syntax = "proto3";

package api;

option go_package = "github.com/chirpstack/chirpstack/api/go/v4/api";
option java_package = "io.chirpstack.api";
option java_multiple_files = true;
option java_outer_classname = "DeviceProto";
option csharp_namespace = "Chirpstack.Api";
option php_namespace = "Chirpstack\\Api";
option php_metadata_namespace = "GPBMetadata\\Chirpstack\\Api";

import "common/common.proto";
import "google/api/annotations.proto";
import "google/protobuf/timestamp.proto";
import "google/protobuf/struct.proto";
import "google/protobuf/empty.proto";

// DeviceService is the service providing API methods for managing devices.
service DeviceService {
  // Create the given device.
  rpc Create(CreateDeviceRequest) returns (google.protobuf.Empty) {
    option (google.api.http) = {
      post : "/api/devices"
      body : "*"
    };
  }

  // Get returns the device for the given DevEUI.
  rpc Get(GetDeviceRequest) returns (GetDeviceResponse) {
    option (google.api.http) = {
      get : "/api/devices/{dev_eui}"
    };
  }

  // Update the given device.
  rpc Update(UpdateDeviceRequest) returns (google.protobuf.Empty) {
    option (google.api.http) = {
      put : "/api/devices/{device.dev_eui}"
      body : "*"
    };
  }

  // Delete the device with the given DevEUI.
  rpc Delete(DeleteDeviceRequest) returns (google.protobuf.Empty) {
    option (google.api.http) = {
      delete : "/api/devices/{dev_eui}"
    };
  }

  // Get the list of devices.
  rpc List(ListDevicesRequest) returns (ListDevicesResponse) {
    option (google.api.http) = {
      get : "/api/devices"
    };
  }

  // Create the given device-keys.
  rpc CreateKeys(CreateDeviceKeysRequest) returns (google.protobuf.Empty) {
    option (google.api.http) = {
      post : "/api/devices/{device_keys.dev_eui}/keys"
      body : "*"
    };
  }

  // Get the device-keys for the given DevEUI.
  rpc GetKeys(GetDeviceKeysRequest) returns (GetDeviceKeysResponse) {
    option (google.api.http) = {
      get : "/api/devices/{dev_eui}/keys"
    };
  }

  // Update the given device-keys.
  rpc UpdateKeys(UpdateDeviceKeysRequest) returns (google.protobuf.Empty) {
    option (google.api.http) = {
      put : "/api/devices/{device_keys.dev_eui}/keys"
      body : "*"
    };
  }

  // Delete the device-keys for the given DevEUI.
  rpc DeleteKeys(DeleteDeviceKeysRequest) returns (google.protobuf.Empty) {
    option (google.api.http) = {
      delete : "/api/devices/{dev_eui}/keys"
    };
  }

  // FlushDevNonces flushes the OTAA device nonces.
  rpc FlushDevNonces(FlushDevNoncesRequest) returns (google.protobuf.Empty) {
    option (google.api.http) = {
      delete : "/api/devices/{dev_eui}/dev-nonces"
    };
  }

  // Activate (re)activates the device with the given parameters (for ABP or for
  // importing OTAA activations).
  rpc Activate(ActivateDeviceRequest) returns (google.protobuf.Empty) {
    option (google.api.http) = {
      post : "/api/devices/{device_activation.dev_eui}/activate"
      body : "*"
    };
  }

  // Deactivate de-activates the device.
  rpc Deactivate(DeactivateDeviceRequest) returns (google.protobuf.Empty) {
    option (google.api.http) = {
      delete : "/api/devices/{dev_eui}/activation"
    };
  }

  // GetActivation returns the current activation details of the device (OTAA or
  // ABP).
  rpc GetActivation(GetDeviceActivationRequest)
      returns (GetDeviceActivationResponse) {
    option (google.api.http) = {
      get : "/api/devices/{dev_eui}/activation"
    };
  }

  // GetRandomDevAddr returns a random DevAddr taking the NwkID prefix into
  // account.
  rpc GetRandomDevAddr(GetRandomDevAddrRequest)
      returns (GetRandomDevAddrResponse) {
    option (google.api.http) = {
      post : "/api/devices/{dev_eui}/get-random-dev-addr"
    };
  }

