{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://ayagmar.github.io/llm-usage-metrics/report-prune.v1.schema.json",
  "title": "llm-usage-metrics prune report output (v1)",
  "description": "Envelope and payload for prune --json output.",
  "allOf": [
    {
      "$ref": "https://ayagmar.github.io/llm-usage-metrics/report-common.v1.schema.json#/$defs/envelope"
    }
  ],
  "properties": {
    "report": { "const": "prune" },
    "data": {
      "description": "Prune payload: deletion candidates and the run summary.",
      "type": "object",
      "properties": {
        "candidates": {
          "description": "Departed files selected for deletion.",
          "type": "array",
          "items": { "$ref": "#/$defs/candidate" }
        },
        "summary": { "$ref": "#/$defs/summary" }
      },
      "required": ["candidates", "summary"],
      "additionalProperties": false
    }
  },
  "$defs": {
    "candidate": {
      "description": "One departed file selected by the prune filters.",
      "type": "object",
      "properties": {
        "source": { "description": "Source id the file belonged to.", "type": "string" },
        "filePath": { "description": "Absolute path of the departed file.", "type": "string" },
        "eventCount": {
          "description": "Events stored for the file.",
          "type": "integer",
          "minimum": 0
        },
        "newestTimestamp": {
          "description": "ISO timestamp of the file's newest event; omitted for empty files.",
          "type": "string"
        },
        "reasons": {
          "description": "Why the file matched the selectors.",
          "type": "array",
          "items": { "type": "string", "enum": ["suppressed", "aged"] }
        }
      },
      "required": ["source", "filePath", "eventCount", "reasons"],
      "additionalProperties": false
    },
    "sizeSnapshot": {
      "description": "Store size on disk, including WAL and SHM files.",
      "type": "object",
      "properties": {
        "databaseBytes": { "description": "Main database size.", "type": "integer", "minimum": 0 },
        "walBytes": { "description": "Write-ahead log size.", "type": "integer", "minimum": 0 },
        "shmBytes": { "description": "Shared-memory file size.", "type": "integer", "minimum": 0 },
        "totalBytes": { "description": "Sum of the three files.", "type": "integer", "minimum": 0 }
      },
      "required": ["databaseBytes", "walBytes", "shmBytes", "totalBytes"],
      "additionalProperties": false
    },
    "summary": {
      "description": "Counts and size effects of the (dry or applied) run.",
      "type": "object",
      "properties": {
        "storePath": { "description": "Path of the event store.", "type": "string" },
        "applied": {
          "description": "True when --apply deleted the candidates.",
          "type": "boolean"
        },
        "candidateFileCount": {
          "description": "Files selected for deletion.",
          "type": "integer",
          "minimum": 0
        },
        "candidateEventCount": {
          "description": "Events inside the selected files.",
          "type": "integer",
          "minimum": 0
        },
        "deletedFileCount": {
          "description": "Files actually deleted; applied runs only.",
          "type": "integer",
          "minimum": 0
        },
        "deletedEventCount": {
          "description": "Events actually deleted; applied runs only.",
          "type": "integer",
          "minimum": 0
        },
        "sizeBefore": { "$ref": "#/$defs/sizeSnapshot" },
        "sizeAfter": { "$ref": "#/$defs/sizeSnapshot" },
        "reclaimedBytes": {
          "description": "Bytes reclaimed by the applied run's vacuum.",
          "type": "integer",
          "minimum": 0
        }
      },
      "required": ["storePath", "applied", "candidateFileCount", "candidateEventCount"],
      "additionalProperties": false
    }
  }
}