-400">Upgrade Mana Multiplier:</span>
                <span className="text-amber-300">×{fmtDec(upgradeEffects.maxManaMultiplier, 2)}</span>
              </div>
            )}
            <div className="flex justify-between text-sm font-semibold border-t border-gray-700 pt-2">
              <span className="text-gray-300">Total Max Mana:</span>
              <span className="text-blue-400">{fmt(maxMana)}</span>
            </div>
          </div>
          <div className="space-y-2">
            <div className="flex justify-between text-sm">
              <span className="text-gray-400">Base Regen:</span>
              <span className="text-gray-200">2/hr</span>
            </div>
            <div className="flex justify-between text-sm">
              <span className="text-gray-400">Mana Flow Bonus:</span>
              <span className="text-blue-300">
                {(() => {
                  const mf = skillTiers?.manaFlow || 1;
                  const tieredSkillId = mf > 1 ? `manaFlow_t${mf}` : 'manaFlow';
                  const level = skills[tieredSkillId] || skills.manaFlow || 0;
                  const tierMult = getTierMultiplier(tieredSkillId);
                  return `+${fmtDec(level * 1 * tierMult)}/hr (${level} lvl × 1 × ${tierMult}x tier)`;
                })()}
              </span>
            </div>
            <div className="flex justify-between text-sm">
              <span className="text-gray-400">Mana Spring Bonus:</span>
              <span className="text-blue-300">+{(skills.manaSpring || 0) * 2}/hr</span>
            </div>
            <div className="flex justify-between text-sm">
              <span className="text-gray-400">Prestige Mana Flow:</span>
              <span className="text-blue-300">+{fmtDec((prestigeUpgrades.manaFlow || 0) * 0.5)}/hr</span>
            </div>
            <div className="flex justify-between text-sm">
              <span className="text-gray-400">Temporal Echo:</span>
              <span className="text-blue-300">×{fmtDec(1 + (prestigeUpgrades.temporalEcho || 0) * 0.1, 2)}</span>
            </div>
            <div className="flex justify-between text-sm font-semibold border-t border-gray-700 pt-2">
              <span className="text-gray-300">Base Regen:</span>
              <span className="text-blue-400">{fmtDec(baseRegen, 2)}/hr</span>
            </div>
            {upgradeEffects.regenBonus > 0 && (
              <div className="flex justify-between text-sm">
                <span className="text-amber-400">Upgrade Regen Bonus:</span>
                <span className="text-amber-300">+{fmtDec(upgradeEffects.regenBonus, 2)}/hr</span>
              </div>
            )}
            {upgradeEffects.permanentRegenBonus > 0 && (
              <div className="flex justify-between text-sm">
                <span className="text-amber-400">Permanent Regen Bonus:</span>
                <span className="text-amber-300">+{fmtDec(upgradeEffects.permanentRegenBonus, 2)}/hr</span>
              </div>
            )}
            {upgradeEffects.regenMultiplier > 1 && (
              <div className="flex justify-between text-sm">
                <span className="text-amber-400">Upgrade Regen Multiplier:</span>
                <span className="text-amber-300">×{fmtDec(upgradeEffects.regenMultiplier, 2)}</span>
              </div>
            )}
          </div>
        </div>
        <Separator className="bg-gray-700 my-3" />
        {upgradeEffects.activeUpgrades.length > 0 && (
          <>
            <div className="mb-2">
              <span className="text-xs text-amber-400 game-panel-title">Active Skill Upgrades</span>
            </div>
            <div className="grid grid-cols-1 md:grid-cols-2 gap-2 mb-3">
              {upgradeEffects.activeUpgrades.map((upgrade, idx) => (
                <div key={idx} className="flex justify-between text-xs bg-gray-800/50 rounded px-2 py-1">
                  <span className="text-gray-300">{upgrade.name}</span>
                  <span className="text-gray-400">{upgrade.desc}</span>
                </div>
              ))}
            </div>
            <Separator className="bg-gray-700 my-3" />
          </>
        )}
        <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
          <div className="space-y-2">
            <div className="flex justify-between text-sm">
              <span className="text-gray-400">Click Mana Value:</span>
              <span className="text-purple-300">+{clickMana}</span>
            </div>
            <div className="flex justify-between text-sm">
              <span className="text-gray-400">Mana Tap Bonus:</span>
