import { useEffect, useState } from 'react';
import type { FormEvent } from 'react';
import { Link, useParams } from 'react-router';
import { Alert, LoadingBlock, errorMessage } from '../components/Feedback';
import { addActCompanyResponse, actCompanyResponseContentUrl, getActAdministration, setActResponseDeadline } from '../lib/api';
import type { ActAdministrationDetail } from '../lib/api';
import { formatDate } from '../lib/format';

export function ActAdministrationDetailPage(){
 const {actId=''}=useParams(); const [data,setData]=useState<ActAdministrationDetail|null>(null); const [error,setError]=useState(''); const [busy,setBusy]=useState(false); const [due,setDue]=useState(''); const [reason,setReason]=useState('Plazo administrativo otorgado a la empresa'); const [received,setReceived]=useState(new Date().toISOString().slice(0,10)); const [details,setDetails]=useState(''); const [commitment,setCommitment]=useState(''); const [file,setFile]=useState<File|undefined>();
 const load=()=>getActAdministration(actId).then(setData).catch(e=>setError(errorMessage(e))); useEffect(()=>{void load()},[actId]);
 const deadline=async(e:FormEvent)=>{e.preventDefault();setBusy(true);setError('');try{await setActResponseDeadline(actId,{responseDueOn:due,reason});setDue('');await load()}catch(err){setError(errorMessage(err))}finally{setBusy(false)}};
 const response=async(e:FormEvent)=>{e.preventDefault();setBusy(true);setError('');try{await addActCompanyResponse(actId,{receivedOn:received,details:details||undefined,committedCorrectionOn:commitment||undefined,file});setDetails('');setCommitment('');setFile(undefined);await load()}catch(err){setError(errorMessage(err))}finally{setBusy(false)}};
 if(!data&&!error)return <LoadingBlock label="Cargando expediente administrativo…"/>;
 return <section>{error&&<Alert>{error}</Alert>}{data&&<><div className="page-heading"><div><span className="eyebrow">EXPEDIENTE ADMINISTRATIVO</span><h1>{data.act.actCode}</h1><p>{data.act.areaName??'Área sin asignar'} · {data.act.companyName??'Empresa sin asignar'} · {data.act.openFindingCount} hallazgos abiertos</p></div><Link className="button secondary" to={`/inspecciones/actas/${data.act.actId}`}>Ver Acta</Link></div>
 <div className="detail-grid"><div className="card"><h2>Plazo de respuesta</h2><p>El plazo aplica al conjunto completo de hallazgos del Acta.</p><form className="form-grid" onSubmit={deadline}><label><span>Vencimiento *</span><input type="date" required value={due} onChange={e=>setDue(e.target.value)}/></label><label className="full"><span>Motivo *</span><textarea required minLength={3} value={reason} onChange={e=>setReason(e.target.value)}/></label><button className="button primary" disabled={busy}>Registrar nuevo plazo</button></form>{data.deadlines.length>0&&<div className="stack-list">{data.deadlines.map(d=><div key={d.id}><strong>{formatDate(d.responseDueOn)}</strong><small>{d.reason}</small></div>)}</div>}</div>
 <div className="card"><h2>Respuesta de la empresa</h2><form className="form-grid" onSubmit={response}><label><span>Recibida el *</span><input type="date" required value={received} onChange={e=>setReceived(e.target.value)}/></label><label><span>Fecha comprometida</span><input type="date" value={commitment} onChange={e=>setCommitment(e.target.value)}/></label><label className="full"><span>Detalle</span><textarea value={details} onChange={e=>setDetails(e.target.value)} placeholder="Resumen de la presentación de la empresa"/></label><label className="full"><span>PDF presentado</span><input type="file" accept="application/pdf,.pdf" onChange={e=>setFile(e.target.files?.[0])}/></label><button className="button primary" disabled={busy}>Registrar respuesta</button></form>{data.responses.length>0&&<div className="stack-list">{data.responses.map(r=><div key={r.id}><strong>{formatDate(r.receivedOn)}</strong><small>{r.details??'Sin detalle'}{r.committedCorrectionOn?` · compromiso ${formatDate(r.committedCorrectionOn)}`:''}</small>{r.originalName&&<a className="text-link" href={actCompanyResponseContentUrl(r.id)} target="_blank" rel="noreferrer">Abrir PDF</a>}</div>)}</div>}</div></div>
 <div className="card"><h2>Hallazgos del Acta</h2><div className="table-scroll"><table><thead><tr><th>Código</th><th>Hallazgo</th><th>Estado</th><th>Próximo control</th></tr></thead><tbody>{data.findings.map(f=><tr key={f.id}><td><Link className="text-link" to={`/hallazgos/${f.id}`}>{f.code}</Link></td><td>{f.title}</td><td>{f.status}</td><td>{f.nextControlOn?formatDate(f.nextControlOn):'Sin programar'}</td></tr>)}</tbody></table></div></div></>}</section>;
}