Added initial Settings

internal/database/createDb.sql

@@ -14,4 +14,10 @@ create table if not exists Chapter (
     Number integer not null,
     TimeStampUnixEpoch integer not null,
     foreign key(MangaID) references Manga(ID)
+);
+
+create table if not exists Setting (
+    Name text not null primary key,
+    Value text,
+    DefaultValue text not null
 );

internal/database/database.go

@@ -11,6 +11,7 @@ type Manager struct {
 	db                *sql.DB
 	Mangas            DbTable[int, Manga]
 	Chapters          DbTable[int, Chapter]
+	Settings          DbTable[string, Setting]
 	CreateIfNotExists bool
 }
 
@@ -18,8 +19,9 @@ func NewDatabase(connectionString string, createIfNotExists bool) Manager {
 	return Manager{
 		ConnectionString:  connectionString,
 		db:                nil,
-		Mangas:            NewDbTable[int, Manga](updateManga, insertManga, loadMangas, deleteManga),
+		Mangas:            NewDbTable(updateManga, insertManga, loadMangas, deleteManga),
-		Chapters:          NewDbTable[int, Chapter](updateChapter, insertChapter, loadChapters, deleteChapter),
+		Chapters:          NewDbTable(updateChapter, insertChapter, loadChapters, deleteChapter),
+		Settings:          NewDbTable(updateSetting, insertSetting, loadSettings, deleteSetting),
 		CreateIfNotExists: createIfNotExists,
 	}
 }
@@ -75,8 +77,12 @@ func (dbMgr *Manager) Save() error {
 	if err != nil {
 		return err
 	}
+	err = dbMgr.Chapters.Save(dbMgr.db)
+	if err != nil {
+		return err
+	}
 
-	return dbMgr.Chapters.Save(dbMgr.db)
+	return dbMgr.Settings.Save(dbMgr.db)
 }
 
 //go:embed createDb.sql
@@ -98,5 +104,11 @@ func (dbMgr *Manager) load() error {
 		return err
 	}
 
+	err = dbMgr.Settings.Load(dbMgr.db)
+	if err != nil {
+		return err
+	}
+	initSettings(&dbMgr.Settings)
+
 	return nil
 }

internal/database/setting.go

@@ -0,0 +1,65 @@
+package database
+
+import (
+	"database/sql"
+)
+
+type Setting struct {
+	Name    string
+	Value   string
+	Default string
+}
+
+func NewSetting(name string, defaultValue string) Setting {
+	return Setting{
+		Name:    name,
+		Value:   defaultValue,
+		Default: defaultValue,
+	}
+}
+
+func initSettings(settings *DbTable[string, Setting]) {
+	addSettingIfNotExists(NewSetting("theme", "white"), settings)
+	addSettingIfNotExists(NewSetting("order", "title"), settings)
+}
+
+func addSettingIfNotExists(setting Setting, settings *DbTable[string, Setting]) {
+	_, exists := settings.Get(setting.Name)
+	if !exists {
+		settings.Set(setting.Name, setting)
+	}
+}
+
+func updateSetting(db *sql.DB, s *Setting) error {
+	const cmd = "UPDATE Setting set Value = ? WHERE Name = ?"
+	_, err := db.Exec(cmd, s.Value, s.Name)
+	return err
+}
+
+func insertSetting(db *sql.DB, s *Setting) error {
+	const cmd = "INSERT INTO Setting(Name, Value, DefaultValue) VALUES(?, ?, ?)"
+	_, err := db.Exec(cmd, s.Name, s.Value, s.Default)
+	return err
+}
+
+func loadSettings(db *sql.DB) (map[string]Setting, error) {
+	const cmd = "SELECT Name, Value, DefaultValue from Setting"
+	rows, err := db.Query(cmd)
+
+	res := make(map[string]Setting)
+
+	for rows.Next() {
+		setting := Setting{}
+		if err = rows.Scan(&setting.Name, &setting.Value, &setting.Default); err != nil {
+			return nil, err
+		}
+		res[setting.Name] = setting
+	}
+	return res, err
+}
+
+func deleteSetting(db *sql.DB, key string) error {
+	const cmd = "UPDATE Setting set Value = DefaultValue WHERE Name = ?"
+	_, err := db.Exec(cmd, key)
+	return err
+}

