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<template>
  <el-dialog :title="modalOptions.title"
             v-model="visible"
             @close="close">
    <el-form :model="form">
      <el-row :gutter="20">
        <el-col :span="12">
          <el-form-item label="采购合同号:">
            <el-tag size="large">{{ form.purchaseContractNumber }}</el-tag>
          </el-form-item>
        </el-col>
        <el-col :span="12">
          <el-form-item label="销售合同号:">
            <el-text>{{ form.salesContractNo }}</el-text>
          </el-form-item>
        </el-col>
        <el-col :span="12">
          <el-form-item label="含税单价(元):">
            <el-text type="primary">{{ form.taxInclusiveUnitPrice }}</el-text>
          </el-form-item>
        </el-col>
        <el-col :span="12">
          <el-form-item label="创建时间:">
            <el-text>{{ form.createdAt }}</el-text>
          </el-form-item>
        </el-col>
        <el-col :span="12">
          <el-form-item label="发票号:">
            <el-input disabled
                      v-model="form.invoiceNumber" />
          </el-form-item>
        </el-col>
        <el-col :span="12">
          <el-form-item label="来票数:">
            <el-input-number :step="0.1"
                             :min="0"
                             :max="maxTicketsNum"
                             style="width: 100%"
                             v-model="form.ticketsNum"
                             @change="inputTicketsNum"
                             :precision="2" />
            <div style="font-size: 12px; color: #909399; margin-top: 4px;">
              可填写数量:{{ maxTicketsNum }}
            </div>
          </el-form-item>
        </el-col>
        <el-col :span="12">
          <el-form-item label="本次来票金额(元):">
            <el-input-number :step="0.1"
                             :min="0"
                             style="width: 100%"
                             v-model="form.ticketsAmount"
                             @change="inputTicketsAmount"
                             :precision="2" />
          </el-form-item>
        </el-col>
        <el-col :span="12">
          <el-form-item label="未来票数:">
            <el-text type="success">{{ form.futureTickets }}</el-text>
          </el-form-item>
        </el-col>
      </el-row>
    </el-form>
    <template #footer>
      <el-button type="primary"
                 :loading="loading"
                 @click="sendForm">
        {{ modalOptions.confirmText }}
      </el-button>
      <el-button @click="closeModal">{{ modalOptions.cancelText }}</el-button>
    </template>
  </el-dialog>
</template>
 
<script setup>
import { useModal } from "@/hooks/useModal";
import useFormData from "@/hooks/useFormData";
import { updateRegistration, getProductRecordById } from "@/api/procurementManagement/procurementInvoiceLedger";
import { ElMessage } from "element-plus";
import { getCurrentInstance, ref, nextTick, computed } from "vue";
 
defineOptions({
  name: "来票台账编辑",
});
const emits = defineEmits(["success"]);
 
const saleLedgerProjectId = ref("");
const temFutureTickets = ref(0);
const originalTicketsNum = ref(0); // 原始已来票数
const { proxy } = getCurrentInstance();
 
// 计算最大可填写数量 = 原始已来票数 + 未来票数
const maxTicketsNum = computed(() => {
  return Number(originalTicketsNum.value) + Number(temFutureTickets.value);
});
 
const {
  id,
  visible,
  loading,
  openModal,
  modalOptions,
  handleConfirm,
  closeModal,
} = useModal({ title: "来票台账" });
 
const { form, resetForm } = useFormData({
  id: undefined,
  purchaseContractNumber: undefined, // 采购合同号
  salesContractNo: undefined, // 销售合同号
  createdAt: undefined, // 创建时间
  invoiceNumber: undefined, // 发票号
  ticketsNum: undefined, // 来票数
  ticketsAmount: undefined, // 来票金额
  taxInclusiveUnitPrice: undefined, // 含税单价
  futureTickets: undefined, // 未来票数
});
 
