<template>
  <div class="plan-page">
    <div class="canvas">
      <header class="topbar"><div class="topbar-center"><div class="model-title">{{ modelCenterStore.activeModelName }}</div></div></header>

      <section class="model-stage">
        <ModelPlaceholder />
      </section>

      <section class="module-topbar">
        <div class="field">
          <span class="field-label">计划状态</span>
          <label class="chip chip-status"><input type="checkbox" :checked="statusFilters.all" @change="togglePlanFilter('all', $event.target.checked)" /> 全部</label>
          <label class="chip chip-status chip-red"><input type="checkbox" :checked="statusFilters.not_done" @change="togglePlanFilter('not_done', $event.target.checked)" /> 计划未完成</label>
          <label class="chip chip-status chip-blue"><input type="checkbox" :checked="statusFilters.done" @change="togglePlanFilter('done', $event.target.checked)" /> 计划完成</label>
          <label class="chip chip-status chip-green"><input type="checkbox" :checked="statusFilters.out_of_plan" @change="togglePlanFilter('out_of_plan', $event.target.checked)" /> 计划外完成</label>
        </div>
      </section>

      <aside class="sidepanel" :class="{ 'is-collapsed': sideCollapsed }">
        <header class="sidepanel-header">
          <div class="sidepanel-title">计划｜左侧区</div>
          <button class="iconbtn" type="button" @click="sideCollapsed = !sideCollapsed">{{ sideCollapsed ? "▸" : "▾" }}</button>
        </header>
        <div class="sidepanel-body" v-show="!sideCollapsed">
          <section class="placeholder">
            <div class="placeholder-top">
              <div class="placeholder-title">计划期次：<b>{{ periodId }}</b></div>
              <button class="btn btn-sm" type="button" @click="openPeriodModal">切换期次</button>
            </div>
          </section>

          <div class="tree">
            <div class="tree-item" :class="{ 'is-active': row.leaf && row.id === selectedStructureId }" :style="{ paddingLeft: `${10 + row.level * 14}px` }" v-for="row in visibleTreeRows" :key="row.id" @click="onTreeRowClick(row)">
              <button class="tree-caret" type="button" :class="{ 'is-leaf': row.leaf }" :disabled="row.leaf" @click.stop="toggleTreeExpand(row)">{{ row.leaf ? "•" : row.open ? "▾" : "▸" }}</button>
              <span class="tree-bullet"></span>
              <span class="tree-text">{{ row.name }}</span>
            </div>
          </div>
        </div>
      </aside>

      <section class="bottompanel" :class="{ 'is-collapsed': bottomCollapsed }">
        <header class="bottompanel-header"><div class="tabs"><button class="tab is-on" type="button">计划进度</button></div></header>
        <button class="iconbtn bottompanel-toggle" type="button" @click="bottomCollapsed = !bottomCollapsed">{{ bottomCollapsed ? "▴" : "▾" }}</button>
        <div class="bottompanel-body" v-show="!bottomCollapsed">
          <table class="table">
            <thead>
              <tr>
                <th>序号</th><th>期次</th><th>清单编号</th><th>清单名称</th><th>单位</th><th>单价</th><th>数量</th><th>本期末计划完成数量</th><th>本期末实际完成数量</th>
              </tr>
            </thead>
            <tbody>
              <tr v-for="r in planRows" :key="r.no">
                <td>{{ r.no }}</td><td>{{ r.period }}</td><td>{{ r.code }}</td><td>{{ r.name }}</td><td>{{ r.unit }}</td><td>{{ formatYuan(r.unitPrice) }}</td><td>{{ formatNumber(r.qty,2) }}</td><td>{{ formatNumber(r.planDone,2) }}</td><td>{{ formatNumber(r.actualDone,2) }}</td>
              </tr>
            </tbody>
          </table>
        </div>
      </section>

      <div class="modal-mask" v-show="periodModalOpen" @click.self="periodModalOpen = false">
        <div class="period-modal">
          <div class="period-modal-head"><div class="period-modal-title">切换计划期次</div><button class="iconbtn" type="button" @click="periodModalOpen = false">✕</button></div>
          <div class="period-list">
            <div class="tree-item" :class="{ 'is-active': p === periodDraft }" v-for="p in planPeriods" :key="p" @click="periodDraft = p"><span class="tree-bullet"></span><span class="tree-text">{{ p }}</span></div>
          </div>
          <div class="period-actions"><button class="btn btn-ghost" type="button" @click="periodModalOpen = false">取消</button><button class="btn" type="button" @click="confirmPeriod">确认</button></div>
        </div>
      </div>
    </div>
  </div>
</template>