  // GetMetrics returns the device metrics.
  // Note that this requires a device-profile with codec and measurements
  // configured.
  rpc GetMetrics(GetDeviceMetricsRequest) returns (GetDeviceMetricsResponse) {
    option (google.api.http) = {
      get : "/api/devices/{dev_eui}/metrics"
    };
  }

  // GetLinkMetrics returns the device link metrics.
  // This includes uplinks, downlinks, RSSI, SNR, etc...
  rpc GetLinkMetrics(GetDeviceLinkMetricsRequest)
      returns (GetDeviceLinkMetricsResponse) {
    option (google.api.http) = {
      get : "/api/devices/{dev_eui}/link-metrics"
    };
  }

  // Enqueue adds the given item to the downlink queue.
  rpc Enqueue(EnqueueDeviceQueueItemRequest)
      returns (EnqueueDeviceQueueItemResponse) {
    option (google.api.http) = {
      post : "/api/devices/{queue_item.dev_eui}/queue"
      body : "*"
    };
  }

  // FlushQueue flushes the downlink device-queue.
  rpc FlushQueue(FlushDeviceQueueRequest) returns (google.protobuf.Empty) {
    option (google.api.http) = {
      delete : "/api/devices/{dev_eui}/queue"
    };
  }

  // GetQueue returns the downlink device-queue.
  rpc GetQueue(GetDeviceQueueItemsRequest)
      returns (GetDeviceQueueItemsResponse) {
    option (google.api.http) = {
      get : "/api/devices/{dev_eui}/queue"
    };
  }

  // GetNextFCntDown returns the next FCntDown to use for enqueing encrypted
  // downlinks. The difference with the DeviceActivation f_cont_down is that
  // this method takes potential existing queue-items into account.
  rpc GetNextFCntDown(GetDeviceNextFCntDownRequest)
      returns (GetDeviceNextFCntDownResponse) {
    option (google.api.http) = {
      post : "/api/devices/{dev_eui}/get-next-f-cnt-down"
      body : "*"
    };
  }
}

message Device {
  // DevEUI (EUI64).
  string dev_eui = 1;

  // Name.
  string name = 2;

  // Description.
  string description = 3;

  // Application ID (UUID).
  string application_id = 4;

  // Device-profile ID (UUID).
  string device_profile_id = 5;

  // Skip frame-counter checks (this is insecure, but could be helpful for
  // debugging).
  bool skip_fcnt_check = 6;

  // Device is disabled.
  bool is_disabled = 7;

  // Variables (user defined).
  // These variables can be used together with integrations to store tokens /
  // secrets that must be configured per device. These variables are not
  // exposed in the event payloads.
  map<string, string> variables = 8;

  // Tags (user defined).
  // These tags can be used to add additional information to the device.
  // These tags are exposed in all the integration events.
  map<string, string> tags = 9;

  // JoinEUI (optional, EUI64).
  // This field will be automatically set / updated on OTAA. However, in some
  // cases it must be pre-configured. For example to allow OTAA using a Relay.
  // In this case the Relay needs to know the JoinEUI + DevEUI combinations
  // of the devices for which it needs to forward uplinks.
  string join_eui = 10;
}

message DeviceStatus {
  // The device margin status
  // -32..32: The demodulation SNR ration in dB
  int32 margin = 1;

  // Device is connected to an external power source.
  bool external_power_source = 2;

  // Device battery level as a percentage.
  // -1 when the battery level is not available.
  float battery_level = 3;
}

message DeviceListItem {
  // DevEUI (EUI64).
  string dev_eui = 1;

  // Created at timestamp.
  google.protobuf.Timestamp created_at = 2;

  // Last update timestamp.
  google.protobuf.Timestamp updated_at = 3;

  // Last seen at timestamp.
  google.protobuf.Timestamp last_seen_at = 4;

  // Name.
  string name = 5;

  // Description.
  string description = 6;

  // Device-profile ID (UUID).
  string device_profile_id = 7;