const load = async (id, purchaseLedgerId, productModelId) => {
  const { code, data } = await getProductRecordById({
    id: id,
    purchaseLedgerId: purchaseLedgerId,
    productModelId: productModelId,
  });
  if (code === 200) {
    form.id = data.id;
    form.purchaseContractNumber = data.purchaseContractNumber;
    form.salesContractNo = data.salesContractNo;
    form.createdAt = data.createdAt;
    form.invoiceNumber = data.invoiceNumber;
    form.ticketsNum = data.ticketsNum;
    form.ticketsAmount = data.ticketsAmount.toFixed(2);
    form.taxInclusiveUnitPrice = data.taxInclusiveUnitPrice;
    form.futureTickets = data.futureTickets;
    temFutureTickets.value = data.futureTickets;
    // 保存原始已来票数
    originalTicketsNum.value = data.ticketsNum || 0;
  }
};
 
const inputTicketsNum = val => {
  // 确保含税单价存在且不为零
  if (!form.taxInclusiveUnitPrice || Number(form.taxInclusiveUnitPrice) === 0) {
    proxy.$modal.msgWarning("含税单价不能为零或未定义");
    return;
  }
  
  // 检查来票数不能大于(原始已来票数 + 未来票数)
  const maxNum = maxTicketsNum.value;
  if (Number(form.ticketsNum) > maxNum) {
    proxy.$modal.msgWarning(`来票数不能大于${maxNum}(已来票数${originalTicketsNum.value} + 未来票数${temFutureTickets.value})`);
    form.ticketsNum = maxNum;
    return;
  }
  
  // 计算本次新增的来票数(当前来票数 - 原始已来票数)
  const newTicketsNum = Number(form.ticketsNum) - Number(originalTicketsNum.value);
  
  // 如果新增的来票数大于未来票数,则限制
  if (newTicketsNum > Number(temFutureTickets.value)) {
    proxy.$modal.msgWarning("本次新增来票数不得大于未来票数");
    form.ticketsNum = Number(originalTicketsNum.value) + Number(temFutureTickets.value);
    return;
  }
 
  // 确保所有数值都转换为数字类型进行计算
  const ticketsAmount =
    Number(form.ticketsNum) * Number(form.taxInclusiveUnitPrice);
  const futureTickets =
    Number(temFutureTickets.value) - newTicketsNum;
  form.futureTickets = Number(futureTickets.toFixed(2));
  form.ticketsAmount = Number(ticketsAmount.toFixed(2));
};
 
const inputTicketsAmount = val => {
  // 确保含税单价存在且不为零
  if (!form.taxInclusiveUnitPrice || Number(form.taxInclusiveUnitPrice) === 0) {
    proxy.$modal.msgWarning("含税单价不能为零或未定义");
    return;
  }
 
  // 计算最大可填写金额 = (原始已来票数 + 未来票数)* 含税单价
  const maxAmount = maxTicketsNum.value * Number(form.taxInclusiveUnitPrice);
  
  if (Number(val) > maxAmount) {
    proxy.$modal.msgWarning(`本次来票金额不得大于${maxAmount.toFixed(2)}元`);
    form.ticketsAmount = maxAmount.toFixed(2);
    form.ticketsNum = maxTicketsNum.value;
    return;
  }
 
  // 确保所有数值都转换为数字类型进行计算
  const ticketsNum = Number(val) / Number(form.taxInclusiveUnitPrice);
  
  // 检查来票数不能大于最大值
  if (ticketsNum > maxTicketsNum.value) {
    proxy.$modal.msgWarning(`来票数不能大于${maxTicketsNum.value}`);
    form.ticketsNum = maxTicketsNum.value;
    form.ticketsAmount = maxAmount.toFixed(2);
    return;
  }
  
  form.ticketsNum = Number(ticketsNum.toFixed(2));
  
  // 计算未来票数
  const newTicketsNum = form.ticketsNum - originalTicketsNum.value;
  const futureTickets = Number(temFutureTickets.value) - newTicketsNum;
  form.futureTickets = Number(futureTickets.toFixed(2));
};
 
const open = async row => {
  openModal(row.id);
  saleLedgerProjectId.value = row.saleLedgerProjectId;
  await nextTick();
  load(row.id, row.purchaseLedgerId, row.productModelId);
};
 
const close = () => {
  resetForm();
  closeModal();
};
 
const sendForm = async () => {
  form.saleLedgerProjectId = saleLedgerProjectId.value;
  const { code } = await updateRegistration(form);
  if (code === 200) {
    emits("success");
    ElMessage({ message: "操作成功", type: "success" });
    close();
  }
};
 
defineExpose({
  open,
});
</script>
 
<style lang="scss" scoped></style>