Make items Decodable and hook up to a JSON dummy endpoint

Resources:
- https://stackoverflow.com/questions/56443859/display-in-json-api-table-view-in-swift
- https://www.avanderlee.com/swift/json-parsing-decoding/
- https://stackoverflow.com/questions/24321165/make-rest-api-call-in-swift

1 files changed, 53 insertions, 21 deletions

diff --git a/foray/ForayTableViewController.swift b/foray/ForayTableViewController.swift
index dc32611..a5c367a 100644
--- a/foray/ForayTableViewController.swift
+++ b/foray/ForayTableViewController.swift
@@ -7,12 +7,12 @@
 
 import UIKit
 
-enum ItemType {
+enum ItemType: String, Decodable {
     case item
     case quest
 }
 
-struct MyItem {
+struct MyItem: Decodable {
     var type: ItemType
     var releaseDate: Date
     var id: String
@@ -47,17 +47,7 @@ class ForayTableViewController: UITableViewController {
     
     // MARK: - Static data TEMP
     
-    let items = [
-        MyItem(type: .item, releaseDate: parseDate("2006-05-26"), id: "mh", name: "Miners Helmet"),
-        MyItem(type: .item, releaseDate: parseDate("2010-05-01"), id: "it", name: "Inner Tube"),
-        MyItem(type: .item, releaseDate: parseDate("2009-04-24"), id: "tbg", name: "Toboggan"),
-        MyItem(type: .item, releaseDate: parseDate("2006-03-29"), id: "spy", name: "Spy Phone"),
-        MyItem(type: .item, releaseDate: parseDate("2008-11-18"), id: "bnb", name: "Black Ninja Belt"),
-        MyItem(type: .quest, releaseDate: parseDate("2006-05-23"), id: "cmp", name: "Case of the Missing Puffles"),
-        MyItem(type: .quest, releaseDate: parseDate("2009-11-16"), id: "gsm", name: "G's Secret Mission"),
-        MyItem(type: .quest, releaseDate: parseDate("2009-04-18"), id: "cmc", name: "Case of the Missing Coins"),
-    ]
-    
+    var items = [MyItem]()
     var sections = [YearSection]()
     
     // MARK: - On load
@@ -65,14 +55,56 @@ class ForayTableViewController: UITableViewController {
     override func viewDidLoad() {
         super.viewDidLoad()
         
-        let groups = Dictionary(grouping: self.items) { (item) in
-            return firstDayOfYear(date: item.releaseDate)
-        }
-        self.sections = groups.map { (key, values) in
-            return YearSection(year: key, items: values)
-        }
-        // Sort the sections from oldest year to newest
-        self.sections.sort { (lhs, rhs) in lhs.year < rhs.year }
+        loadApiData(onComplete: { (apiItems) in
+            self.items = apiItems
+            
+            let groups = Dictionary(grouping: self.items) { (item) in
+                return firstDayOfYear(date: item.releaseDate)
+            }
+            self.sections = groups.map { (key, values) in
+                return YearSection(year: key, items: values)
+            }
+            // Sort the sections from oldest year to newest
+            self.sections.sort { (lhs, rhs) in lhs.year < rhs.year }
+            
+            self.tableView.reloadData()
+        })
+    }
+    
+    func loadApiData(onComplete: @escaping ([MyItem]) -> ()) {
+//        return [
+//            MyItem(type: .item, releaseDate: parseDate("2006-05-26"), id: "mh", name: "Miners Helmet"),
+//            MyItem(type: .item, releaseDate: parseDate("2010-05-01"), id: "it", name: "Inner Tube"),
+//            MyItem(type: .item, releaseDate: parseDate("2009-04-24"), id: "tbg", name: "Toboggan"),
+//            MyItem(type: .item, releaseDate: parseDate("2006-03-29"), id: "spy", name: "Spy Phone"),
+//            MyItem(type: .item, releaseDate: parseDate("2008-11-18"), id: "bnb", name: "Black Ninja Belt"),
+//            MyItem(type: .quest, releaseDate: parseDate("2006-05-23"), id: "cmp", name: "Case of the Missing Puffles"),
+//            MyItem(type: .quest, releaseDate: parseDate("2009-11-16"), id: "gsm", name: "G's Secret Mission"),
+//            MyItem(type: .quest, releaseDate: parseDate("2009-04-18"), id: "cmc", name: "Case of the Missing Coins"),
+//        ]
+        
+        var request = URLRequest(url: URL(string: "https://.../dummy.json")!)
+        let authData = ("..:..").data(using: .utf8)!.base64EncodedString()
+        request.addValue("Basic \(authData)", forHTTPHeaderField: "Authorization")
+        
+        URLSession.shared.dataTask(with: request, completionHandler: { data, response, error -> Void in
+            print("finished getting data")
+            print(response!)
+            
+            let jsonDecoder = JSONDecoder()
+            jsonDecoder.dateDecodingStrategy = .custom({ (decoder) -> Date in
+                let container = try decoder.singleValueContainer()
+                let dateStr = try container.decode(String.self)
+                return parseDate(dateStr)
+            })
+            let items = try! jsonDecoder.decode([MyItem].self, from: data!)
+            print("json decoded")
+            
+            // Passing back to UI, need to do it on the main thread (I think due to async?)
+            DispatchQueue.main.async {
+                onComplete(items)
+            }
+        }).resume()
     }
     
     // MARK: - Table view data source