<script setup>
import { computed, reactive, ref } from "vue";
import ModelPlaceholder from "../../components/model-placeholder/index.vue";
import { useModelCenterStore } from "../../stores/modelCenter.js";

const modelCenterStore = useModelCenterStore();

const structures = [
  { id: "S-001", name: "主桥-0#墩" }, { id: "S-002", name: "主桥-1#墩" }, { id: "S-003", name: "主桥-2#墩" },
  { id: "S-004", name: "引桥-桩基" }, { id: "S-005", name: "引桥-承台" }, { id: "S-006", name: "引桥-盖梁" },
  { id: "S-007", name: "路基-填筑" }, { id: "S-008", name: "路面-基层" }, { id: "S-009", name: "路面-面层" },
];

const elementTree = [
  { id: "E-G-bridge", name: "桥梁工程", children: [
    { id: "E-G-main-bridge", name: "主桥", children: ["S-001", "S-002", "S-003"].map((id) => ({ id, name: structures.find((s) => s.id === id)?.name || id })) },
    { id: "E-G-approach", name: "引桥", children: ["S-004", "S-005", "S-006"].map((id) => ({ id, name: structures.find((s) => s.id === id)?.name || id })) },
  ] },
  { id: "E-G-road", name: "道路工程", children: ["S-007", "S-008", "S-009"].map((id) => ({ id, name: structures.find((s) => s.id === id)?.name || id })) },
];

const planPeriods = ["2025-12", "2026-Q1", "2026-Q2"];
const periodId = ref("2025-12");
const periodModalOpen = ref(false);
const periodDraft = ref(periodId.value);

const sideCollapsed = ref(false);
const bottomCollapsed = ref(false);
const selectedStructureId = ref("S-001");
const expanded = ref(new Set(["E-G-bridge", "E-G-main-bridge", "E-G-approach", "E-G-road"]));
const statusFilters = reactive({ all: true, not_done: false, done: false, out_of_plan: false });

const structureIndex = computed(() => Math.max(0, structures.findIndex((s) => s.id === selectedStructureId.value)));
const selectedStructureName = computed(() => structures.find((s) => s.id === selectedStructureId.value)?.name || "");

const visibleTreeRows = computed(() => {
  const rows = [];
  const walk = (node, level) => {
    const leaf = !node.children || node.children.length === 0;
    const open = expanded.value.has(node.id);
    rows.push({ id: node.id, name: node.name, level, leaf, open });
    if (!leaf && open) node.children.forEach((c) => walk(c, level + 1));
  };
  elementTree.forEach((n) => walk(n, 0));
  return rows;
});

const planRows = computed(() => {
  const idx = structureIndex.value;
  return Array.from({ length: 16 }, (_, i) => {
    const unitPrice = 480 + i * 22;
    const qty = 18 + i * 2.5 + idx * 0.5;
    const planDone = qty * (0.35 + (i % 5) * 0.12);
    const actualDone = qty * (0.22 + (i % 4) * 0.16);
    return {
      no: i + 1,
      period: periodId.value,
      code: `BOQ-${String(4001 + i)}`,
      name: `${["混凝土浇筑", "钢筋制安", "模板工程", "土方开挖", "路基填筑", "防水层"][i % 6]}（${selectedStructureName.value}）`,
      unit: ["m³", "t", "㎡", "m³", "m³", "㎡"][i % 6],
      unitPrice,
      qty,
      planDone,
      actualDone,
    };
  });
});

function formatYuan(value) { return `${Number(value).toFixed(2)}元`; }
function formatNumber(value, digits = 0) { return Number(value).toLocaleString("zh-CN", { minimumFractionDigits: digits, maximumFractionDigits: digits }); }

function applyAllExclusive(key, checked) {
  if (key === "all") {
    statusFilters.all = checked;
    if (checked) {
      statusFilters.not_done = false;
      statusFilters.done = false;
      statusFilters.out_of_plan = false;
    }
    return;
  }
  statusFilters[key] = checked;
  if (checked) statusFilters.all = false;
  if (!statusFilters.not_done && !statusFilters.done && !statusFilters.out_of_plan) statusFilters.all = true;
}

function togglePlanFilter(key, checked) { applyAllExclusive(key, checked); }

function toggleTreeExpand(row) { if (!row.leaf) (expanded.value.has(row.id) ? expanded.value.delete(row.id) : expanded.value.add(row.id)); }
function onTreeRowClick(row) { if (row.leaf) selectedStructureId.value = row.id; else toggleTreeExpand(row); }

function openPeriodModal() { periodDraft.value = periodId.value; periodModalOpen.value = true; }
function confirmPeriod() { periodId.value = periodDraft.value; periodModalOpen.value = false; }
</script>

