'use strict';
pageInfo.family=['家谱','记下亲人的故事，让世代之间有迹可循。'];
pageInfo.users=['账号与关系','每个人有自己的账号，权限与亲属关系分别设置。'];
let family={people:[],links:[],revision:0,canEdit:false}, users=[], focusPerson='',familyGeneration=0;
const relationships=['本人','配偶','哥哥','弟弟','姐姐','妹妹','爸爸','妈妈','爷爷','奶奶','姥爷','姥姥','伯伯','叔叔','姑姑','舅舅','姨妈','儿子','女儿','孙子','孙女','外孙','外孙女','曾孙','曾孙女','玄孙','玄孙女','祖先','后裔','亲友','同事'];
$('#relationship-choices').innerHTML=relationships.map(r=>`<option value="${esc(r)}"></option>`).join('');
function clearFamilyState(){familyGeneration++;family={people:[],links:[],revision:0,canEdit:false};users=[];focusPerson='';$('#family-reference').replaceChildren();delete $('#family-reference').dataset.initialized;$('#family-search').value='';$('#family-archived').checked=false;}
function personName(id){return family.people.find(p=>p.id===id)?.name||'未关联';}
function peopleOptions(blank=true){return (blank?'<option value="">尚未关联</option>':'')+family.people.map(p=>`<option value="${p.id}">${esc(p.name+(p.archived?'（已归档）':''))}</option>`).join('');}
function fillForm(form,data){form.reset();form.querySelector('.form-error').textContent='';for(const [k,v]of Object.entries(data)){const e=form.elements[k];if(!e)continue;if(e.type==='checkbox')e.checked=!!v;else e.value=v??'';}}
async function loadFamily(){
  const generation=++familyGeneration;
  try{const result=await api('/api/family');if(!loggedIn||generation!==familyGeneration)return;family=result;
    if(!family.people.some(p=>p.id===focusPerson))focusPerson=family.selfId||family.people.find(p=>!p.archived)?.id||'';
    setOptions($('#family-reference'),peopleOptions(false));if(!$('#family-reference').value&&family.selfId)$('#family-reference').value=family.selfId;
    if(!$('#family-reference').dataset.initialized&&family.selfId){$('#family-reference').value=family.selfId;$('#family-reference').dataset.initialized='true';}
    $('#family-error').textContent='';renderFamily();
  }catch(e){$('#family-error').textContent=e.message;}
}
function relationText(e){return personName(e.fromId)+(e.kind==='parent'?' → 子女：':' ↔ 配偶：')+personName(e.toId)+(e.active?'':'（已停用）');}
function renderFamily(){
  const reference=$('#family-reference').value,term=$('#family-search').value.trim().toLowerCase();
  const people=family.people.filter(p=>($('#family-archived').checked||!p.archived)&&[p.name,p.alias,p.birthplace].join(' ').toLowerCase().includes(term));
  $('#family-count').textContent=family.people.filter(p=>!p.archived).length+' 位人物 · '+family.links.filter(e=>e.active).length+' 条关系';
  $('#new-person').hidden=!family.canEdit;
  $('#family-people').innerHTML=people.map(p=>`<button class="person-card ${p.id===focusPerson?'selected':''}" data-person="${p.id}"><strong>${esc(p.name)}</strong><span>${esc(ZhaoKinship.describe(family.people,family.links,reference,p.id))}</span><small>${esc(p.birthDate||'出生待考')}${p.archived?' · 已归档':''}</small></button>`).join('')||empty('从一个人物开始','可先录入自己，再逐步补齐父母、祖先和后辈。');
  const p=family.people.find(p=>p.id===focusPerson);
  if(!p){$('#family-detail').innerHTML='<h3>人物档案</h3><p class="description">选择或录入一位人物，查看关系与家谱。</p>';$('#family-tree').replaceChildren();return;}
  const edges=family.links.filter(e=>e.fromId===p.id||e.toId===p.id);
