<template>
  <view class="edit-container">
    <scroll-view scroll-y class="scroll-content">
      <view class="form-wrapper">
        <uv-form :model="form" ref="formRef" labelWidth="100px" labelPosition="top" :borderBottom="false">
          <!-- 1. 到款信息 (Readonly) -->
          <CommonSection title="到款信息" :isFirst="true">
            <view class="info-list">
              <CommonInfoRow label="项目名称" @click="openProjectDialog">
                <view style="display: flex; align-items: center; justify-content: flex-end;">
                  <text v-if="form.projectName" :style="{ color: isContinue ? '#666' : '#333', fontSize: '28rpx' }">{{ form.projectName }}</text>
                  <text v-else style="color: #c0c4cc; font-size: 28rpx;">请选择项目名称</text>
                  <uv-icon v-if="!isContinue" name="arrow-right" size="16" color="#c0c4cc" style="margin-left: 10rpx;"></uv-icon>
                </view>
              </CommonInfoRow>
              <CommonInfoRow label="项目负责人" v-if="form.projectLeaderName" :value="form.projectLeaderName" />
              <CommonInfoRow label="科室" v-if="form.deptName" :value="form.deptName" />
              <CommonInfoRow label="到款金额(元)" :value="formatAmount(form.amount)" isAmount />
              <CommonInfoRow label="管理费(元)" :value="formatAmount(form.manageAmount)" isAmount />
              <CommonInfoRow label="税费(元)" :value="formatAmount(form.taxAmount)" isAmount />
              <CommonInfoRow label="待认领金额(元)" :value="formatAmount(form.allotAmount)" isAmount />
              <CommonInfoRow label="到款日期" :value="form.date ? formatDate(new Date(form.date), 'YYYY-MM-DD') : '-'" />
              <CommonInfoRow label="到款类型" :value="getDictLabel(paymentReceivedTypeOptions, form.type)" />
              <CommonInfoRow label="打款单位" :value="form.unit || '-'" />
            </view>
          </CommonSection>

          <!-- 2. 认领经费 -->
          <CommonSection title="认领经费">
            <view class="edit-form-list">
              <template v-if="detail && detail.length > 0">
                <CommonInfoRow 
                  v-for="(item, index) in detail" 
                  :key="item.id || index" 
                  :label="item.subjName"
                >
                  <uv-input 
                    v-model="item.amount" 
                    type="digit" 
                    placeholder="请输入金额" 
                    border="none" 
                    inputAlign="right" 
                    color="#ff4d4f"
                    customStyle="font-weight: 600; font-family: 'DIN-Medium', sans-serif;"
                  >
                    <template v-slot:suffix>
                      <text style="margin-left: 10rpx; font-size: 28rpx; color: #333; font-weight: normal;">元</text>
                    </template>
                  </uv-input>
                </CommonInfoRow>
              </template>
              <template v-else>
                 <view style="padding: 20rpx; color: #999; text-align: center; font-size: 26rpx;">
                   暂无费用列表信息
                 </view>
              </template>
            </view>
          </CommonSection>
        </uv-form>
      </view>
    </scroll-view>
    
    <!-- 提交按钮 -->
    <view class="bottom-bar">
      <uv-button type="primary" text="提交认领" @click="submitForm" :loading="loading" customStyle="border-radius: 40rpx;"></uv-button>
    </view>
    <uv-toast ref="toastRef"></uv-toast>

    <!-- 选择项目弹窗 -->
    <SelectProject ref="selectProjectRef" @select="onProjectSelected" />
  </view>
</template>

<script lang="ts" setup>
import { ref, reactive, computed } from 'vue';
import { onLoad } from '@dcloudio/uni-app';
import { useSystemApi } from '@/api/system/index';
import { useFundApi, useClaimApi } from '@/api/fund/index';
import { formatDate } from '@/utils/date';
import { onRouterPush } from '@/utils/router';
import SelectProject from '@/components/SelectProject/index.vue';
import CommonSection from '@/components/ui/CommonSection.vue';
import CommonInfoRow from '@/components/ui/CommonInfoRow.vue';

const systemApi = useSystemApi();
const fundApi = useFundApi();
const claimApi = useClaimApi();

const toastRef = ref();
const selectProjectRef = ref();
const loading = ref(false);
const paymentReceivedTypeOptions = ref<any[]>([]);
const isContinue = ref(false);

const detail = ref<any[]>([]);

const form = reactive({
  id: 0,
  allotAmount: null,
  amount: 0, 
  manageAmount: 0,
  taxAmount: 0,
  projectId: 0,
  projectName: '',
  projectLeaderName: '',
  deptName: '',
  projectType: '',
  startDate: '',
  endDate: '',
  createdName: '',
  createdTime: '',
  date: '',
  remark: '',
  serialNo: '',
  type: '',
  unit: '',
  status: '',
  externalAmount: 0,
  internalAmount: 0
});

