feat: add resident miniapp MVP

miniapp/miniprogram/pages/express/create.js

@@ -1 +1,71 @@
-Page({})
+const { calculateExpressFeeCent, createExpressOrder } = require('../../api/expressApi')
+const { listAddresses } = require('../../api/addressApi')
+const { setField } = require('../../utils/request')
+
+Page({
+  data: {
+    addresses: [],
+    addressIndex: 0,
+    feeCent: 300,
+    submitting: false,
+    form: {
+      expressCompany: '',
+      pickupCode: '',
+      pickupAddress: '',
+      receiverPhone: '',
+      addressId: null,
+      packageCount: 1,
+      remark: ''
+    }
+  },
+
+  onLoad() {
+    listAddresses()
+      .then((addresses) => {
+        this.setData({
+          addresses: addresses || [],
+          'form.addressId': addresses && addresses[0] ? addresses[0].id : null
+        })
+      })
+      .catch(() => {})
+  },
+
+  onFieldInput(event) {
+    setField(this, event)
+  },
+
+  onAddressChange(event) {
+    const index = Number(event.detail.value)
+    const address = this.data.addresses[index]
+    this.setData({
+      addressIndex: index,
+      'form.addressId': address ? address.id : null
+    })
+  },
+
+  onPackageCountChange(event) {
+    const packageCount = Number(event.detail.value || 1)
+    this.setData({
+      'form.packageCount': packageCount,
+      feeCent: calculateExpressFeeCent(packageCount)
+    })
+  },
+
+  submit() {
+    if (this.data.submitting) {
+      return
+    }
+    if (!this.data.form.addressId) {
+      wx.showToast({ title: '请先添加地址', icon: 'none' })
+      return
+    }
+    this.setData({ submitting: true })
+    createExpressOrder(this.data.form)
+      .then(() => {
+        wx.showToast({ title: '已提交' })
+        wx.navigateTo({ url: '/pages/orders/index' })
+      })
+      .catch((error) => wx.showToast({ title: error.message, icon: 'none' }))
+      .finally(() => this.setData({ submitting: false }))
+  }
+})