{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "program": {
      "$id": "/properties/program",
      "type": "object",
      "title": "Program information",
      "description": "Information required to run the program",
      "required": [
        "binary"
      ],
      "properties": {
        "binary": {
          "$id": "/properties/program/properties/binary",
          "type": "string",
          "title": "Program binary",
          "description": "The entry point for an executable",
          "examples": [
            "bin/app"
          ]
        },
        "args": {
          "$id": "/properties/program/properties/args",
          "type": "array",
          "title": "Program arguments",
          "description": "The arguments to provide to an executable",
          "items": {
            "type": "string"
          },
          "minItems": 1,
          "examples": [
            "--verbose"
          ]
        },
        "env": {
          "$id": "/properties/program/properties/env",
          "type": "object",
          "title": "Environment variables",
          "description": "Environment variables to provide to an executable",
          "items": {
            "type": "string"
          },
          "minItems": 1,
          "examples": [
            {
              "VERBOSITY": "1"
            }
          ]
        }
      }
    },
    "use": {
      "$id": "/properties/use",
      "type": "array",
      "title": "Used capabilities",
      "description": "Capabilities that will be installed in this component's namespace",
      "uniqueItems": true,
      "items": {
        "$id": "/properties/use/items",
        "type": "object",
        "oneOf": [
          {
            "required": [ "service" ]
          },
          {
            "required": [ "directory" ]
          }
        ],
        "properties": {
          "service": {
            "$id": "/properties/use/items/properties/service",
            "type": "string",
            "title": "Used service source path",
            "description": "The path under which a service is offered to this component",
            "examples": [
              "/svc/fuchsia.logger.Log"
            ]
          },
          "directory": {
            "$id": "/properties/use/items/properties/directory",
            "type": "string",
            "title": "Used directory source path",
            "description": "The path under which a directory is offered to this component",
            "examples": [
              "/data/assets/widgets"
            ]
          },
          "as": {
            "$id": "/properties/use/items/properties/as",
            "type": "string",
            "title": "Used capability target path",
            "description": "The path to which the capability will be installed in the component's incoming namespace. Defaults to \"service\"/\"directory\".",
            "examples": [
              "/svc/fuchsia.logger.Log"
            ]
          }
        }
      }
    },
    "expose": {
      "$id": "/properties/expose",
      "type": "array",
      "title": "Capabilities exposed",
      "description": "Capabilities exposed by this component to its containing realm",
      "uniqueItems": true,
      "items": {
        "$id": "/properties/expose/items",
        "type": "object",
        "required": [
          "from"
        ],
        "oneOf": [
          {
            "required": [ "service" ]
          },
          {
            "required": [ "directory" ]
          }
        ],
        "properties": {
          "service": {
            "$id": "/properties/expose/items/properties/service",
            "type": "string",
            "title": "Exposed service source path",
            "description": "The path to the service being exposed. This is either a path in this component's outgoing namespace (if from \"self\"), or the path by which the service was exposed by the child (if from \"#$CHILD\").",
            "examples": [
              "/svc/fuchsia.ui.Scenic"
            ]
          },
          "directory": {
            "$id": "/properties/expose/items/properties/directory",
            "type": "string",
            "title": "Exposed directory source path",
            "description": "The path to the directory being exposed. This is either a path in this component's outgoing namespace (if from \"self\"), or the path by which the directory was exposed by the child (if from \"#$CHILD\").",
            "examples": [
              "/data/assets/widgets"
            ]
          },
          "from": {
            "$id": "/properties/expose/items/properties/from",
            "type": "string",
            "title": "Exposed capability source component",
            "pattern": "^(self|#[a-zA-z0-9_-]+)$",
            "description": "The component which has the capability to expose. Either \"self\" or \"#$CHILD\".",
            "examples": [
              "self",
              "#scenic"
            ]
          },
          "as": {
            "$id": "/properties/expose/items/properties/as",
            "type": "string",
            "title": "Exposed capability target path",
            "description": "The path under which the capability will be exposed. Defaults to \"service\"/\"directory\"",
            "examples": [