<style scoped>
.plan-page { min-height: 100vh; font-family: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", sans-serif; }
.canvas { position: relative; min-height: 100vh; overflow: hidden; border-radius: 24px; border: 1px solid rgba(98,191,206,.34); background: radial-gradient(circle at 50% 30%, #bcc9d6 0%, #b2c3d2 60%, #a8b8c9 100%); box-shadow: inset 0 0 0 8px rgba(214,230,241,.55); }
.topbar { position: absolute; inset: 0 0 auto; height: 120px; z-index: 30; }
.topbar-center { position: absolute; left: 50%; transform: translateX(-50%); top: 16px; }
.model-title { font-size: 20px; letter-spacing: 1px; font-weight: 700; color: rgba(255,128,52,.95); text-shadow: 0 2px 10px rgba(0,0,0,.25); }
.model-stage { position: absolute; inset: 0; }

.module-topbar { position: absolute; left: 514px; top: 36px; max-width: calc(100% - 554px); z-index: 99; }
.field { display: flex; align-items: center; gap: 10px; flex-wrap: nowrap; border-radius: 18px; border: 1px solid rgba(83,214,206,.26); background: radial-gradient(420px 120px at 18% 0%, rgba(83,214,206,.22), transparent 70%), linear-gradient(180deg, rgba(18,32,40,.94), rgba(15,25,32,.88)); box-shadow: 0 20px 56px rgba(0,0,0,.28), 0 0 0 1px rgba(83,214,206,.12) inset; padding: 10px 14px; }
.field-label { font-weight: 900; color: rgba(244,252,255,.92); font-size: 14px; white-space: nowrap; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 7px 12px; border-radius: 999px; border: 1px solid rgba(255,255,255,.12); background: rgba(0,0,0,.2); color: rgba(255,255,255,.88); font-weight: 800; font-size: 13px; white-space: nowrap; }
.chip input { width: 13px; height: 13px; margin: 0; accent-color: rgba(64,224,208,.92); }
.chip-status::before { content: ""; width: 10px; height: 10px; border-radius: 3px; border: 1px solid rgba(255,255,255,.2); background: transparent; }
.chip-status.chip-red::before { border-color: rgba(217,54,62,.4); background: rgba(217,54,62,.22); }
.chip-status.chip-blue::before { border-color: rgba(21,108,255,.4); background: rgba(21,108,255,.22); }
.chip-status.chip-green::before { border-color: rgba(47,143,47,.4); background: rgba(47,143,47,.22); }

.sidepanel { position: absolute; left: 16px; top: 175px; width: 320px; bottom: 100px; border-radius: 18px; border: 1px solid rgba(83,214,206,.24); background: radial-gradient(260px 140px at 8% 0%, rgba(63,203,191,.16), transparent 62%) padding-box, linear-gradient(180deg, rgba(20,31,37,.92), rgba(15,23,29,.88)) padding-box; box-shadow: 0 22px 60px rgba(0,0,0,.34), 0 0 0 1px rgba(83,214,206,.12) inset; overflow: hidden; z-index: 25; }
.sidepanel.is-collapsed { width: 64px; }
.sidepanel-header { display: flex; align-items: center; justify-content: space-between; padding: 10px 10px 10px 12px; border-bottom: 1px solid rgba(83,214,206,.16); background: radial-gradient(360px 100px at 10% 0%, rgba(83,214,206,.24), transparent 68%), linear-gradient(180deg, rgba(28,134,122,.84), rgba(15,60,74,.62)); }
.sidepanel-title { font-size: 14px; font-weight: 900; color: rgba(207,247,242,.96); }
.iconbtn { width: 30px; height: 30px; border-radius: 10px; border: 1px solid rgba(255,255,255,.12); background: rgba(255,255,255,.42); color: rgba(11,27,58,.86); font-weight: 900; cursor: pointer; }
.sidepanel-body { height: calc(100% - 52px); overflow: auto; padding: 8px; }

.placeholder { border: 1px solid rgba(255,255,255,.1); background: rgba(0,0,0,.14); border-radius: 14px; padding: 10px; margin-bottom: 10px; }
.placeholder-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.placeholder-title { color: rgba(222,238,244,.9); font-size: 13px; font-weight: 900; }

.btn { appearance: none; border: 1px solid rgba(255,255,255,.1); background: rgba(255,255,255,.08); color: rgba(255,255,255,.88); border-radius: 12px; padding: 8px 10px; cursor: pointer; }
.btn-sm { padding: 6px 10px; border-radius: 999px; font-size: 12px; font-weight: 800; }
.btn-ghost { background: rgba(255,255,255,.04); }

