syntax = "proto3";

package chatto.api.v1;

import "chatto/api/v1/common.proto";

// Public server profile, identity, and branding fields.
message ServerPublicProfile {
  // Display name of the Chatto server.
  string name = 1;
  // Server software version.
  string version = 2;
  // Optional server logo URL.
  optional string logo_url = 3;
  // Optional server banner URL.
  optional string banner_url = 4;
  // Optional welcome message.
  optional string welcome_message = 5;
  // Optional server description.
  optional string description = 6;
}

// Policy controlling whether self-service account creation requires an invitation.
enum AccountCreationPolicy {
  // Compatibility value used by older servers. Clients treat it as open.
  ACCOUNT_CREATION_POLICY_UNSPECIFIED = 0;
  // Self-service account creation does not require an invitation.
  ACCOUNT_CREATION_POLICY_OPEN = 1;
  // Every self-service account creation path requires a valid invitation.
  ACCOUNT_CREATION_POLICY_INVITE_ONLY = 2;
}

// Login and registration options exposed before authentication.
message ServerLogin {
  // Whether users can create accounts through the public UI.
  bool direct_registration_enabled = 1;
  // Configured login providers.
  repeated ProviderMetadata providers = 2;
  // URL for the legacy authorization flow, when enabled.
  string authorize_url = 3;
  // Admission policy for direct registration and provider auto-provisioning.
  AccountCreationPolicy account_creation_policy = 4;
  // Whether users can sign in directly with a username or email address and password.
  // Absent on older servers, where clients should treat direct login as enabled.
  optional bool direct_login_enabled = 5;
}