{
  "title": "Meshtastic Firmware — Recorder Stream",
  "description": "Live view of `.mtlog/` streams shipped by `mtlog_to_datadog.py`. Heap, packet volume, log levels, errors. One row per port.",
  "widgets": [
    {
      "definition": {
        "title": "Free heap (bytes)",
        "type": "timeseries",
        "show_legend": true,
        "requests": [
          {
            "queries": [
              {
                "name": "free_heap",
                "data_source": "metrics",
                "query": "avg:mesh.local.heap_free_bytes{service:meshtastic-firmware} by {port}"
              }
            ],
            "response_format": "timeseries",
            "display_type": "line"
          }
        ],
        "yaxis": { "label": "bytes" }
      }
    },
    {
      "definition": {
        "title": "Heap slope (bytes/min) — last 1h",
        "type": "query_value",
        "precision": 0,
        "requests": [
          {
            "queries": [
              {
                "name": "slope",
                "data_source": "metrics",
                "query": "derivative(avg:mesh.local.heap_free_bytes{service:meshtastic-firmware})",
                "aggregator": "avg"
              }
            ],
            "response_format": "scalar"
          }
        ],
        "conditional_formats": [
          { "comparator": "<", "value": -100, "palette": "white_on_red" },
          { "comparator": "<", "value": 0, "palette": "white_on_yellow" },
          { "comparator": ">=", "value": 0, "palette": "white_on_green" }
        ]
      }
    },
    {
      "definition": {
        "title": "Total heap (bytes)",
        "type": "timeseries",
        "requests": [
          {
            "queries": [
              {
                "name": "total_heap",
                "data_source": "metrics",
                "query": "avg:mesh.local.heap_total_bytes{service:meshtastic-firmware} by {port}"
              }
            ],
            "response_format": "timeseries",
            "display_type": "line"
          }
        ]
      }
    },
    {
      "definition": {
        "title": "Battery level (%)",
        "type": "timeseries",
        "requests": [
          {
            "queries": [
              {
                "name": "battery",
                "data_source": "metrics",
                "query": "avg:mesh.device.battery_level{service:meshtastic-firmware} by {port}"
              }
            ],
            "response_format": "timeseries",
            "display_type": "line"
          }
        ],
        "yaxis": { "min": "0", "max": "105" }
      }
    },
    {
      "definition": {
        "title": "Air utilization (TX %)",
        "type": "timeseries",
        "requests": [
          {
            "queries": [
              {
                "name": "airutil",
                "data_source": "metrics",
                "query": "avg:mesh.device.air_util_tx{service:meshtastic-firmware} by {port}"
              }
            ],
            "response_format": "timeseries",
            "display_type": "line"
          }
        ]
      }
    },
    {
      "definition": {
        "title": "Channel utilization (%)",
        "type": "timeseries",
        "requests": [
          {
            "queries": [
              {
                "name": "chutil",
                "data_source": "metrics",
                "query": "avg:mesh.device.channel_utilization{service:meshtastic-firmware} by {port}"
              }
            ],
            "response_format": "timeseries",
            "display_type": "line"
          }
        ]
      }
    },
    {
      "definition": {
        "title": "Log volume by level",
        "type": "timeseries",
        "show_legend": true,
        "requests": [
          {
            "response_format": "timeseries",
            "display_type": "bars",
            "queries": [
              {
                "name": "log_count",
                "data_source": "logs",
                "indexes": ["*"],
                "compute": { "aggregation": "count" },
                "search": { "query": "service:meshtastic-firmware" },
                "group_by": [
                  {
                    "facet": "@level",
                    "limit": 10,
                    "sort": { "order": "desc", "aggregation": "count" }
                  }
                ]
              }
            ]
          }
        ]
      }
    },
    {
      "definition": {
        "title": "Recent ERROR / CRIT firmware logs",
        "type": "list_stream",
        "requests": [
          {
            "response_format": "event_list",
            "query": {
              "data_source": "logs_stream",
              "query_string": "service:meshtastic-firmware (status:error OR @level:ERROR OR @level:CRIT)",
              "indexes": [],
              "sort": { "column": "timestamp", "order": "desc" }
            },
            "columns": [
              { "field": "timestamp", "width": "auto" },
              { "field": "host", "width": "auto" },
              { "field": "@port", "width": "auto" },
              { "field": "@level", "width": "auto" },
              { "field": "@thread", "width": "auto" },
              { "field": "message", "width": "stretch" }
            ]
          }
        ]
      }
    },
    {
      "definition": {
        "title": "Recorder marker events",
        "type": "list_stream",
        "requests": [
          {
            "response_format": "event_list",
            "query": {
              "data_source": "logs_stream",
              "query_string": "service:meshtastic-firmware @level:MARK",
              "indexes": [],
              "sort": { "column": "timestamp", "order": "desc" }
            },
            "columns": [
              { "field": "timestamp", "width": "auto" },
              { "field": "host", "width": "auto" },
              { "field": "message", "width": "stretch" }
            ]
          }
        ]
      }
    }
  ],
  "template_variables": [
    {
      "name": "port",
      "prefix": "port",
      "available_values": [],
      "default": "*"
    },
    { "name": "host", "prefix": "host", "available_values": [], "default": "*" }
  ],
  "layout_type": "ordered",
  "notify_list": [],
  "reflow_type": "auto"
}