.tree { display: grid; gap: 8px; }
.tree-item { display: grid; grid-template-columns: 20px 10px 1fr; align-items: center; gap: 8px; min-height: 40px; border-radius: 14px; border: 1px solid rgba(154,186,198,.22); background: linear-gradient(180deg, rgba(44,58,68,.58), rgba(37,49,58,.54)); cursor: pointer; }
.tree-item:hover { border-color: rgba(83,214,206,.32); background: linear-gradient(180deg, rgba(51,67,78,.66), rgba(43,57,67,.62)); }
.tree-item.is-active { border-color: rgba(132,188,255,.3); background: linear-gradient(180deg, rgba(112,146,198,.34), rgba(95,128,180,.28)); }
.tree-caret { border: 0; background: transparent; color: rgba(203,230,236,.88); cursor: pointer; font-size: 14px; }
.tree-caret.is-leaf { cursor: default; }
.tree-bullet { width: 10px; height: 10px; border-radius: 50%; background: rgba(83,214,206,.85); }
.tree-text { font-size: 13px; font-weight: 800; color: rgba(222,238,244,.9); }

.bottompanel { position: absolute; left: 370px; right: 16px; bottom: 100px; height: 390px; border-radius: 18px; border: 1px solid rgba(83,214,206,.24); background: radial-gradient(420px 180px at 14% 0%, rgba(83,214,206,.2), transparent 66%) padding-box, radial-gradient(520px 220px at 82% 0%, rgba(40,156,228,.14), transparent 70%) padding-box, linear-gradient(180deg, rgba(18,33,40,.94), rgba(14,24,31,.9)) padding-box; box-shadow: 0 24px 70px rgba(0,0,0,.36), 0 0 0 1px rgba(83,214,206,.14) inset; overflow: hidden; z-index: 26; }
.bottompanel-header { padding: 12px 52px 12px 12px; border-bottom: 1px solid rgba(83,214,206,.28); background: radial-gradient(380px 120px at 18% 0%, rgba(83,214,206,.28), transparent 70%), linear-gradient(180deg, rgba(25,137,124,.86), rgba(16,66,82,.64)); }
.bottompanel-toggle { position: absolute; right: 12px; top: 12px; }
.tabs { display: flex; gap: 10px; }
.tab { border: 1px solid rgba(255,255,255,.12); background: rgba(255,255,255,.08); color: rgba(214,235,241,.9); border-radius: 999px; padding: 8px 16px; cursor: pointer; font-weight: 900; font-size: 12px; }
.tab.is-on { border-color: rgba(83,214,206,.32); background: rgba(83,214,206,.24); }
.bottompanel.is-collapsed { height: 70px; }
.bottompanel-body { padding: 0 12px 12px; overflow: auto; height: calc(100% - 66px); }

.table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 14px; }
.table th, .table td { text-align: left; padding: 12px 14px; border-bottom: 1px solid rgba(178,206,216,.16); }
.table th { color: rgba(219,240,246,.86); font-weight: 900; background: linear-gradient(90deg, rgba(12,38,52,.92), rgba(16,47,61,.86)); position: sticky; top: 0; z-index: 2; }
.table td { color: rgba(222,238,244,.86); background: linear-gradient(90deg, rgba(37,51,61,.42), rgba(31,45,54,.36)); }
.table tbody tr:hover td { background: linear-gradient(90deg, rgba(69,102,130,.36), rgba(56,86,113,.32)); }

.modal-mask { position: absolute; inset: 0; z-index: 90; display: grid; place-items: center; background: rgba(13,36,74,.08); backdrop-filter: blur(3px); }
.period-modal { width: min(520px, calc(100% - 32px)); border-radius: 18px; border: 1px solid rgba(83,214,206,.24); background: radial-gradient(260px 160px at 18% 0%, rgba(83,214,206,.14), transparent 62%) padding-box, linear-gradient(180deg, rgba(18,26,31,.94), rgba(14,20,25,.86)) padding-box; box-shadow: 0 30px 80px rgba(0,0,0,.3); padding: 14px; }
.period-modal-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.period-modal-title { font-weight: 900; color: rgba(255,255,255,.9); font-size: 14px; }
.period-list { margin-top: 12px; border-top: 1px solid rgba(83,214,206,.2); padding-top: 12px; display: grid; gap: 8px; }
.period-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 12px; }

@media (max-width: 1300px) {
  .module-topbar { left: 24px; right: 24px; top: 108px; max-width: none; }
  .field { flex-wrap: wrap; }
  .sidepanel { width: 280px; }
  .bottompanel { left: 330px; }
}
</style>
