feat: modularize external providers

Tiku.Infrastructure/Auth/SelfHostedIdentityProvider.cs

@@ -0,0 +1,54 @@
+using Tiku.Application.Auth;
+
+namespace Tiku.Infrastructure.Auth;
+
+internal sealed class SelfHostedIdentityProvider(IAuthService authService) : IIdentityProvider
+{
+    public async Task<IdentityProviderResult> AuthenticateAsync(
+        IdentityProviderRequest request,
+        CancellationToken cancellationToken = default)
+    {
+        var provider = request.Provider.Trim().ToLowerInvariant().Replace("-", "_", StringComparison.Ordinal);
+        var authenticated = provider switch
+        {
+            "password" => await authService.LoginWithPasswordAsync(
+                new PasswordLoginRequest(
+                    request.TenantId,
+                    request.Identifier,
+                    request.Secret,
+                    request.IpAddress,
+                    request.UserAgent),
+                cancellationToken),
+            "sms" => await authService.LoginWithSmsAsync(
+                new SmsLoginRequest(
+                    request.TenantId,
+                    request.Identifier,
+                    request.Secret,
+                    request.IpAddress,
+                    request.UserAgent),
+                cancellationToken),
+            "wechat_web" => await authService.LoginWithWechatWebAsync(
+                new WechatLoginRequest(
+                    request.TenantId,
+                    request.Secret,
+                    request.IpAddress,
+                    request.UserAgent),
+                cancellationToken),
+            "wechat_miniapp" => await authService.LoginWithWechatMiniAppAsync(
+                new WechatLoginRequest(
+                    request.TenantId,
+                    request.Secret,
+                    request.IpAddress,
+                    request.UserAgent),
+                cancellationToken),
+            _ => throw new AuthProviderNotConfiguredException(provider)
+        };
+
+        return new IdentityProviderResult(
+            provider,
+            authenticated.UserId.ToString("N"),
+            authenticated.Phone,
+            authenticated.Email,
+            authenticated.Name);
+    }
+}