import { useState, useMemo } from 'react';
import { useWindStore } from '@/store/appStore';
import {
  Dialog,
  DialogContent,
  DialogDescription,
  DialogHeader,
  DialogTitle,
  DialogTrigger,
} from '@/components/ui/dialog';
import { Tabs, TabsContent, TabsList, TabsTrigger } from '@/components/ui/tabs';
import { Slider } from '@/components/ui/slider';
import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from '@/components/ui/select';
import { Badge } from '@/components/ui/badge';
import { Input } from '@/components/ui/input';
import { searchStations } from '@/lib/stations-lookup';
import { Settings2 } from 'lucide-react';
import { Button } from '@/components/ui/button';
import { IsopletasModal } from '@/components/IsopletasModal';
import { InfoV0Modal } from '@/components/InfoV0Modal';
import { InfoParamModal } from '@/components/InfoParamModal';

interface GlobalWindSettingsModalProps {
  trigger?: React.ReactNode;
}

export function GlobalWindSettingsModal({ trigger }: GlobalWindSettingsModalProps) {
  const {
    v0,
    s1,
    s3,
    s3Group,
    terrainCategory,
    structureClass,
    s2,
    vk,
    q,
    setV0,
    setS1,
    setS3,
    setS3Group,
    setTerrainCategory,
    locality,
    setLocality,
    fviz,
    setFviz,
  } = useWindStore();

  const [stationQuery, setStationQuery] = useState('');
  const [v0Filter, setV0Filter] = useState<number | null>(null);

  const filteredStations = useMemo(() => {
    let stations = searchStations(stationQuery);
    if (v0Filter !== null) {
      stations = stations.filter((s) => s.v0 === v0Filter);
    }
    return stations;
  }, [stationQuery, v0Filter]);

  return (
    <Dialog>
      <DialogTrigger asChild>
        {trigger || (
          <Button variant="outline" size="sm" className="gap-2 bg-background shadow-sm hover:bg-muted/50 border-primary/20 text-primary">
            <Settings2 className="w-4 h-4" />
            <span className="hidden sm:inline">Parâmetros do Vento</span>
          </Button>
        )}
      </DialogTrigger>
      <DialogContent className="sm:max-w-[500px] p-4 sm:p-6">
        <DialogHeader>
          <DialogTitle>Parâmetros do Vento</DialogTitle>
          <DialogDescription>
            Defina os parâmetros do vento que afetam todas as estruturas do projeto.
          </DialogDescription>
        </DialogHeader>

        <Tabs defaultValue="norma" className="w-full mt-2 min-w-0">
          <TabsList className="flex w-full mb-4 bg-muted p-1 text-xs min-w-0">
            <TabsTrigger value="norma" className="text-xs py-1 px-1.5 flex-1">NBR 6123</TabsTrigger>
            <TabsTrigger value="local" className="text-xs py-1 px-1.5 flex-1">Localidade</TabsTrigger>
            <TabsTrigger value="vizinhanca" className="text-xs py-1 px-1.5 flex-1">Vizinhança 3D</TabsTrigger>
          </TabsList>

          <TabsContent value="norma" className="space-y-4 min-w-0">
            <div className="space-y-2">
              <div className="flex justify-between items-center">
                <div className="flex items-center gap-1.5">
                  <label className="text-xs font-medium text-foreground">Velocidade Básica (V₀)</label>
                  <InfoParamModal type="v0" />
                </div>
                <span className="text-xs text-muted-foreground font-mono">{v0} m/s</span>
              </div>
              <Slider min={25} max={55} step={1} value={[v0]} onValueChange={(vals) => setV0(vals[0])} className="py-1 cursor-pointer" />
            </div>