  $('#family-detail').innerHTML=`<div class="section-head"><div><span class="eyebrow">人物档案</span><h2>${esc(p.name)}</h2></div>${family.canEdit?`<button data-edit-person="${p.id}" class="quiet">编辑人物</button>`:''}</div><p class="description">相对于 ${esc(personName(reference))}：${esc(ZhaoKinship.describe(family.people,family.links,reference,p.id))}</p><dl>${[['别名',p.alias],['性别',{male:'男',female:'女',unknown:'待确认'}[p.gender]],['在世情况',{alive:'在世',deceased:'已故',unknown:'待确认'}[p.lifeStatus]],['出生日期',p.birthDate],['逝世日期',p.deathDate],['籍贯 / 出生地',p.birthplace]].map(([k,v])=>`<div><dt>${k}</dt><dd>${esc(v||'待补充')}</dd></div>`).join('')}</dl><h3>生平与记载</h3><p class="family-prose">${esc(p.biography||'尚未记录生平')}</p><p class="description family-prose">${esc(p.note||'')}</p><div class="section-head"><h3>亲属关系</h3>${family.canEdit?'<button id="add-relation" class="quiet">＋ 连接亲属</button>':''}</div>${edges.map(e=>`<div class="family-link"><span>${esc(relationText(e))}<small>${esc(({biological:'亲生',adoptive:'收养',step:'继亲',unspecified:''}[e.lineage]||'')+' '+(e.note||''))}</small></span>${family.canEdit?`<button class="quiet" data-edit-relation="${e.id}">编辑</button>`:''}</div>`).join('')||'<p class="description">尚未连接亲属。</p>'}`;
  renderFamilyTree();
}
function renderFamilyTree(){
  const root=family.people.find(p=>p.id===focusPerson);if(!root)return;
  const depth=Number($('#family-depth').value),edges=family.links.filter(e=>e.active),people=new Map(family.people.map(p=>[p.id,p]));let count=0;
  function branch(id,d,direction,path){
    if(++count>300)return '<li>更多分支请切换人物查看</li>';
    const p=people.get(id);if(!p)return '';
    const node=`<button class="quiet" data-person="${id}">${esc(p.name)}${p.archived?' · 已归档':''}</button>`;
    if(path.has(id))return `<li>${node}（重复分支）</li>`;
    const seen=new Set([...path,id]);
    const next=edges.filter(e=>e.kind==='parent'&&(direction==='up'?e.toId:e.fromId)===id).map(e=>direction==='up'?e.fromId:e.toId);
    return `<li>${node}${d>0&&next.length?'<ul>'+next.map(child=>branch(child,d-1,direction,seen)).join('')+'</ul>':next.length?' <small>还有 '+next.length+' 位，点击此人物继续</small>':''}</li>`;
  }
  const spouseIds=edges.filter(e=>e.kind==='spouse'&&(e.fromId===root.id||e.toId===root.id)).map(e=>e.fromId===root.id?e.toId:e.fromId);
  $('#family-tree').innerHTML=`<div><h3>上溯祖先</h3><ul>${branch(root.id,depth,'up',new Set())}</ul></div><div><h3>下续后裔</h3><ul>${branch(root.id,depth,'down',new Set())}</ul></div><div class="family-spouses"><h3>配偶</h3>${spouseIds.map(id=>`<button class="quiet" data-person="${id}">${esc(personName(id))}</button>`).join(' ')||'<p class="description">尚未记录</p>'}</div>`;
}
function openPerson(id){if(!family.canEdit)return;const p=family.people.find(p=>p.id===id)||{};fillForm($('#person-form'),{...p,revision:family.revision});$('#person-dialog').showModal();}
function openRelation(id){if(!family.canEdit)return;if(family.people.length<2){toast('请先录入另一位亲属，再连接关系');return;}const f=$('#relation-form');f.elements.fromId.innerHTML=peopleOptions(false);f.elements.toId.innerHTML=peopleOptions(false);const edge=family.links.find(e=>e.id===id);fillForm(f,{...(edge||{fromId:focusPerson,active:true}),revision:family.revision});if(!edge)f.elements.toId.value=family.people.find(p=>p.id!==focusPerson)?.id||'';$('#relation-dialog').showModal();}
for(const [name,path]of [['person','person'],['relation','link']]){
  $('#'+name+'-form').addEventListener('submit',async e=>{
    e.preventDefault();const f=e.currentTarget,b=f.querySelector('[type=submit]');b.disabled=true;
    try{const d=formValues(f);d.revision=Number(d.revision);if(name==='person')d.archived=f.elements.archived.checked;else d.active=f.elements.active.checked;
      const result=await api('/api/family/'+path,d);if(name==='person')focusPerson=result.item.id;f.closest('dialog').close();await loadFamily();toast('家谱已保存');