internal/database/table.go

@@ -88,6 +88,16 @@ func (d *DbTable[K, T]) All() []T {
 	return res
 }
 
+func (d *DbTable[K, T]) Map() map[K]T {
+	d.mutex.Lock()
+	defer d.mutex.Unlock()
+	res := make(map[K]T, len(d.items))
+	for k, manga := range d.items {
+		res[k] = manga
+	}
+	return res
+}
+
 func (d *DbTable[K, T]) Delete(db *sql.DB, key K) error {
 	d.mutex.Lock()
 	defer d.mutex.Unlock()

internal/server/handler.go

@@ -136,7 +136,8 @@ func (s *Server) HandleMenu(w http.ResponseWriter, r *http.Request) {
 	fmt.Printf("Sorting took %d ms\n", (nex-n)/1000000)
 
 	menuViewModel := view.MenuViewModel{
-		Mangas: mangaViewModels,
+		Settings: s.DbMgr.Settings.Map(),
+		Mangas:   mangaViewModels,
 	}
 
 	err := tmpl.Execute(w, menuViewModel)
@@ -336,6 +337,23 @@ func (s *Server) HandlePrev(w http.ResponseWriter, r *http.Request) {
 	http.Redirect(w, r, "/current/", http.StatusTemporaryRedirect)
 }
 
+func (s *Server) HandleSetting(w http.ResponseWriter, r *http.Request) {
+	settingName := r.PostFormValue("setting")
+	settingValue := r.PostFormValue(settingName)
+
+	setting, ok := s.DbMgr.Settings.Get(settingName)
+	if !ok {
+		s.DbMgr.Settings.Set(settingName, database.NewSetting(settingName, settingValue))
+	} else {
+		if setting.Value != settingValue {
+			setting.Value = settingValue
+			s.DbMgr.Settings.Set(settingName, setting)
+		}
+	}
+
+	http.Redirect(w, r, "/", http.StatusTemporaryRedirect)
+}
+
 func (s *Server) HandleNewQuery(w http.ResponseWriter, r *http.Request) {
 	sub := r.PostFormValue("subUrl")
 

internal/server/server.go

@@ -58,6 +58,7 @@ func (s *Server) Start(port int) error {
 	http.HandleFunc("POST /exit", s.HandleExit)
 	http.HandleFunc("POST /delete", s.HandleDelete)
 	http.HandleFunc("/favicon.ico", s.HandleFavicon)
+	http.HandleFunc("POST /setting/", s.HandleSetting)
 
 	// Update Latest Chapter every 5 Minutes
 	go func(s *Server) {

internal/view/Views/menu.gohtml

@@ -12,7 +12,7 @@
             font-size: 25px;
         }
 
-        .dark-mode {
+        .dark {
             background-color: #171717;
             color: white;
         }
@@ -101,17 +101,31 @@
             text-align: center;
         }
 
+        label {
+            display: flex;
+            align-content: center;
+            justify-content: center;
+            margin: 0 auto;
+        }
+
+        select {
+            width: 10em;
+            margin-bottom: 10px;
+            margin-top: 10px;
+        }
 
     </style>
     <script>
-        function myFunction() {
+        function myFunction(theme) {
-            var element = document.body;
+            if (theme !== "white") {
-            element.classList.toggle("dark-mode");
+                var element = document.body;
+                element.classList.toggle(theme);
+            }
         }
     </script>
 
 </head>
-<body>
+<body onload="myFunction({{(index .Settings "theme").Value}})">
     <form method="post" action="/new/">
         <label>
             New Sub Url
@@ -119,7 +133,15 @@
         </label>
         <input type="submit" value="Open" class="button-36">
     </form>
-    <button onclick="myFunction()">Toggle dark mode</button>
+
+    <form method="post" action="/setting/">
+        <label for="theme">Theme</label>
+        <select onchange="this.form.submit()" id="theme" name="theme">
+            <option value="white">White</option>
+            <option value="dark">Dark</option>
+        </select>
+        <input type="hidden" name="setting" value="theme">
+    </form>
 
     <table class="table">
         <tr>

internal/view/viewmodels.go

@@ -1,5 +1,7 @@
 package view
 
+import "mangaGetter/internal/database"
+
 type Image struct {
 	Path  string
 	Index int
@@ -21,5 +23,6 @@ type MangaViewModel struct {
 }
 
 type MenuViewModel struct {
-	Mangas []MangaViewModel
+	Settings map[string]database.Setting
+	Mangas   []MangaViewModel
 }