{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://raw.githubusercontent.com/minikin/cargo-crap/main/schemas/delta-v2.json",
  "title": "cargo-crap delta report (v2)",
  "description": "Wire format produced by `cargo crap --format json --baseline FILE`. v2 adds the `moved` status and the optional `previous_file` field for entries that were paired by name across files (spec 13).",
  "type": "object",
  "required": ["version", "entries", "removed"],
  "additionalProperties": false,
  "properties": {
    "$schema": {
      "type": "string",
      "format": "uri"
    },
    "version": {
      "type": "string",
      "pattern": "^[0-9]+\\.[0-9]+\\.[0-9]+"
    },
    "entries": {
      "type": "array",
      "description": "Per-function entries from the current run, each annotated with its delta against the baseline.",
      "items": { "$ref": "#/definitions/DeltaEntry" }
    },
    "removed": {
      "type": "array",
      "description": "Functions present in the baseline but absent from the current run.",
      "items": { "$ref": "#/definitions/RemovedEntry" }
    }
  },
  "definitions": {
    "DeltaEntry": {
      "type": "object",
      "description": "A `CrapEntry` (flattened) plus delta-mode fields.",
      "required": [
        "file",
        "function",
        "line",
        "cyclomatic",
        "coverage",
        "crap",
        "baseline_crap",
        "delta",
        "status"
      ],
      "additionalProperties": false,
      "properties": {
        "file": { "type": "string" },
        "function": { "type": "string" },
        "line": { "type": "integer", "minimum": 1 },
        "cyclomatic": { "type": "number", "minimum": 1 },
        "coverage": {
          "type": ["number", "null"],
          "minimum": 0,
          "maximum": 100
        },
        "crap": { "type": "number", "minimum": 1 },
        "crate": { "type": "string" },
        "baseline_crap": {
          "type": ["number", "null"],
          "description": "CRAP score from the baseline run; null when this function is new."
        },
        "delta": {
          "type": ["number", "null"],
          "description": "current.crap - baseline_crap; null when this function is new."
        },
        "status": {
          "type": "string",
          "enum": ["regressed", "improved", "new", "unchanged", "moved"],
          "description": "Change category relative to the baseline. `moved` is reported when a function was paired across files by name (second-pass matcher) AND its score did not change beyond the epsilon. Score-changed moves use `regressed` / `improved` instead, with `previous_file` set."
        },
        "previous_file": {
          "type": "string",
          "description": "Baseline location when this entry was paired across files. Omitted when the entry was matched on the exact (file, function) pair (the common case) or is genuinely new."
        }
      }
    },
    "RemovedEntry": {
      "type": "object",
      "required": ["function", "file", "baseline_crap"],
      "additionalProperties": false,
      "properties": {
        "function": { "type": "string" },
        "file": { "type": "string" },
        "baseline_crap": {
          "type": "number",
          "minimum": 1,
          "description": "CRAP score the function had in the baseline."
        }
      }
    }
  }
}