{
  "lexicon": 1,
  "id": "sh.tangled.ci.subscribePipelineLogs",
  "defs": {
    "main": {
      "type": "subscription",
      "description": "Pipeline logs stream",
      "parameters": {
        "type": "params",
        "required": ["pipeline"],
        "properties": {
          "pipeline": {
            "type": "string",
            "format": "tid",
            "description": "Pipeline ID"
          },
          "workflows": {
            "type": "array",
            "items": {
              "type": "string",
              "description": "Workflow name"
            },
            "description": "filter logs by specific workflows"
          }
        }
      },
      "message": {
        "schema": {
          "type": "union",
          "refs": ["#control", "#data"]
        }
      },
      "errors": [
        {
          "name": "WorkflowNotFound",
          "description": "Workflow not found"
        },
        {
          "name": "InvalidRequest",
          "description": "Invalid request parameters"
        }
      ]
    },
    "control": {
      "type": "object",
      "required": ["time", "workflow", "step", "content"],
      "properties": {
        "time": { "type": "string", "format": "datetime" },
        "workflow": { "type": "string", "description": "workflow name" },
        "step": { "type": "integer", "description": "Step ID" },
        "content": { "type": "string" },
        "command": { "type": "string", "description": "Step command" },
        "status": {
          "type": "string",
          "enum": ["start", "end"],
          "description": "Step status"
        },
        "kind": {
          "type": "string",
          "enum": ["system", "user"],
          "description": "Step kind"
        }
      }
    },
    "data": {
      "type": "object",
      "required": ["time", "workflow", "step", "content", "stream"],
      "properties": {
        "time": { "type": "string", "format": "datetime" },
        "workflow": { "type": "string", "description": "workflow name" },
        "step": { "type": "integer", "description": "Step ID" },
        "content": { "type": "string" },
        "stream": { "type": "string", "enum": [ "stdout", "stderr" ] }
      }
    }
  }
}