feat: scaffold CLI project with ClusterClient connection and System.CommandLine

src/ScadaLink.CLI/CliConfig.cs

@@ -0,0 +1,66 @@
+using System.Text.Json;
+
+namespace ScadaLink.CLI;
+
+public class CliConfig
+{
+    public List<string> ContactPoints { get; set; } = new();
+    public string? LdapServer { get; set; }
+    public int LdapPort { get; set; } = 636;
+    public bool LdapUseTls { get; set; } = true;
+    public string DefaultFormat { get; set; } = "json";
+
+    public static CliConfig Load()
+    {
+        var config = new CliConfig();
+
+        // Load from config file
+        var configPath = Path.Combine(
+            Environment.GetFolderPath(Environment.SpecialFolder.UserProfile),
+            ".scadalink", "config.json");
+        if (File.Exists(configPath))
+        {
+            var json = File.ReadAllText(configPath);
+            var fileConfig = JsonSerializer.Deserialize<CliConfigFile>(json,
+                new JsonSerializerOptions { PropertyNameCaseInsensitive = true });
+            if (fileConfig != null)
+            {
+                if (fileConfig.ContactPoints?.Count > 0) config.ContactPoints = fileConfig.ContactPoints;
+                if (fileConfig.Ldap != null)
+                {
+                    config.LdapServer = fileConfig.Ldap.Server;
+                    config.LdapPort = fileConfig.Ldap.Port;
+                    config.LdapUseTls = fileConfig.Ldap.UseTls;
+                }
+                if (!string.IsNullOrEmpty(fileConfig.DefaultFormat)) config.DefaultFormat = fileConfig.DefaultFormat;
+            }
+        }
+
+        // Override from environment variables
+        var envContacts = Environment.GetEnvironmentVariable("SCADALINK_CONTACT_POINTS");
+        if (!string.IsNullOrEmpty(envContacts))
+            config.ContactPoints = envContacts.Split(',', StringSplitOptions.RemoveEmptyEntries).ToList();
+
+        var envLdap = Environment.GetEnvironmentVariable("SCADALINK_LDAP_SERVER");
+        if (!string.IsNullOrEmpty(envLdap)) config.LdapServer = envLdap;
+
+        var envFormat = Environment.GetEnvironmentVariable("SCADALINK_FORMAT");
+        if (!string.IsNullOrEmpty(envFormat)) config.DefaultFormat = envFormat;
+
+        return config;
+    }
+
+    private class CliConfigFile
+    {
+        public List<string>? ContactPoints { get; set; }
+        public LdapConfig? Ldap { get; set; }
+        public string? DefaultFormat { get; set; }
+    }
+
+    private class LdapConfig
+    {
+        public string? Server { get; set; }
+        public int Port { get; set; } = 636;
+        public bool UseTls { get; set; } = true;
+    }
+}