{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "$id": "https://osbuild.org/schemas/osbuild2.json",

  "title": "OSBuild Manifest",
  "description": "OSBuild manifest describing a pipeline and all parameters",
  "type": "object",
  "additionalProperties": false,
  "properties": {
    "pipelines": { "$ref": "#/definitions/pipelines" },
    "sources": { "$ref": "#/definitions/sources" },
    "version": {
      "enum": ["2"]
    }
  },

  "definitions": {

    "devices": {
      "title": "Collection of devices for a stage",
      "additionalProperties": {
        "$ref": "#/definitions/device"
      }
    },

    "device": {
      "title": "Device for a stage",
      "additionalProperties": false,
      "required": ["type"],
      "properties": {
        "type": { "type": "string" },
        "parent": { "type": "string" },
        "options": {
          "type": "object",
          "additionalProperties": true
        }
      }
    },

    "inputs": {
      "title": "Collection of inputs for a stage",
      "additionalProperties": false,
      "patternProperties": {
        "^[a-zA-Z][a-zA-Z0-9_\\-\\.]{0,254}": {
          "$ref": "#/definitions/input"
        }
      }
    },

    "input": {
      "title": "Single input for a stage",
      "additionalProperties": false,
      "required": ["type", "origin", "references"],
      "properties": {
        "type": { "type": "string" },
        "origin": { "enum": ["org.osbuild.source", "org.osbuild.pipeline"] },
        "references": { "$ref": "#/definitions/reference" },
        "options": {
          "type": "object",
          "additionalProperties": true
        }
      }
    },

    "mounts": {
      "title": "Collection of mount points for a stage",
      "type": "array",
      "items": { "$ref": "#/definitions/mount"}
    },

    "mount": {
      "title": "Mount point for a stage",
      "additionalProperties": false,
      "required": ["name", "type"],
      "properties": {
        "name": { "type": "string" },
        "type": { "type": "string" },
        "source": {
          "type": "string"
        },
        "target": {
          "type": "string"
        },
        "options": {
          "type": "object",
          "additionalProperties": true
        }
      }
    },

    "pipelines": {
      "title": "Collection of pipelines to execute",
      "description": "Array of pipelines to execute one after another",
      "type": "array",
      "items": { "$ref": "#/definitions/pipeline" }
    },

    "pipeline": {
      "title": "Pipeline Description",
      "description": "Full description of a pipeline to execute",
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "name": { "type:": "string" },
        "build": { "type": "string" },
        "runner": { "type": "string" },
        "source-epoch": { "type": "integer" },
        "stages": { "$ref": "#/definitions/stages" }
      }
    },

    "reference": {
      "oneOf":[
        {
          "type": "array",
          "items": { "type": "string" }
        },{
          "type": "object",
          "additionalProperties": true
        }
      ]
    },

    "source": {
      "title": "External Source",
      "description": "External source to be passed to the pipeline",
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "items": { "$ref": "#/definitions/reference" },
        "options": {
          "type": "object",
          "additionalProperties": true
        }
      },
      "required": ["items"]
    },

    "sources": {
      "title": "Collection of External Sources",
      "description": "Collection of external sources to be passed to the pipeline",
      "type": "object",
      "additionalProperties": { "$ref": "#/definitions/source" }
    },

    "stage": {
      "title": "Pipeline Stage",
      "description": "Single stage of a pipeline executing one step",
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "type": { "type": "string" },
        "devices": { "$ref": "#/definitions/devices" },
        "inputs": {"$ref": "#/definitions/inputs" },
        "mounts": {"$ref": "#/definitions/mounts" },
        "options": {
          "type": "object",
          "additionalProperties": true
        }
      },
      "required": [ "type" ]
    },

    "stages": {
      "type": "array",
      "items": { "$ref": "#/definitions/stage" }
    }
  }
}