              <span className="text-purple-300">+{skills.manaTap || 0}</span>
            </div>
            <div className="flex justify-between text-sm">
              <span className="text-gray-400">Mana Surge Bonus:</span>
              <span className="text-purple-300">+{(skills.manaSurge || 0) * 3}</span>
            </div>
            <div className="flex justify-between text-sm">
              <span className="text-gray-400">Mana Overflow:</span>
              <span className="text-purple-300">×{fmtDec(1 + (skills.manaOverflow || 0) * 0.25, 2)}</span>
            </div>
          </div>
          <div className="space-y-2">
            <div className="flex justify-between text-sm">
              <span className={`font-semibold ${meditationMultiplier > 1.5 ? 'text-purple-400' : 'text-gray-300'}`}>
                Meditation Multiplier:
              </span>
              <span className={`font-semibold ${meditationMultiplier > 1.5 ? 'text-purple-400' : 'text-gray-300'}`}>
                {fmtDec(meditationMultiplier, 2)}x
              </span>
            </div>
            <div className="flex justify-between text-sm">
              <span className="text-gray-300">Effective Regen:</span>
              <span className="text-green-400 font-semibold">{fmtDec(effectiveRegen, 2)}/hr</span>
            </div>
            {incursionStrength > 0 && !hasSpecial(upgradeEffects, SPECIAL_EFFECTS.STEADY_STREAM) && (
              <div className="flex justify-between text-sm">
                <span className="text-red-400">Incursion Penalty:</span>
                <span className="text-red-400">-{Math.round(incursionStrength * 100)}%</span>
              </div>
            )}
            {hasSpecial(upgradeEffects, SPECIAL_EFFECTS.STEADY_STREAM) && incursionStrength > 0 && (
              <div className="flex justify-between text-sm">
                <span className="text-green-400">Steady Stream:</span>
                <span className="text-green-400">Immune to incursion</span>
              </div>
            )}
            {manaCascadeBonus > 0 && (
              <div className="flex justify-between text-sm">
                <span className="text-cyan-400">Mana Cascade Bonus:</span>
                <span className="text-cyan-400">+{fmtDec(manaCascadeBonus, 2)}/hr</span>
              </div>
            )}
            {manaWaterfallBonus > 0 && (
              <div className="flex justify-between text-sm">
                <span className="text-cyan-400">Mana Waterfall Bonus:</span>
                <span className="text-cyan-400">+{fmtDec(manaWaterfallBonus, 2)}/hr</span>
              </div>
            )}
            {hasManaWaterfall && (
              <div className="flex justify-between text-sm">
                <span className="text-cyan-400">Mana Waterfall:</span>
                <span className="text-cyan-400">+0.25 regen per 100 max mana</span>
              </div>
            )}
            {hasFlowSurge && (
              <div className="flex justify-between text-sm">
                <span className="text-cyan-400">Flow Surge:</span>
                <span className="text-cyan-400">Clicks activate +100% regen for 1hr</span>
              </div>
            )}
            {hasManaOverflow && (
              <div className="flex justify-between text-sm">
                <span className="text-cyan-400">Mana Overflow:</span>
                <span className="text-cyan-400">Raw mana can exceed max by 20%</span>
              </div>
            )}
            {hasEternalFlow && (
              <div className="flex justify-between text-sm">
                <span className="text-green-400">Eternal Flow:</span>
                <span className="text-green-400">Regen immune to ALL penalties</span>
              </div>
            )}
            {hasSpecial(upgradeEffects, SPECIAL_EFFECTS.MANA_TORRENT) && rawMana > maxMana * 0.75 && (
              <div className="flex justify-between text-sm">
                <span className="text-cyan-400">Mana Torrent:</span>
                <span className="text-cyan-400">+50% regen (high mana)</span>
              </div>
            )}
            {hasSpecial(upgradeEffects, SPECIAL_EFFECTS.DESPERATE_WELLS) && rawMana < maxMana * 0.25 && (
              <div className="flex justify-between text-sm">
                <span className="text-cyan-400">Desperate Wells:</span>
                <span className="text-cyan-400">+50% regen (low mana)</span>
              </div>
            )}
          </div>
        </div>
      </CardContent>
    </Card>
  );
}

ManaStatsSection.displayName = "ManaStatsSection";