              "/svc/fuchsia.logger.Log"
            ]
          }
        }
      }
    },
    "offer": {
      "$id": "/properties/offer",
      "type": "array",
      "title": "Offered capabilitys",
      "description": "Capabilities offered by this component to its children",
      "uniqueItems": true,
      "items": {
        "$id": "/properties/offer/items",
        "type": "object",
        "required": [
          "from",
          "targets"
        ],
        "oneOf": [
          {
            "required": [ "service" ]
          },
          {
            "required": [ "directory" ]
          }
        ],
        "properties": {
          "service": {
            "$id": "/properties/offer/items/properties/service",
            "type": "string",
            "title": "Offered service source path",
            "description": "The path to the service being offered. This is either a path in this component's namespace (if from \"self\"), or the path by which the service was exposed or offered from another component (if from \"realm\" or \"#$CHILD\").",
            "examples": [
              "/svc/fuchsia.ui.Scenic"
            ]
          },
          "directory": {
            "$id": "/properties/offer/items/properties/directory",
            "type": "string",
            "title": "Offered directory source path",
            "description": "The path to the directory being offered. This is either a path in this component's outgoing namespace (if from \"self\"), or the path by which the directory was exposed or offered from another component (if from \"realm\" or \"#$CHILD\").",
            "examples": [
              "/svc/fuchsia.ui.Scenic"
            ]
          },
          "from": {
            "$id": "/properties/offer/items/properties/from",
            "type": "string",
            "title": "Offered capability source component",
            "description": "The component which has the capability to offer. Either \"realm\", \"self\" or \"#$CHILD\".",
            "pattern": "^(realm|self|#[A-Za-z0-9_-]+)$",
            "examples": [
              "realm",
              "self",
              "#scenic"
            ]
          },
          "targets": {
            "$id": "/properties/offer/items/properties/targets",
            "type": "array",
            "title": "Offered capability targets",
            "description": "The components the capability is being offered to",
            "uniqueItems": true,
            "minItems": 1,
            "items": {
              "$id": "/properties/offer/items/properties/targets/items",
              "type": "object",
              "required": [
                "to"
              ],
              "properties": {
                "to": {
                  "$id": "/properties/offer/items/properties/targets/items/properties/to",
                  "type": "string",
                  "title": "Offered capability target component",
                  "description": "The child component to which the capability is being offered, with the syntax \"#$CHILD\".",
                  "pattern": "^#[a-zA-Z0-9_-]+$",
                  "examples": [
                    "#scenic"
                  ]
                },
                "as": {
                  "$id": "/properties/offer/items/properties/targets/items/properties/as",
                  "type": "string",
                  "title": "Offered capability target path",
                  "description": "The path by which the capability will be offered. The path is either a path in this component's namespace (if from \"self\"), or the path by which the capability was exposed or offered from another component (if from \"realm\" or \"#$CHILD\").",
                  "examples": [
                    "/data/assets/widgets",
                    "/svc/fuchsia.ui.Scenic"
                  ]
                }
              }
            }
          }
        }
      }
    },
    "children": {
      "$id": "/properties/children",
      "type": "array",
      "title": "Child components",
      "description": "The children of this component, including name and launch information",
      "uniqueItems": true,
      "items": {
        "$id": "/properties/children/items",
        "type": "object",
        "required": [
          "name",
          "uri"
        ],
        "properties": {
          "name": {
            "$id": "/properties/children/items/properties/name",
            "type": "string",
            "title": "Child component name",
            "description": "The parent's local name for the child",
            "pattern": "^[a-zA-z0-9_-]+$",
            "examples": [
              "echo2_server",
              "System-logger"
            ]
          },
          "uri": {
            "$id": "/properties/children/items/properties/uri",
            "type": "string",
            "title": "Child component URI",
            "description": "The URI that identifies the child component.",
            "examples": [
              "fuchsia-pkg://fuchsia.com/echo_server_cpp#meta/echo_server.cml"
            ]
          }
        }
      }
    },
    "facets": {
      "$id": "/properties/facets",
      "type": "object",
      "title": "Facets",
      "description": "Freeform dictionary containing third-party metadata"
    }
  }
}