{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://smartergpt.dev/schemas/harvest-bundle.v1.schema.json",
  "title": "HarvestBundle",
  "description": "D0 output: normalized, pinned entities from external sources",
  "type": "object",
  "required": ["schemaVersion", "phase", "timestamp", "inputDigest", "bundle", "outputDigest"],
  "properties": {
    "schemaVersion": {
      "type": "string",
      "const": "1.0.0"
    },
    "phase": {
      "type": "string",
      "const": "D0"
    },
    "timestamp": {
      "type": "string",
      "format": "date-time",
      "description": "ISO 8601 UTC timestamp"
    },
    "inputDigest": {
      "type": "string",
      "pattern": "^sha256:[a-f0-9]{64}$",
      "description": "SHA256 digest of input parameters"
    },
    "bundle": {
      "$ref": "#/$defs/Bundle"
    },
    "outputDigest": {
      "type": "string",
      "pattern": "^sha256:[a-f0-9]{64}$",
      "description": "SHA256 digest of bundle content"
    }
  },
  "$defs": {
    "Bundle": {
      "type": "object",
      "required": ["repository", "harvestedAt"],
      "properties": {
        "repository": {
          "$ref": "#/$defs/Repository"
        },
        "pullRequests": {
          "type": "array",
          "items": { "$ref": "#/$defs/PullRequest" }
        },
        "issues": {
          "type": "array",
          "items": { "$ref": "#/$defs/Issue" }
        },
        "harvestedAt": {
          "type": "string",
          "format": "date-time"
        }
      }
    },
    "Repository": {
      "type": "object",
      "required": ["owner", "name", "defaultBranch", "defaultBranchSha"],
      "properties": {
        "owner": { "type": "string" },
        "name": { "type": "string" },
        "defaultBranch": { "type": "string" },
        "defaultBranchSha": {
          "type": "string",
          "pattern": "^[a-f0-9]{40}$",
          "description": "Pinned SHA of default branch HEAD"
        }
      }
    },
    "PullRequest": {
      "type": "object",
      "required": ["number", "title", "state", "headSha", "baseSha"],
      "properties": {
        "number": { "type": "integer" },
        "title": { "type": "string" },
        "state": { "type": "string", "enum": ["open", "closed", "merged"] },
        "draft": { "type": "boolean" },
        "headSha": {
          "type": "string",
          "pattern": "^[a-f0-9]{40}$",
          "description": "Pinned SHA of PR head"
        },
        "baseSha": {
          "type": "string",
          "pattern": "^[a-f0-9]{40}$",
          "description": "Pinned SHA of PR base"
        },
        "mergeBaseSha": {
          "oneOf": [
            { "type": "string", "pattern": "^[a-f0-9]{40}$" },
            { "type": "string", "enum": ["unknown", "unavailable"] }
          ],
          "description": "Pinned SHA of merge base, or 'unknown'/'unavailable'"
        },
        "author": { "type": "string" },
        "labels": {
          "type": "array",
          "items": { "type": "string" }
        },
        "ciStatus": {
          "oneOf": [
            { "type": "string", "enum": ["pass", "fail", "pending"] },
            { "type": "string", "enum": ["unknown", "unavailable"] }
          ],
          "description": "CI status or 'unknown'/'unavailable'"
        },
        "reviewStatus": {
          "oneOf": [
            { "type": "string", "enum": ["approved", "changes_requested", "pending", "none"] },
            { "type": "string", "enum": ["unknown", "unavailable"] }
          ]
        },
        "conflictStatus": {
          "oneOf": [
            { "type": "string", "enum": ["clean", "conflicted"] },
            { "type": "string", "enum": ["unknown", "unavailable"] }
          ]
        },
        "updatedAt": {
          "type": "string",
          "format": "date-time"
        },
        "body": {
          "oneOf": [
            { "type": "string" },
            { "type": "string", "enum": ["truncated"] }
          ]
        },
        "changedFiles": {
          "oneOf": [
            { "type": "integer" },
            { "type": "string", "enum": ["unknown", "unavailable"] }
          ]
        },
        "additions": {
          "oneOf": [
            { "type": "integer" },
            { "type": "string", "enum": ["unknown", "unavailable"] }
          ]
        },
        "deletions": {
          "oneOf": [
            { "type": "integer" },
            { "type": "string", "enum": ["unknown", "unavailable"] }
          ]
        }
      }
    },
    "Issue": {
      "type": "object",
      "required": ["number", "title", "state", "updatedAt"],
      "properties": {
        "number": { "type": "integer" },
        "title": { "type": "string" },
        "state": { "type": "string", "enum": ["open", "closed"] },
        "author": { "type": "string" },
        "labels": {
          "type": "array",
          "items": { "type": "string" }
        },
        "updatedAt": {
          "type": "string",
          "format": "date-time",
          "description": "Pinned timestamp for issue state"
        },
        "body": {
          "oneOf": [
            { "type": "string" },
            { "type": "string", "enum": ["truncated"] }
          ]
        },
        "assignees": {
          "type": "array",
          "items": { "type": "string" }
        }
      }
    }
  }
}