const formatAmount = (cellValue: any) => {
  if (cellValue === null || cellValue === undefined || cellValue === '') return '0.00';
  const num = Number(cellValue);
  return isNaN(num) ? '0.00' : num.toFixed(2).replace(/\B(?=(\d{3})+(?!\d))/g, ',');
};

const getDictLabel = (options: any[], value: string) => {
  const find = options.find((item) => item.dictValue === value);
  return find ? find.dictLabel : value || '-';
};

const getDict = async () => {
  try {
    const resTypes: any = await systemApi.getDictDataByType('PaymentReceivedType');
    if (resTypes.code == 200 && resTypes.data) paymentReceivedTypeOptions.value = resTypes.data.values || [];
    
    const parList: any = await fundApi.getAllFirstSubj();
    if(parList.code == 200 && parList.data) {
      detail.value = parList.data.map((item: any) => ({
        ...item,
        amount: ''
      }));
    }
  } catch (err) {
    console.error(err);
  }
};

const getFundDetail = async (id: number) => {
  try {
    const res: any = await fundApi.getDetails({ id });
    if (res.code == 200 && res.data) {
      Object.assign(form, res.data);
      form.id = res.data.id;
      form.amount = res.data.amount || 0;
      form.manageAmount = res.data.manageAmount || 0;
      form.taxAmount = res.data.taxAmount || 0;
      form.allotAmount = res.data.allotAmount || 0;
      
      if (res.data.projectName) {
        isContinue.value = true;
      }
      
      if (form.status == '20') {
         onRouterPush(`/pages/fund/claim/detail?id=${id}`);
      }
    }
  } catch (err) {
    console.error(err);
  }
};

const openProjectDialog = () => {
  if (isContinue.value) return;
  selectProjectRef.value?.openDialog();
};

const onProjectSelected = (item: any) => {
  form.projectId = Number(item.projectId);
  form.projectName = item.projectName;
  form.projectLeaderName = item.projectLeaderName;
  form.deptName = item.deptName;
  form.startDate = item.startDate;
  form.endDate = item.endDate;
  form.projectType = item.projectType;
};

const submitForm = async () => {
  if (!form.projectId) {
    toastRef.value?.show({ message: '请选择项目信息', type: 'error' });
    return;
  }

  const totalEntry = detail.value.reduce((total, item) => total + (Number(item.amount) || 0), 0);
  const allotAmount = Number(form.allotAmount) || 0;
  const tolerance = 0.01;

  if (totalEntry === 0) {
    toastRef.value?.show({ message: '本次认领金额不能为0', type: 'error' });
    return;
  }

  if (totalEntry - allotAmount > tolerance) {
    toastRef.value?.show({ message: '本次认领金额不得大于待认领金额', type: 'error' });
    return;
  }

  const params = JSON.parse(JSON.stringify(form));
  params.fundId = form.id;
  params.detail = detail.value.map((item: any) => ({
    ...item,
    amount: Number(item.amount || 0)
  }));
  params.amount = Number(params.amount || 0);
  params.externalAmount = Number(params.externalAmount || 0);
  params.internalAmount = Number(params.internalAmount || 0);
  
  uni.showModal({
    title: '提示',
    content: '确认提交认领？',
    success: async (resModal) => {
      if (resModal.confirm) {
        loading.value = true;
        try {
          const res: any = await claimApi.create(params);
          if (res.code == 200) {
            toastRef.value.show({ message: '认领操作成功', type: 'success' });
            setTimeout(() => {
              onRouterPush('/pages/fund/claim/index');
            }, 1000);
          } else {
            toastRef.value.show({ message: res.msg || '提交失败', type: 'error' });
          }
        } catch (err) {
          console.error(err);
        } finally {
          loading.value = false;
        }
      }
    }
  });
};

onLoad((options: any) => {
  const id = options.id ? Number(options.id) : 0;
  getDict().then(() => {
    if (id) {
      getFundDetail(id);
    }
  });
});
</script>

<style lang="scss" scoped>
.edit-container {
  height: calc(100vh - var(--window-top));
  display: flex;
  flex-direction: column;
  background-color: #f5f7fa;
  box-sizing: border-box;
}

.scroll-content {
  flex: 1;
  height: 100%;
}

.form-wrapper {
  padding: 40rpx 30rpx calc(140rpx + env(safe-area-inset-bottom));
}

.edit-form-list {
  :deep(.uv-form-item) {
    padding: 10rpx 0;
    border-bottom: 1px solid #f5f5f5;
    
    &:last-child {
      border-bottom: none;
    }
  }
}

.bottom-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: #fff;
  padding: 20rpx 30rpx;
  box-sizing: border-box;
  box-shadow: 0 -4rpx 16rpx rgba(0, 0, 0, 0.05);
  padding-bottom: calc(20rpx + env(safe-area-inset-bottom));
  z-index: 99;
}

.highlight-number {
  flex: 1;
  text-align: right;
  font-size: 28rpx;
  color: #333;
}

.primary-color {
  color: #1c9bfd !important;
  font-weight: 500;
}

.number-font {
  font-family: 'Helvetica Neue', Arial, sans-serif;
}
</style>
