{
    "$schema": "https://json-schema.org/draft-04/schema#",
    "title": "Composer Package Repository",
    "type": "object",
    "oneOf": [
        { "required": [ "packages" ] },
        { "required": [ "providers" ] },
        { "required": [ "provider-includes", "providers-url" ] },
        { "required": [ "metadata-url" ] }
    ],
    "properties": {
        "packages": {
            "type": ["object", "array"],
            "description": "A hashmap of package names in the form of <vendor>/<name>.",
            "additionalProperties": { "$ref": "#/definitions/versions" }
        },
        "metadata-url": {
            "type": "string",
            "description": "Endpoint to retrieve package metadata data from, in Composer v2 format, e.g. '/p2/%package%.json'."
        },
        "available-packages": {
            "type": "array",
            "items": {
                "type": "string"
            },
            "description": "If your repository only has a small number of packages, and you want to avoid serving many 404s, specify all the package names that your repository contains here."
        },
        "available-package-patterns": {
            "type": "array",
            "items": {
                "type": "string"
            },
            "description": "If your repository only has a small number of packages, and you want to avoid serving many 404s, specify package name patterns containing wildcards (*) that your repository contains here."
        },
        "security-advisories": {
            "type": "array",
            "items": {
                "type": "object",
                "required": ["metadata", "api-url"],
                "properties": {
                    "metadata": {
                        "type": "boolean",
                        "description": "Whether metadata files contain security advisory data or whether it should always be queried using the API URL."
                    },
                    "api-url": {
                        "type": "string",
                        "description": "Endpoint to call to retrieve security advisories data."
                    }
                }
            }
        },
        "metadata-changes-url": {
            "type": "string",
            "description": "Endpoint to retrieve package metadata updates from. This should receive a timestamp since last call to be able to return new changes. e.g. '/metadata/changes.json'."
        },
        "providers-api": {
            "type": "string",
            "description": "Endpoint to retrieve package names providing a given name from, e.g. '/providers/%package%.json'."
        },
        "notify-batch": {
            "type": "string",
            "description": "Endpoint to call after multiple packages have been installed, e.g. '/downloads/'."
        },
        "search": {
            "type": "string",
            "description": "Endpoint that provides search capabilities, e.g. '/search.json?q=%query%&type=%type%'."
        },
        "list": {
            "type": "string",
            "description": "Endpoint that provides a full list of packages present in the repository. It should accept an optional `?filter=xx` query param, which can contain `*` as wildcards matching any substring. e.g. '/list.json'."
        },
        "warnings": {
            "type": "array",
            "items": {
                "type": "object",
                "required": ["message", "versions"],
                "properties": {
                    "message": {
                        "type": "string",
                        "description": "A message that will be output by Composer as a warning when this source is consulted."
                    },
                    "versions": {
                        "type": "string",
                        "description": "A version constraint to limit to which Composer versions the warning should be shown."
                    }
                }
            }
        },
        "infos": {
            "type": "array",
            "items": {
                "type": "object",
                "required": ["message", "versions"],
                "properties": {
                    "message": {
                        "type": "string",
                        "description": "A message that will be output by Composer as info when this source is consulted."
                    },
                    "versions": {
                        "type": "string",
                        "description": "A version constraint to limit to which Composer versions the info should be shown."
                    }
                }
            }
        },
        "providers-url": {
            "type": "string",
            "description": "DEPRECATED: Endpoint to retrieve provider data from, e.g. '/p/%package%$%hash%.json'."
        },
        "provider-includes": {
            "type": "object",
            "description": "DEPRECATED: A hashmap of provider listings.",
            "additionalProperties": { "$ref": "#/definitions/provider" }
        },
        "providers": {
            "type": "object",
            "description": "DEPRECATED: A hashmap of package names in the form of <vendor>/<name>.",
            "additionalProperties": { "$ref": "#/definitions/provider" }
        },
        "warning": {
            "type": "string",
            "description": "DEPRECATED: A message that will be output by Composer as a warning when this source is consulted."
        },
        "warning-versions": {
            "type": "string",
            "description": "DEPRECATED: A version constraint to limit to which Composer versions the warning should be shown."
        },
        "info": {
            "type": "string",
            "description": "DEPRECATED: A message that will be output by Composer as a info when this source is consulted."
        },
        "info-versions": {
            "type": "string",
            "description": "DEPRECATED: A version constraint to limit to which Composer versions the info should be shown."
        }
    },
    "definitions": {
        "versions": {
            "type": "object",
            "description": "A hashmap of versions and their metadata.",
            "additionalProperties": { "$ref": "#/definitions/version" }
        },
        "version": {
            "type": "object",
            "oneOf": [
                { "$ref": "#/definitions/package" },
                { "$ref": "#/definitions/metapackage" }
            ]
        },
        "package-base": {
            "properties": {
                "name": { "type": "string" },
                "type": { "type": "string" },
                "version": { "type": "string" },
                "version_normalized": {
                    "type": "string",
                    "description": "Normalized version, optional but can save computational time on client side."
                },
                "autoload": { "type": "object" },
                "require": { "type": "object" },
                "replace": { "type": "object" },
                "conflict": { "type": "object" },
                "provide": { "type": "object" },
                "time": { "type": "string" }
            },
            "additionalProperties": true
        },
        "package": {
            "allOf": [
                { "$ref": "#/definitions/package-base" },
                {
                    "properties": {
                        "dist": { "type": "object" },
                        "source": { "type": "object" }
                    }
                },
                { "oneOf": [
                    { "required": [ "name", "version", "source" ] },
                    { "required": [ "name", "version", "dist" ] }
                ] }
            ]
        },
        "metapackage": {
            "allOf": [
                { "$ref": "#/definitions/package-base" },
                {
                    "properties": {
                        "type": { "type": "string", "enum": [ "metapackage" ] }
                    },
                    "required": [ "name", "version", "type" ]
                }
            ]
        },
        "provider": {
            "type": "object",
            "properties": {
                "sha256": {
                    "type": "string",
                    "description": "Hash value that can be used to validate the resource."
                }
            }
        }
    }
}