    }catch(err){f.querySelector('.form-error').textContent=err.message;}finally{b.disabled=false;}
  });
}
async function loadUsers(){
  if(!isAdmin())return;const id=currentUser.id;
  try{const [u,f]=await Promise.all([api('/api/users'),api('/api/family')]);if(!loggedIn||currentUser?.id!==id)return;users=u.users;family=f;
    $('#user-list').innerHTML=`<div class="table-wrap"><table class="device-table"><thead><tr><th>账号</th><th>角色 / 状态</th><th>人物关系</th><th>家谱权限</th><th>摄像头空间</th><th></th></tr></thead><tbody>${users.map(u=>`<tr><td>${esc(u.name)}<small>${esc(u.username)}</small></td><td>${u.role==='admin'?'管理员':'个人账号'}${u.disabled?' · 已停用':''}</td><td>${u.relationship==='本人'&&u.relatedToId===u.id?'本人':u.relationship?esc(u.name+' 是 '+(users.find(x=>x.id===u.relatedToId)?.name||'（参照待指定）')+' 的 '+u.relationship):'未设置'}<small>家谱：${esc(personName(u.personId))}</small></td><td>${u.role==='admin'?'管理':({none:'不可访问',read:'查看',edit:'录入和维护'}[u.familyAccess])}</td><td>${u.role==='admin'?'全部空间':esc(u.siteIds.map(siteName).join('、')||'未授权')}</td><td><button class="quiet" data-edit-user="${u.id}">编辑账号</button></td></tr>`).join('')}</tbody></table></div>`;
  }catch(e){toast(e.message);}
}
function openUser(id){
  if(!isAdmin())return;const f=$('#user-form'),u=users.find(u=>u.id===id)||{};
  f.elements.personId.innerHTML=peopleOptions();f.elements.relatedToId.innerHTML='<option value="">尚未指定</option>'+users.map(u=>`<option value="${u.id}">${esc(u.name+' / '+u.username)}</option>`).join('');
  fillForm(f,u);f.elements.password.required=!u.id;
  $('#user-sites').innerHTML=state.sites.map(s=>`<label class="check"><input type="checkbox" name="siteIds" value="${s.id}" ${(u.siteIds||[]).includes(s.id)?'checked':''}>${esc(s.name)}</label>`).join('');$('#user-dialog').showModal();
}
$('#user-form').addEventListener('submit',async e=>{e.preventDefault();const f=e.currentTarget,b=f.querySelector('[type=submit]');b.disabled=true;try{const d=formValues(f);d.siteIds=[...f.querySelectorAll('[name=siteIds]:checked')].map(el=>el.value);d.disabled=f.elements.disabled.checked;await api('/api/users',d);f.closest('dialog').close();await auth();if(loggedIn)await loadUsers();toast('账号已保存');}catch(err){f.querySelector('.form-error').textContent=err.message;}finally{b.disabled=false;}});
$('#new-person').onclick=()=>openPerson();$('#new-user').onclick=()=>openUser();$('#family-reload').onclick=loadFamily;
$('#family-reference').onchange=renderFamily;$('#family-search').oninput=renderFamily;$('#family-archived').onchange=renderFamily;$('#family-depth').onchange=renderFamilyTree;
$('#family-export').onclick=async()=>{try{const data=await api('/api/family');const blob=new Blob([JSON.stringify({format:'zhaofu-family',version:1,exportedAt:new Date().toISOString(),people:data.people,links:data.links},null,2)],{type:'application/json'});const link=document.createElement('a'),href=URL.createObjectURL(blob);link.href=href;link.download='zhaofu-family-'+new Date().toISOString().slice(0,10)+'.json';link.click();setTimeout(()=>URL.revokeObjectURL(href),60000);}catch(e){toast(e.message);}};
document.addEventListener('click',e=>{const b=e.target.closest('button');if(!b)return;if(b.dataset.person){focusPerson=b.dataset.person;renderFamily();}if(b.dataset.editPerson)openPerson(b.dataset.editPerson);if(b.id==='add-relation')openRelation();if(b.dataset.editRelation)openRelation(b.dataset.editRelation);if(b.dataset.editUser)openUser(b.dataset.editUser);});