feat: add projects list, detail view, and home pinning

Implements: https://todo.sr.ht/~ccleberg/hutch/26
Implements: https://todo.sr.ht/~ccleberg/hutch/27
Implements: https://todo.sr.ht/~ccleberg/hutch/28

1 files changed, 50 insertions, 0 deletions

diff --git a/Hutch/Views/Projects/ProjectPinStore.swift b/Hutch/Views/Projects/ProjectPinStore.swift
new file mode 100644
index 0000000..cd3d961
--- /dev/null
+++ b/Hutch/Views/Projects/ProjectPinStore.swift
@@ -0,0 +1,50 @@
+import Foundation
+
+enum ProjectPinStore {
+    static func loadPinnedProjectIDs(
+        for userKey: String,
+        defaults: UserDefaults = .standard
+    ) -> [String] {
+        let pinnedProjects = loadAll(defaults: defaults)
+        return pinnedProjects[userKey] ?? []
+    }
+
+    static func isPinned(
+        projectID: String,
+        for userKey: String,
+        defaults: UserDefaults = .standard
+    ) -> Bool {
+        loadPinnedProjectIDs(for: userKey, defaults: defaults).contains(projectID)
+    }
+
+    static func togglePin(
+        projectID: String,
+        for userKey: String,
+        defaults: UserDefaults = .standard
+    ) {
+        var pinnedProjects = loadAll(defaults: defaults)
+        var projectIDs = pinnedProjects[userKey] ?? []
+
+        if let index = projectIDs.firstIndex(of: projectID) {
+            projectIDs.remove(at: index)
+        } else {
+            projectIDs.append(projectID)
+        }
+
+        pinnedProjects[userKey] = projectIDs
+        save(pinnedProjects, defaults: defaults)
+    }
+
+    private static func loadAll(defaults: UserDefaults) -> [String: [String]] {
+        guard let data = defaults.data(forKey: AppStorageKeys.pinnedHomeProjects) else {
+            return [:]
+        }
+
+        return (try? JSONDecoder().decode([String: [String]].self, from: data)) ?? [:]
+    }
+
+    private static func save(_ pinnedProjects: [String: [String]], defaults: UserDefaults) {
+        guard let data = try? JSONEncoder().encode(pinnedProjects) else { return }
+        defaults.set(data, forKey: AppStorageKeys.pinnedHomeProjects)
+    }
+}