  // Device-profile name.
  string device_profile_name = 8;

  // Device status.
  DeviceStatus device_status = 9;
}

message DeviceKeys {
  // DevEUI (EUI64).
  string dev_eui = 1;

  // Network root key (128 bit).
  // Note: For LoRaWAN 1.0.x, use this field for the LoRaWAN 1.0.x 'AppKey`!
  string nwk_key = 2;

  // Application root key (128 bit).
  // Note: This field only needs to be set for LoRaWAN 1.1.x devices!
  string app_key = 3;
}

message CreateDeviceRequest {
  // Device object.
  Device device = 1;
}

message GetDeviceRequest {
  // DevEUI (EUI64).
  string dev_eui = 1;
}

message GetDeviceResponse {
  // Device object.
  Device device = 1;

  // Created at timestamp.
  google.protobuf.Timestamp created_at = 2;

  // Last update timestamp.
  google.protobuf.Timestamp updated_at = 3;

  // Last seen at timestamp.
  google.protobuf.Timestamp last_seen_at = 4;

  // Device status.
  DeviceStatus device_status = 5;

  // Enabled device class.
  common.DeviceClass class_enabled = 6;
}

message UpdateDeviceRequest {
  // Device object.
  Device device = 1;
}

message DeleteDeviceRequest {
  // DevEUI (EUI64).
  string dev_eui = 1;
}

message ListDevicesRequest {
  // Max number of devices to return in the result-set.
  uint32 limit = 1;

  // Offset in the result-set (for pagination).
  uint32 offset = 2;

  // If set, the given string will be used to search on name (optional).
  string search = 3;

  // Application ID (UUID) to filter devices on.
  string application_id = 4;

  // Multicst-group ID (UUID) to filter devices on.
  string multicast_group_id = 5;
}

message ListDevicesResponse {
  // Total number of devices.
  uint32 total_count = 1;

  // Result-set.
  repeated DeviceListItem result = 2;
}

message CreateDeviceKeysRequest {
  // Device-keys object.
  DeviceKeys device_keys = 1;
}

message GetDeviceKeysRequest {
  // DevEUI (EUI64).
  string dev_eui = 1;
}

message GetDeviceKeysResponse {
  // Device-keys object.
  DeviceKeys device_keys = 1;

  // Created at timestamp.
  google.protobuf.Timestamp created_at = 2;

  // Last update timestamp.
  google.protobuf.Timestamp updated_at = 3;
}

message UpdateDeviceKeysRequest {
  // Device-keys object.
  DeviceKeys device_keys = 1;
}

message DeleteDeviceKeysRequest {
  // DevEUI (EUI64).
  string dev_eui = 1;
}

message DeviceActivation {
  // Device EUI (EUI64).
  string dev_eui = 1;

  // Device address (HEX encoded).
  string dev_addr = 2;

  // Application session key (HEX encoded).
  string app_s_key = 3;

  // Network session encryption key (HEX encoded).
  // Note: For ABP in LoRaWAN 1.0.x, use this, the serving and the forwarding
  // network session integrity key fields with the LoRaWAN 1.0.x 'NwkSKey`!
  string nwk_s_enc_key = 4;

  // Serving network session integrity key (HEX encoded).
  string s_nwk_s_int_key = 8;

  // Forwarding network session integrity key (HEX encoded).
  string f_nwk_s_int_key = 9;

  // Uplink frame-counter.
  uint32 f_cnt_up = 5;

  // Downlink network frame-counter.
  uint32 n_f_cnt_down = 6;

  // Downlink application frame-counter.
  uint32 a_f_cnt_down = 10;
}

message ActivateDeviceRequest {
  // Device activation object.
  DeviceActivation device_activation = 1;
}

message DeactivateDeviceRequest {
  // DevEUI (EUI64).
  string dev_eui = 1;
}

message GetDeviceActivationRequest {
  // DevEUI (EUI64).
  string dev_eui = 1;
}

message GetDeviceActivationResponse {
  // Device activation object.
  DeviceActivation device_activation = 1;

