{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "gno://schemas/browser-clip-preview@1.0",
  "title": "Browser Clip Preview",
  "type": "object",
  "additionalProperties": false,
  "required": ["schemaVersion", "preview", "provenance", "plan"],
  "properties": {
    "schemaVersion": { "const": "1.0" },
    "preview": {
      "type": "object",
      "additionalProperties": false,
      "required": ["body", "digest", "source", "destination", "tags"],
      "properties": {
        "body": { "type": "string" },
        "digest": { "type": "string", "pattern": "^[a-f0-9]{64}$" },
        "source": { "$ref": "#/definitions/source" },
        "destination": {
          "$ref": "gno://schemas/browser-clip@1.0#/properties/destination"
        },
        "egressLineage": { "$ref": "#/definitions/egressLineage" },
        "tags": {
          "type": "array",
          "items": { "type": "string" }
        }
      }
    },
    "provenance": {
      "$ref": "gno://schemas/browser-clip@1.0#/definitions/provenance"
    },
    "plan": {
      "type": "object",
      "additionalProperties": false,
      "required": ["collection", "relPath", "outcome", "provenanceConflict"],
      "properties": {
        "collection": { "type": "string", "minLength": 1 },
        "relPath": { "type": "string", "minLength": 1 },
        "outcome": {
          "enum": [
            "created",
            "opened_existing",
            "created_with_suffix",
            "overwritten",
            "conflict"
          ]
        },
        "provenanceConflict": { "type": "boolean" }
      }
    }
  },
  "definitions": {
    "egressLineage": {
      "type": "object",
      "additionalProperties": false,
      "required": ["effectivePolicy", "digest", "sources"],
      "properties": {
        "effectivePolicy": { "enum": ["local_only", "lan", "remote"] },
        "digest": { "type": "string", "pattern": "^[a-f0-9]{64}$" },
        "sources": {
          "type": "array",
          "minItems": 1,
          "uniqueItems": true,
          "items": {
            "type": "object",
            "additionalProperties": false,
            "required": ["collection", "policy", "source"],
            "properties": {
              "collection": {
                "type": "string",
                "pattern": "^[a-z0-9][a-z0-9_-]{0,63}$"
              },
              "policy": { "enum": ["local_only", "lan", "remote"] },
              "source": {
                "enum": ["explicit", "config_default", "legacy_default"]
              }
            }
          }
        }
      }
    },
    "source": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "kind",
        "title",
        "url",
        "observedAt",
        "capturedAt",
        "browserClip"
      ],
      "properties": {
        "kind": { "const": "web" },
        "title": { "type": "string" },
        "url": { "type": "string", "format": "uri" },
        "author": { "type": "string" },
        "observedAt": { "type": "string", "format": "date-time" },
        "capturedAt": { "type": "string", "format": "date-time" },
        "canonicalUrl": { "type": "string", "format": "uri" },
        "site": { "type": "string" },
        "publishedAt": {
          "oneOf": [
            { "type": "string", "format": "date" },
            { "type": "string", "format": "date-time" }
          ]
        },
        "browserClip": {
          "$ref": "gno://schemas/browser-clip@1.0#/definitions/provenance"
        }
      }
    }
  }
}