{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "GovCy Express Service Config Schema",
  "description": "Schema for the configuration of an Express-based service that uses @gov-cy/govcy-frontend-renderer to dynamically render forms.",
  "type": "object",
  "$defs": {
    "multilang": {
      "type": "object",
      "properties": {
        "el": { "type": "string" },
        "en": { "type": "string" },
        "tr": { "type": "string" }
      }, 
      "additionalProperties": false
    },
    "govcyElementType": {
      "type": "string",
      "enum": [
        "backLink",
        "button",
        "checkboxes",
        "dateInput",
        "datePicker",
        "details",
        "errorMessage",
        "errorSummary",
        "fieldset",
        "fileInput",
        "fileView",
        "form",
        "formControl",
        "hint",
        "htmlElement",
        "label",
        "legend",
        "markdown",
        "panel",
        "progressList",
        "radios",
        "select",
        "stepByStepStatic",
        "summaryList",
        "table",
        "tag",
        "taskList",
        "textElement",
        "textArea",
        "textInput",
        "userName",
        "warning"
      ]
    },
    "govcyElement": {
      "type": "object",
      "properties": {
        "element": {
          "$ref": "#/$defs/govcyElementType"
        },
        "params": {
          "type": "object"
        },
        "validations": {
          "type": "array",
          "items": {
            "type": "object",
            "properties": {
              "check": {
                "type": "string"
              },
              "params": {
                "type": "object"
              }
            }
          }
        },
        "conditionalElements": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/govcyElement"
          }
        }
      },
      "required": [
        "element"
      ],
      "not": {
        "properties": {
          "element": {
            "const": "form"
          }
        }
      }
    },
    "govcyFormElement": {
      "type": "object",
      "properties": {
        "element": {
          "const": "form"
        },
        "params": {
          "type": "object",
          "properties": {
            "elements": {
              "type": "array",
              "minItems": 1,
              "items": {
                "$ref": "#/$defs/govcyElement"
              },
              "contains": {
                "type": "object",
                "properties": {
                  "element": {
                    "const": "button"
                  }
                },
                "required": [
                  "element"
                ]
              }
            }
          },
          "required": [
            "elements"
          ]
        }
      },
      "required": [
        "element",
        "params"
      ]
    }
  },
  "properties": {
    "site": {
      "type": "object",
      "properties": {
        "id": {
          "type": "string"
        },
        "lang": {
          "type": "string"
        },
        "homeRedirectPage": { "$ref": "#/$defs/multilang" },
        "languages": {
          "type": "array",
          "items": {
            "type": "object",
            "properties": {
              "code": {
                "type": "string"
              },
              "label": {
                "type": "string"
              },
              "alt": {
                "type": "string"
              },
              "href": {
                "type": "string"
              }
            },
            "required": [
              "code",
              "label",
              "alt",
              "href"
            ]
          }
        },
        "footerLinks": {
          "type": "array",
          "items": {
            "type": "object",
            "properties": {
              "label": { "$ref": "#/$defs/multilang" },
              "href": {
                "type": "string"
              }
            },
            "required": [
              "label",
              "href"
            ]
          }
        },
        "copyrightText": { "$ref": "#/$defs/multilang" },
        "menu": { "$ref": "#/$defs/multilang" },
        "title": { "$ref": "#/$defs/multilang" },
        "headerTitle": {
          "type": "object",
          "properties": {
            "title": { "$ref": "#/$defs/multilang" },
            "href": { "$ref": "#/$defs/multilang" }
          },
          "required": [
            "title"
          ]
        },
        "description": { "$ref": "#/$defs/multilang" },
        "url": {
          "type": "string"
        },
        "matomo": {
          "type": "object",
          "properties": {
            "url": {
              "type": "string"
            },
            "siteId": {
              "type": "string"
            }
          }
        },
        "isTesting": {
          "type": "boolean"
        },
        "cdn": {
          "type": "object",
          "properties": {
            "dist": {
              "type": "string"
            },
            "cssIntegrity": {
              "type": "string"
            },
            "jsIntegrity": {
              "type": "string"
            }
          }
        },
        "submissionDataVersion": {
          "type": "string"
        },
        "rendererVersion": {
          "type": "string"
        },
        "designSystemsVersion": {
          "type": "string"
        },
        "eligibilityAPIEndpoints": {
          "type": "array",
          "items": {
            "type": "object",