  // Join-Server context.
  // A non-empty value indicatest that ChirpStack does not have access to
  // the AppSKey and that the encryption / decryption of the payloads is
  // the responsibility of the end-application.
  common.JoinServerContext join_server_context = 2;
}

message GetRandomDevAddrRequest {
  // DevEUI (EUI64).
  string dev_eui = 1;
}

message GetRandomDevAddrResponse {
  // DevAddr.
  string dev_addr = 1;
}

message GetDeviceMetricsRequest {
  // DevEUI (EUI64).
  string dev_eui = 1;

  // Interval start timestamp.
  google.protobuf.Timestamp start = 2;

  // Interval end timestamp.
  google.protobuf.Timestamp end = 3;

  // Aggregation.
  common.Aggregation aggregation = 4;
}

message GetDeviceMetricsResponse {
  map<string, common.Metric> metrics = 1;

  map<string, DeviceState> states = 2;
}

message DeviceState {
  // Name.
  string name = 2;

  // Value.
  string value = 3;
}

message GetDeviceLinkMetricsRequest {
  // DevEUI (EUI64).
  string dev_eui = 1;

  // Interval start timestamp.
  google.protobuf.Timestamp start = 2;

  // Interval end timestamp.
  google.protobuf.Timestamp end = 3;

  // Aggregation.
  common.Aggregation aggregation = 4;
}

message GetDeviceLinkMetricsResponse {
  // Packets received from the device.
  common.Metric rx_packets = 1;

  // RSSI (as reported by the gateway(s)).
  common.Metric gw_rssi = 2;

  // SNR (as reported by the gateway(s)).
  common.Metric gw_snr = 3;

  // Packets received by frequency.
  common.Metric rx_packets_per_freq = 4;

  // Packets received by DR.
  common.Metric rx_packets_per_dr = 5;

  // Errors.
  common.Metric errors = 6;
}

message DeviceQueueItem {
  // ID (UUID).
  // This is automatically generated on enqueue.
  string id = 1;

  // Device EUI (EUI64).
  string dev_eui = 2;

  // Confirmed.
  bool confirmed = 3;

  // FPort (must be > 0).
  uint32 f_port = 4;

  // Data.
  // Or use the json_object field when a codec has been configured.
  bytes data = 5;

  // Only use this when a codec has been configured that can encode this
  // object to bytes.
  google.protobuf.Struct object = 6;

  // Is pending.
  // This is set by ChirpStack to true when the downlink is pending (e.g. it
  // has been sent, but a confirmation is still pending).
  bool is_pending = 7;

  // Downlink frame-counter.
  // Do not set this for plain-text data payloads. It will be automatically set
  // by ChirpStack when the payload has been sent as downlink.
  uint32 f_cnt_down = 8;

  // Is encrypted.
  // This must be set to true if the end-application has already encrypted
  // the data payload. In this case, the f_cnt_down field must be set to
  // the corresponding frame-counter which has been used during the encryption.
  bool is_encrypted = 9;

  // Expires at (optional).
  // Expired queue-items will be automatically removed from the queue.
  google.protobuf.Timestamp expires_at = 10;
}

message EnqueueDeviceQueueItemRequest { DeviceQueueItem queue_item = 1; }

message EnqueueDeviceQueueItemResponse {
  // ID (UUID).
  string id = 1;
}

message FlushDeviceQueueRequest {
  // Device EUI (EUI64).
  string dev_eui = 1;
}

message GetDeviceQueueItemsRequest {
  // Device EUI (EUI64).
  string dev_eui = 1;

  // Return only the count, not the result-set.
  bool count_only = 2;
}

message GetDeviceQueueItemsResponse {
  // Total number of queue items.
  uint32 total_count = 1;

  // Result-set.
  repeated DeviceQueueItem result = 2;
}

message FlushDevNoncesRequest {
  // Device EUI (EUI64).
  string dev_eui = 1;
}

message GetDeviceNextFCntDownRequest {
  // Device EUI (EUI64).
  string dev_eui = 1;
}

message GetDeviceNextFCntDownResponse {
  // FCntDown.
  uint32 f_cnt_down = 1;
}