// products.js — 产品迭代模块

function formHtml(fields, button) {
  return `<form class="inline-form flex flex-wrap items-end gap-3" onsubmit="${button.handler}(event)">
    ${fields.map((f) => `<label class="grid gap-1 text-sm"><span class="font-bold text-slate-600">${f.label}</span>${f.input}</label>`).join("")}
    <button class="btn btn-primary" type="submit">${button.text}</button>
  </form>`;
}

async function createResource(event, resource) {
  event.preventDefault();
  const form = event.currentTarget;
  const data = Object.fromEntries(new FormData(form).entries());
  data.tenant = state.tenant;
  try {
    const result = await api(`/api/${resource}`, { method: "POST", body: JSON.stringify({ data }) });
    const targetMap = { sales: "sales", proposals: "proposal", operations: "operation", products: "product" };
    const resType = targetMap[resource] || resource;
    const name = data.project_name || data.target_customer || data.customer_or_project_name || data.product_name || "";
    if (result.id && name) logActivity(resType, result.id, "创建了" + name);
    form.reset();
    await load();
  } catch (error) {
    toast("创建失败：" + error.message, "error");
  }
}

window.createSales = (event) => createResource(event, "sales");
window.createProposal = (event) => createResource(event, "proposals");
window.createOperation = async (event) => {
  await createResource(event, "operations");
  if (typeof closeNewProjectModal === "function") closeNewProjectModal();
};

window.openProductDrawer = () => {
  const drawer = document.querySelector("#productDrawer");
  drawer.innerHTML = `<div class="task-drawer-hd">
    <span class="task-drawer-title">新增产品版本</span>
    <button class="task-close" onclick="closeProductDrawer()"><i data-lucide="x"></i></button>
  </div>
  <form class="task-drawer-form" onsubmit="submitProductDrawer(event)">
    <label class="task-field"><span>产品名称</span><input name="product_name" required class="form-ctrl"></label>
    <label class="task-field"><span>版本号</span><input name="version" required class="form-ctrl"></label>
    <label class="task-field"><span>版本目标</span><textarea name="version_goal" rows="2" class="form-ctrl"></textarea></label>
    <label class="task-field"><span>核心功能</span><div class="feature-list" id="newFeatureList"><div class="feature-item"><span class="feature-num">1.</span><input class="form-ctrl" value=""><button class="feature-del" onclick="event.preventDefault();removeNewFeature(this)"><i data-lucide="x" style="width:12px;height:12px"></i></button></div></div><button class="btn btn-ghost btn-sm text-blue-600 mt-1" onclick="event.preventDefault();addNewFeature()"><i data-lucide="plus" style="width:14px;height:14px"></i>添加功能</button></label>
    <label class="task-field"><span>上线日期</span><input name="launch_date" type="date" class="form-ctrl"></label>
    <label class="task-field"><span>状态</span><select name="status" class="form-ctrl"><option>规划中</option><option>开发中</option><option>测试中</option><option>已上线</option><option>已取消</option></select></label>
    <input type="hidden" name="feature_list" id="newFeatureListHidden">
    <div class="flex justify-end gap-2 mt-4 pt-3 border-t border-slate-100">
      <button type="button" class="btn btn-ghost btn-sm" onclick="closeProductDrawer()">取消</button>
      <button type="submit" class="btn btn-primary btn-sm">确认新增</button>
    </div>
  </form>`;
  drawer.classList.add("open");
  if (window.lucide) window.lucide.createIcons();
};

window.closeProductDrawer = () => {
  document.querySelector("#productDrawer").classList.remove("open");
};

window.cycleProductStatus = async (id) => {
  const products = state.data.products || [];
  const product = products.find(x => x.id === id);
  if (!product) return;
  const statuses = ["规划中", "开发中", "测试中", "已上线", "已取消"];
  const current = statuses.indexOf(product.status) >= 0 ? product.status : "规划中";
  const newStatus = statuses[(statuses.indexOf(current) + 1) % statuses.length];
  try {
    await api(`/api/products/${id}`, { method: "PUT", body: JSON.stringify({ data: { status: newStatus } }) });
    product.status = newStatus;
    renderProducts();
  } catch (error) {
    toast("更新失败：" + error.message, "error");
  }
};

window.editProductDate = (event, id) => {
  event.stopPropagation();
  const products = state.data.products || [];
  const product = products.find(x => x.id === id);
  if (!product) return;
  const span = event.currentTarget;
  const td = span.parentElement;
  const currentValue = product.launch_date || "";
  const input = document.createElement("input");
  input.type = "date";
  input.className = "form-ctrl form-ctrl-sm w-full";
  input.value = currentValue;
  input.addEventListener("change", async () => {
    const newValue = input.value;
    try {
      await api(`/api/products/${id}`, { method: "PUT", body: JSON.stringify({ data: { launch_date: newValue } }) });
      product.launch_date = newValue;
      td.innerHTML = `<span class="cursor-pointer hover:text-blue-600" onclick="editProductDate(event, ${id})">${newValue || '—'}</span>`;
    } catch (e) { toast("修改失败：" + e.message, "error"); }
  });
  input.addEventListener("blur", () => {
    td.innerHTML = `<span class="cursor-pointer hover:text-blue-600" onclick="editProductDate(event, ${id})">${currentValue || '—'}</span>`;
  });
  td.innerHTML = "";
  td.appendChild(input);
  input.focus();
};

