实现订单 Tab 并接入扫码核销流程

suixinkan/UI/Orders/OrderSourcePickerViewController.swift

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+//
+//  OrderSourcePickerViewController.swift
+//  suixinkan
+//
+
+import SnapKit
+import UIKit
+
+/// 订单来源选择器。
+final class OrderSourcePickerViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {
+
+    var onPersonSelected: ((OrderSourcePerson) -> Void)?
+    var onLeadSelected: ((OrderSourceSelection) -> Void)?
+
+    private let people: [OrderSourcePerson]
+    private let leads: [OrderSourceLead]
+    private let selectedPerson: OrderSourcePerson?
+    private let tableView = UITableView(frame: .zero, style: .insetGrouped)
+    private var showingLeads = false
+
+    init(people: [OrderSourcePerson], leads: [OrderSourceLead], selectedPerson: OrderSourcePerson?) {
+        self.people = people
+        self.leads = leads
+        self.selectedPerson = selectedPerson
+        self.showingLeads = !leads.isEmpty
+        super.init(nibName: nil, bundle: nil)
+    }
+
+    @available(*, unavailable)
+    required init?(coder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        title = showingLeads ? "选择带客单" : "选择获客员"
+        view.backgroundColor = UIColor(hex: 0xF5F5F5)
+        navigationItem.leftBarButtonItem = UIBarButtonItem(title: "关闭", style: .plain, target: self, action: #selector(closeTapped))
+        tableView.dataSource = self
+        tableView.delegate = self
+        view.addSubview(tableView)
+        tableView.snp.makeConstraints { $0.edges.equalToSuperview() }
+    }
+
+    @objc private func closeTapped() {
+        dismiss(animated: true)
+    }
+
+    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+        showingLeads ? leads.count : people.count
+    }
+
+    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+        let cell = UITableViewCell(style: .subtitle, reuseIdentifier: nil)
+        if showingLeads {
+            let lead = leads[indexPath.row]
+            cell.textLabel?.text = lead.displayText
+            cell.detailTextLabel?.text = lead.userMobile
+        } else {
+            let person = people[indexPath.row]
+            cell.textLabel?.text = person.name
+            cell.detailTextLabel?.text = person.phone
+        }
+        return cell
+    }
+
+    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
+        if showingLeads, let person = selectedPerson {
+            let lead = leads[indexPath.row]
+            onLeadSelected?(OrderSourceSelection(person: person, lead: lead))
+            dismiss(animated: true)
+        } else {
+            onPersonSelected?(people[indexPath.row])
+        }
+    }
+}