syntax = "proto3";

package meshcore.v1;

option go_package = "github.com/corescope/proto/v1";

// ─── Pagination ────────────────────────────────────────────────────────────────

// Pagination metadata returned by paginated list endpoints.
message PaginationInfo {
  // Total matching count before pagination.
  int32 total = 1;
  // Requested page size.
  int32 limit = 2;
  // Requested offset.
  int32 offset = 3;
}

// ─── Error / OK ────────────────────────────────────────────────────────────────

// Standard error envelope (400, 404).
message ErrorResponse {
  // Human-readable error description.
  string error = 1;
}

// Generic success response (e.g. POST /api/perf/reset).
message OkResponse {
  bool ok = 1;
}

// ─── Role Counts ───────────────────────────────────────────────────────────────

// Per-role node counts. Used in StatsResponse and NodeListResponse.
message RoleCounts {
  int32 repeaters = 1;
  int32 rooms = 2;
  int32 companions = 3;
  int32 sensors = 4;
}

// ─── Histogram ─────────────────────────────────────────────────────────────────

// Single bin in a histogram.
message HistogramBin {
  // Bin start value.
  double x = 1;
  // Bin width.
  double w = 2;
  // Number of samples in bin.
  int32 count = 3;
}

// Pre-computed histogram with bins and value range.
// Used in RF analytics (SNR, RSSI, packet sizes) and distance analytics.
message Histogram {
  repeated HistogramBin bins = 1;
  // Minimum value across all data points.
  double min = 2;
  // Maximum value across all data points.
  double max = 3;
}

// ─── Signal Statistics ─────────────────────────────────────────────────────────

// Aggregate signal quality stats (min/max/avg/median/stddev).
// Used for SNR and RSSI blocks in RF analytics.
message SignalStats {
  double min = 1;
  double max = 2;
  double avg = 3;
  double median = 4;
  double stddev = 5;
}

// ─── Time-bucketed count ───────────────────────────────────────────────────────

// Generic label + count pair for time-series and distribution charts.
// Used in activity timelines, observer analytics timelines, etc.
// Node analytics uses `bucket`, observer analytics uses `label`.
message TimeBucket {
  // Time label used by observer analytics (e.g. "Sat 12 AM").
  optional string label = 1;
  // Count in this bucket.
  int32 count = 2;
  // ISO timestamp used by node analytics (e.g. "2026-03-21T21:00:00Z").
  optional string bucket = 3;
}