            <div className="space-y-1">
              <div className="flex items-center gap-1.5 mb-1">
                <label className="text-xs font-medium text-foreground">Fator Topográfico (S₁)</label>
                <InfoParamModal type="s1" />
              </div>
              <Select value={s1.toString()} onValueChange={(val) => setS1(Number(val))}>
                <SelectTrigger className="w-full text-xs h-8"><SelectValue placeholder="S₁" /></SelectTrigger>
                <SelectContent>
                  <SelectItem value="0.9">0,9 (Vale profissional protegido)</SelectItem>
                  <SelectItem value="1">1,0 (Terreno plano)</SelectItem>
                  <SelectItem value="1.1">1,1 (Talude)</SelectItem>
                  <SelectItem value="1.2">1,2 (Morro)</SelectItem>
                </SelectContent>
              </Select>
            </div>

            <div className="space-y-1">
              <div className="flex items-center gap-1.5 mb-1">
                <label className="text-xs font-medium text-foreground">Categoria do Terreno (S₂)</label>
                <InfoParamModal type="s2" />
              </div>
              <Select value={terrainCategory} onValueChange={(val) => setTerrainCategory(val as typeof terrainCategory)}>
                <SelectTrigger className="w-full text-xs h-8"><SelectValue placeholder="Categoria" /></SelectTrigger>
                <SelectContent>
                  <SelectItem value="I">I — Superfícies lisas (Mar calmo, lagos, rios)</SelectItem>
                  <SelectItem value="II">II — Terrenos abertos em nível (Campos, pastos)</SelectItem>
                  <SelectItem value="III">III — Terrenos planos/ondulados c/ obstáculos (Granjas, subúrbios rurais)</SelectItem>
                  <SelectItem value="IV">IV — Obstáculos numerosos e próximos (Cidades pequenas/médias)</SelectItem>
                  <SelectItem value="V">V — Obstáculos numerosos e altos (Grandes cidades, centros industriais)</SelectItem>
                </SelectContent>
              </Select>
            </div>

            <div className="rounded-md border bg-muted/40 p-2 text-[11px] space-y-1">
              <div className="flex justify-between"><span>Classe (maior dimensão):</span><span className="font-mono font-medium">{structureClass}</span></div>
              <div className="flex justify-between"><span>S₂:</span><span className="font-mono font-medium">{s2.toFixed(3)}</span></div>
              <div className="flex justify-between"><span>Vₖ:</span><span className="font-mono font-medium">{vk.toFixed(2)} m/s</span></div>
              <div className="flex justify-between"><span>q:</span><span className="font-mono font-medium">{q.toFixed(4)} kN/m²</span></div>
            </div>

            <div className="space-y-1">
              <div className="flex items-center gap-1.5 mb-1">
                <label className="text-xs font-medium text-foreground">Grupo Estatístico (S₃)</label>
                <InfoParamModal type="s3" />
              </div>
              <Select value={s3Group.toString()} onValueChange={(val) => setS3Group(Number(val) as 1 | 2 | 3 | 4 | 5)}>
                <SelectTrigger className="w-full text-xs h-8"><SelectValue placeholder="Grupo" /></SelectTrigger>
                <SelectContent>
                  <SelectItem value="1">Grupo 1 — Risco à vida (Hospitais, quartéis) (S₃=1,11)</SelectItem>
                  <SelectItem value="2">Grupo 2 — Edificações comuns (Hotéis, residências) (S₃=1,06)</SelectItem>
                  <SelectItem value="3">Grupo 3 — Edificações de baixo risco (Comércio, indústrias) (S₃=1,00)</SelectItem>
                  <SelectItem value="4">Grupo 4 — Baixo fator humano (Silos, depósitos) (S₃=0,95)</SelectItem>
                  <SelectItem value="5">Grupo 5 — Estruturas temporárias (S₃=0,83)</SelectItem>
                </SelectContent>
              </Select>
            </div>

