{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://git.mirv.top/verstak/verstak-sdk/schemas/events/lifecycle.json",
  "title": "Verstak Lifecycle Events",
  "description": "Event schemas for plugin and application lifecycle events",
  "type": "object",
  "properties": {
    "events": {
      "type": "array",
      "items": {
        "$ref": "#/$defs/LifecycleEvent"
      }
    }
  },
  "$defs": {
    "LifecycleEvent": {
      "type": "object",
      "properties": {
        "name": { "type": "string" },
        "description": { "type": "string" },
        "schema": {
          "type": "object",
          "properties": {
            "type": { "type": "string", "const": "object" },
            "properties": { "type": "object" },
            "required": { "type": "array", "items": { "type": "string" } }
          },
          "required": ["type", "properties", "required"]
        }
      },
      "required": ["name", "description", "schema"]
    }
  },
  "events": [
    {
      "name": "plugin.enabled",
      "description": "A plugin has been enabled",
      "schema": {
        "type": "object",
        "properties": {
          "pluginId": { "type": "string", "description": "Plugin identifier" },
          "version": { "type": "string", "description": "Plugin version" },
          "enabledAt": { "type": "string", "description": "ISO 8601 timestamp" }
        },
        "required": ["pluginId", "enabledAt"]
      }
    },
    {
      "name": "plugin.disabled",
      "description": "A plugin has been disabled",
      "schema": {
        "type": "object",
        "properties": {
          "pluginId": { "type": "string", "description": "Plugin identifier" },
          "disabledAt": { "type": "string", "description": "ISO 8601 timestamp" }
        },
        "required": ["pluginId", "disabledAt"]
      }
    },
    {
      "name": "plugin.failed",
      "description": "A plugin has failed to load or run",
      "schema": {
        "type": "object",
        "properties": {
          "pluginId": { "type": "string", "description": "Plugin identifier" },
          "error": { "type": "string", "description": "Error message" },
          "phase": {
            "type": "string",
            "description": "Lifecycle phase where failure occurred",
            "enum": ["discovery", "validation", "dependency", "permissions", "sidecar", "frontend", "registration", "runtime"]
          },
          "failedAt": { "type": "string", "description": "ISO 8601 timestamp" }
        },
        "required": ["pluginId", "error", "phase", "failedAt"]
      }
    },
    {
      "name": "plugin.installed",
      "description": "A new plugin has been installed",
      "schema": {
        "type": "object",
        "properties": {
          "pluginId": { "type": "string" },
          "version": { "type": "string" },
          "source": { "type": "string", "enum": ["official", "local", "third-party"] },
          "installedAt": { "type": "string" }
        },
        "required": ["pluginId", "version", "source", "installedAt"]
      }
    },
    {
      "name": "plugin.uninstalled",
      "description": "A plugin has been uninstalled",
      "schema": {
        "type": "object",
        "properties": {
          "pluginId": { "type": "string" },
          "preserveData": { "type": "boolean", "description": "Whether user chose to keep data" },
          "uninstalledAt": { "type": "string" }
        },
        "required": ["pluginId", "uninstalledAt"]
      }
    },
    {
      "name": "app.started",
      "description": "Application has started",
      "schema": {
        "type": "object",
        "properties": {
          "version": { "type": "string", "description": "Application version" },
          "startedAt": { "type": "string", "description": "ISO 8601 timestamp" },
          "pluginsLoaded": { "type": "integer", "description": "Number of plugins loaded" },
          "pluginsFailed": { "type": "integer", "description": "Number of plugins failed" }
        },
        "required": ["version", "startedAt"]
      }
    },
    {
      "name": "app.shuttingdown",
      "description": "Application is shutting down",
      "schema": {
        "type": "object",
        "properties": {
          "shutdownAt": { "type": "string", "description": "ISO 8601 timestamp" },
          "reason": { "type": "string", "description": "Shutdown reason" }
        },
        "required": ["shutdownAt"]
      }
    },
    {
      "name": "capability.changed",
      "description": "Available capabilities have changed (plugin enabled/disabled)",
      "schema": {
        "type": "object",
        "properties": {
          "added": { "type": "array", "items": { "type": "string" }, "description": "Capabilities that became available" },
          "removed": { "type": "array", "items": { "type": "string" }, "description": "Capabilities that were removed" },
          "changedAt": { "type": "string", "description": "ISO 8601 timestamp" }
        },
        "required": ["changedAt"]
      }
    }
  ]
}