{
    "$schema": "https://json-schema.org/draft/2019-09/schema",
    "$id": "./courses.schema.json",
    "title": "Pingers",
    "description": "The data store for the pinger definitions for the bot",
    "type": "object",
    "definitions": {
        "commonProps": {
            "type": "object",
            "properties": {
                "subj": { "type": "string" },
                "crsno": { "type": "string" },
                "metadata": {
                    "type": "object",
                    "properties": {
                        "user": {
                            "type": "object",
                            "patternProperties": {
                                "^\\d+$": {
                                    "$comment": "key is user ID, value is sections to ping for",
                                    "type": "object",
                                    "patternProperties": {
                                        "^\\w{4} \\d{3}[A-Z]? \\w{3}$": {
                                            "$comment": "key is section ID, value is status types to ping for",
                                            "type": "array",
                                            "items": {
                                                "type": "string",
                                                "enum": ["Available", "Restricted", "Blocked", "Full"]
                                            }
                                        }
                                    },
                                    "additionalProperties": false
                                },
                                "additionalProperties": false
                            }
                        },
                        "courses": {
                            "type": "array",
                            "items": {
                                "type": "string",
                                "$comment": "same pattern as section ID in metadata.user",
                                "pattern": "^\\w{4} \\d{3}[A-Z]? \\w{3}$"
                            }
                            
                        }
                    }
                },
                "sessyr": { "type": "string", "pattern": "^\\d{4}$" },
                "sesscd": { "type": "string", "pattern": "^[WS]$" }
            },
            "$comment": "technically sessyr and sesscd is not required, but in practice it will get populated during add_ping",
            "required": [ "subj", "crsno", "metadata" ]
        },
        "searchModeProps": {
            "allOf": [ { "$ref": "#/definitions/commonProps" } ],
            "type": "object",
            "$comment": "all of the properties are technically optional, but in practice it is always populated; days are separate keys each, but technically should all be true or else it wouldn't be defined even though false is also accepted",
            "properties": {
                "credit": { "type": "string" },
                "sTime": { "type": "string" },
                "eTime": { "type": "string" },
                "actv": { "type": "string" },
                "term": { "type": "string" }
            },
            "patternProperties": {
                "^DAY[1-7]$": { "type": "boolean" }
            },
            "not": { "required": ["section"] }
        },
        "sectionModeProps": {
            "allOf": [ { "$ref": "#/definitions/commonProps" } ],
            "type": "object",
            "properties": {
                "section": { 
                    "oneOf": [
                        { "type": "string", "$comment": "specifies the section to filter with; should be transient and change to true after add_course" },
                        { "const": true, "$comment": "signify to pinger it is in section mode" }
                    ]
                }
            },
            "required": [ "section" ]
        }
    },
    "patternProperties": {
        "^.*$": {
            "oneOf": [
                { "$ref": "#/definitions/searchModeProps" },
                { "$ref": "#/definitions/sectionModeProps" }
            ],
            "$comment": "we want a rigid schema so don't allow additional properties (unevaluated to allow for proper composition)",
            "unevaluatedProperties": false
        }
    }
}