window.addNewFeature = () => {
  const list = document.querySelector("#newFeatureList");
  if (!list) return;
  const idx = list.children.length;
  const div = document.createElement("div");
  div.className = "feature-item";
  div.innerHTML = `<span class="feature-num">${idx+1}.</span><input class="form-ctrl" value=""><button class="feature-del" onclick="event.preventDefault();removeNewFeature(this)"><i data-lucide="x" style="width:12px;height:12px"></i></button>`;
  list.appendChild(div);
  if (window.lucide) window.lucide.createIcons();
};

window.removeNewFeature = (btn) => {
  const div = btn.closest(".feature-item");
  if (!div) return;
  div.remove();
  const list = document.querySelector("#newFeatureList");
  if (list) list.querySelectorAll(".feature-num").forEach((el, i) => { el.textContent = (i+1) + "."; });
};

window.submitProductDrawer = async (event) => {
  event.preventDefault();
  const form = event.currentTarget;
  const data = Object.fromEntries(new FormData(form).entries());
  const featureInputs = form.querySelectorAll("#newFeatureList input");
  data.feature_list = [...featureInputs].map(el => el.value.trim()).filter(Boolean).join("\n");
  data.platform = "";
  data.tenant = state.tenant;
  try {
    const result = await api("/api/products", { method: "POST", body: JSON.stringify({ data }) });
    form.reset();
    closeProductDrawer();
    if (result.id) logActivity("product", result.id, "创建了产品版本「" + data.product_name + " " + data.version + "」");
    await load();
  } catch (error) {
    toast("创建失败：" + error.message, "error");
  }
};

window.addFeature = (id) => {
  const list = document.querySelector(`#featureList_${id}`);
  if (!list) return;
  const idx = list.children.length;
  const div = document.createElement("div");
  div.className = "feature-item";
  div.innerHTML = `<span class="feature-num">${idx+1}.</span><input class="form-ctrl" value="" onchange="saveFeatureList(${id})"><button class="feature-del" onclick="event.preventDefault();removeFeature(${id},${idx})"><i data-lucide="x" style="width:12px;height:12px"></i></button>`;
  list.appendChild(div);
  if (window.lucide) window.lucide.createIcons();
  saveFeatureList(id);
};

window.removeFeature = (id, idx) => {
  const list = document.querySelector(`#featureList_${id}`);
  if (!list) return;
  const items = list.querySelectorAll(".feature-item");
  if (items[idx]) items[idx].remove();
  list.querySelectorAll(".feature-num").forEach((el, i) => { el.textContent = (i+1) + "."; });
  saveFeatureList(id);
};

window.saveFeatureList = (id) => {
  const list = document.querySelector(`#featureList_${id}`);
  if (!list) return;
  const values = [...list.querySelectorAll("input")].map(el => el.value.trim()).filter(Boolean);
  const data = values.join("\n");
  api(`/api/products/${id}`, { method: "PUT", body: JSON.stringify({ data: { feature_list: data } }) });
  const product = (state.data.products || []).find(x => x.id === id);
  if (product) product.feature_list = data;
};

function renderProducts() {
  const items = state.data.products || [];
  document.querySelector("#products").innerHTML = `
    <div class="grid gap-4">
      <div class="flex justify-end">
        <button class="btn btn-primary btn-sm" onclick="openProductDrawer()"><i data-lucide="plus"></i>新增产品版本</button>
      </div>
      <div class="grid grid-cols-3 gap-4">
        ${items.map((p) => `
          <div class="bg-white rounded-xl border border-slate-200 p-4 cursor-pointer hover:shadow-lg hover:border-blue-200 transition-all" onclick="openDrawer('products', ${p.id})">
            <div class="flex items-start justify-between">
              <h4 class="text-base font-semibold text-slate-800 leading-tight">${esc(p.product_name)}</h4>
              <span class="status-badge status-${esc(p.status)}" onclick="event.stopPropagation(); cycleProductStatus(${p.id})" title="点击切换状态">${esc(p.status) || '规划中'}</span>
            </div>
            <div class="mt-2 flex items-center gap-2 text-xs text-slate-500">
              <span class="font-medium">${esc(p.version)}</span>
              <span>·</span>
              <span class="cursor-pointer hover:text-blue-600 transition-colors" onclick="event.stopPropagation(); editProductDate(event, ${p.id})">${esc(p.launch_date) || '—'}</span>
            </div>
            <div class="mt-3 space-y-1">
              <p class="text-sm text-slate-700 mt-1.5 leading-relaxed">${esc(p.version_goal) || '—'}</p>
              <div class="text-sm text-slate-600 mt-1.5 leading-relaxed whitespace-pre-line">${esc(p.feature_list) || '—'}</div>
            </div>
          </div>
        `).join("")}
      </div>
    </div>
    <aside id="productDrawer" class="task-drawer"></aside>
  `;
}