            <div className="space-y-2">
              <div className="flex justify-between items-center">
                <label className="text-xs font-medium text-foreground">S₃ customizado</label>
                <span className="text-xs text-muted-foreground font-mono">{s3.toFixed(2)}</span>
              </div>
              <Slider min={0.83} max={1.10} step={0.01} value={[s3]} onValueChange={(vals) => setS3(vals[0])} className="py-1 cursor-pointer" />
            </div>
          </TabsContent>

          <TabsContent value="local" className="space-y-3 min-w-0">
            <div className="space-y-2">
              <div className="flex gap-1.5 items-center">
                <Input
                  placeholder="Buscar cidade ou estação..."
                  value={stationQuery}
                  onChange={(e) => setStationQuery(e.target.value)}
                  className="h-8 text-xs flex-1"
                />
                <InfoV0Modal variant="button" buttonText="Divergências?" />
                <IsopletasModal />
              </div>

              <div className="flex items-center gap-1.5 py-1 overflow-x-auto no-scrollbar">
                <span className="text-[10px] text-muted-foreground mr-1 shrink-0">Filtrar V₀:</span>
                {[null, 30, 35, 40, 45, 50].map((val) => (
                  <button
                    key={val ?? 'todos'}
                    onClick={() => setV0Filter(val)}
                    className={`h-6 px-2.5 text-[10px] rounded-full border transition-all font-mono font-medium shrink-0 ${
                      v0Filter === val
                        ? 'bg-primary text-primary-foreground border-primary shadow-sm'
                        : 'bg-background text-muted-foreground hover:text-foreground border-border hover:bg-muted/50'
                    }`}
                  >
                    {val ? `${val} m/s` : 'Todos'}
                  </button>
                ))}
              </div>

              <div className="max-h-[200px] overflow-y-auto rounded-md border divide-y">
                {filteredStations.map((s) => {
                  const isSelected = locality === s.nome;
                  return (
                    <button
                      key={s.id}
                      onClick={() => {
                        setV0(s.v0);
                        setLocality(s.nome);
                      }}
                      className={`w-full text-left px-2 py-1.5 transition-colors ${
                        isSelected ? 'bg-primary/10 border-l-2 border-primary' : 'hover:bg-muted/60'
                      }`}
                    >
                      <div className="flex justify-between items-center">
                        <span className={`font-medium text-xs truncate max-w-[150px] ${isSelected ? 'text-primary' : ''}`}>{s.nome}</span>
                        <Badge variant={isSelected ? "default" : "outline"} className="font-mono text-[10px] py-0 px-1 font-semibold">V₀ = {s.v0} m/s</Badge>
                      </div>
                      <div className="text-[10px] text-muted-foreground">{s.latitude} · {s.longitude} · {s.altitude} m</div>
                    </button>
                  );
                })}
              </div>
              <p className="text-[10px] leading-tight text-muted-foreground mt-2">
                Selecionar uma estação define a localidade e ajusta V₀. Você pode sobrescrever V₀ manualmente na aba NBR.
              </p>
            </div>
          </TabsContent>

          <TabsContent value="vizinhanca" className="space-y-4 min-w-0">
             <div className="space-y-2">
              <div className="flex justify-between items-center">
                <label className="text-xs font-medium text-foreground">Fator de Vizinhança (Fviz)</label>
                <span className="text-xs text-muted-foreground font-mono">{fviz.toFixed(2)}</span>
              </div>
              <Slider min={0.7} max={1.3} step={0.01} value={[fviz]} onValueChange={(vals) => setFviz(vals[0])} className="py-1 cursor-pointer" />
              <p className="text-[10px] text-muted-foreground">
                Modifica diretamente a pressão dinâmica (q).<br/>
                • <b>&lt; 1.0</b>: Efeito de sombreamento (edifícios ao redor protegem a estrutura).<br/>
                • <b>&gt; 1.0</b>: Efeito funil ou fenda (edifícios ao redor aceleram o vento).
              </p>
             </div>
          </TabsContent>
        </Tabs>
      </DialogContent>
    </Dialog>
  );
}
