{
  "additionalProperties": false,
  "type": "object",
  "properties": {
    "server": {
      "additionalProperties": false,
      "type": "object",
      "properties": {
        "listen": {
          "additionalProperties": false,
          "type": "object",
          "properties": {
            "host": {
              "type": "string"
            },
            "port": {
              "anyOf": [
                {
                  "maximum": 65535,
                  "minimum": 0,
                  "type": "integer"
                },
                {
                  "pattern": "^\\$\\{[^}]+\\}$",
                  "type": "string"
                }
              ]
            }
          }
        },
        "logging": {
          "additionalProperties": false,
          "type": "object",
          "properties": {
            "console": {
              "additionalProperties": false,
              "type": "object",
              "properties": {
                "level": {
                  "anyOf": [
                    {
                      "anyOf": [
                        {
                          "const": "trace",
                          "type": "string"
                        },
                        {
                          "const": "debug",
                          "type": "string"
                        },
                        {
                          "const": "info",
                          "type": "string"
                        },
                        {
                          "const": "warn",
                          "type": "string"
                        },
                        {
                          "const": "error",
                          "type": "string"
                        },
                        {
                          "const": "fatal",
                          "type": "string"
                        }
                      ]
                    },
                    {
                      "pattern": "^\\$\\{[^}]+\\}$",
                      "type": "string"
                    }
                  ]
                }
              }
            },
            "file": {
              "additionalProperties": false,
              "type": "object",
              "properties": {
                "level": {
                  "anyOf": [
                    {
                      "anyOf": [
                        {
                          "const": "trace",
                          "type": "string"
                        },
                        {
                          "const": "debug",
                          "type": "string"
                        },
                        {
                          "const": "info",
                          "type": "string"
                        },
                        {
                          "const": "warn",
                          "type": "string"
                        },
                        {
                          "const": "error",
                          "type": "string"
                        },
                        {
                          "const": "fatal",
                          "type": "string"
                        }
                      ]
                    },
                    {
                      "pattern": "^\\$\\{[^}]+\\}$",
                      "type": "string"
                    }
                  ]
                },
                "path": {
                  "minLength": 1,
                  "type": "string"
                },
                "rotation": {
                  "additionalProperties": false,
                  "type": "object",
                  "properties": {
                    "frequency": {
                      "anyOf": [
                        {
                          "anyOf": [
                            {
                              "const": "hourly",
                              "type": "string"
                            },
                            {
                              "const": "daily",
                              "type": "string"
                            },
                            {
                              "const": "weekly",
                              "type": "string"
                            }
                          ]
                        },
                        {
                          "pattern": "^\\$\\{[^}]+\\}$",
                          "type": "string"
                        }
                      ]
                    },
                    "maxFiles": {
                      "anyOf": [
                        {
                          "minimum": 1,
                          "type": "integer"
                        },
                        {
                          "pattern": "^\\$\\{[^}]+\\}$",
                          "type": "string"
                        }
                      ]
                    },
                    "size": {
                      "anyOf": [
                        {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "minimum": 0,
                              "type": "integer"
                            }
                          ]
                        },
                        {
                          "pattern": "^\\$\\{[^}]+\\}$",
                          "type": "string"
                        }
                      ]
                    }
                  }
                }
              }
            },
            "level": {
              "anyOf": [
                {
                  "anyOf": [
                    {
                      "const": "trace",
                      "type": "string"
                    },
                    {
                      "const": "debug",
                      "type": "string"
                    },
                    {
                      "const": "info",
                      "type": "string"
                    },
                    {
                      "const": "warn",
                      "type": "string"
                    },
                    {
                      "const": "error",
                      "type": "string"
                    },
                    {
                      "const": "fatal",
                      "type": "string"
                    }
                  ]
                },
                {
                  "pattern": "^\\$\\{[^}]+\\}$",
                  "type": "string"
                }
              ]
            }
          }
        },
        "storage": {
          "additionalProperties": false,
          "type": "object",
          "properties": {
            "dataDir": {
              "type": "string"
            }
          }
        }
      }
    },
    "variables": {
      "type": "object",
      "patternProperties": {
        "^[a-zA-Z_][a-zA-Z0-9_]*$": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "number"
            },
            {
              "type": "boolean"
            }
          ]
        }
      }
    }
  },
  "$id": "https://app.local/config.schema.json",
  "$schema": "http://json-schema.org/draft-07/schema#"
}