            "properties": {
              "url": {
                "type": "string"
              },
              "method": {
                "type": "string",
                "enum": [
                  "GET",
                  "POST"
                ]
              },
              "clientKey": {
                "type": "string"
              },
              "serviceId": {
                "type": "string"
              },
              "dsfgtwApiKey": {
                "type": "string"
              },
              "cashingTimeoutMinutes": {
                "type": [
                  "integer",
                  "string",
                  "null"
                ]
              },
              "params": {
                "type": "object"
              },
              "response": {
                "type": "object",
                "properties": {
                  "errorResponse": {
                    "type": "object",
                    "additionalProperties": {
                      "type": "object",
                      "properties": {
                        "error": {
                          "type": "string"
                        },
                        "page": {
                          "type": "string"
                        }
                      }
                    }
                  }
                }
              }
            },
            "required": [
              "url",
              "clientKey",
              "serviceId"
            ]
          }
        },
        "submissionAPIEndpoint": {
          "type": "object",
          "properties": {
            "url": {
              "type": "string"
            },
            "clientKey": {
              "type": "string"
            },
            "serviceId": {
              "type": "string"
            },
            "dsfgtwApiKey": {
              "type": "string"
            },
            "response": {
              "type": "object",
              "properties": {
                "errorResponse": {
                  "type": "object",
                  "additionalProperties": {
                    "type": "object",
                    "properties": {
                      "error": {
                        "type": "string"
                      },
                      "page": {
                        "type": "string"
                      }
                    }
                  }
                }
              }
            }
          },
          "required": [
            "url",
            "clientKey",
            "serviceId"
          ]
        },
        "submissionGetAPIEndpoint": {
          "type": "object",
          "properties": {
            "url": {
              "type": "string"
            },
            "method": {
              "type": "string"
            },
            "clientKey": {
              "type": "string"
            },
            "serviceId": {
              "type": "string"
            },
            "dsfgtwApiKey": {
              "type": "string"
            }
          },
          "required": [
            "url",
            "clientKey",
            "serviceId"
          ]
        },
        "submissionPutAPIEndpoint": {
          "type": "object",
          "properties": {
            "url": {
              "type": "string"
            },
            "method": {
              "type": "string"
            },
            "clientKey": {
              "type": "string"
            },
            "serviceId": {
              "type": "string"
            },
            "dsfgtwApiKey": {
              "type": "string"
            }
          },
          "required": [
            "url",
            "clientKey",
            "serviceId"
          ]
        },
        "fileUploadAPIEndpoint": {
          "type": "object",
          "properties": {
            "url": {
              "type": "string"
            },
            "method": {
              "type": "string"
            },
            "clientKey": {
              "type": "string"
            },
            "serviceId": {
              "type": "string"
            },
            "dsfgtwApiKey": {
              "type": "string"
            }
          },
          "required": [
            "url",
            "clientKey",
            "serviceId"
          ]
        },
        "fileDownloadAPIEndpoint": {
          "type": "object",
          "properties": {
            "url": {
              "type": "string"
            },
            "method": {
              "type": "string"
            },
            "clientKey": {
              "type": "string"
            },
            "serviceId": {
              "type": "string"
            },
            "dsfgtwApiKey": {
              "type": "string"
            }
          },
          "required": [
            "url",
            "clientKey",
            "serviceId"
          ]
        },
        "fileDeleteAPIEndpoint": {
          "type": "object",
          "properties": {
            "url": {
              "type": "string"
            },
            "method": {
              "type": "string"
            },
            "clientKey": {
              "type": "string"
            },
            "serviceId": {
              "type": "string"
            },
            "dsfgtwApiKey": {
              "type": "string"
            }
          },
          "required": [
            "url",
            "clientKey",
            "serviceId"
          ]
        }
      },
      "required": [
        "id",
        "lang",
        "languages",
        "footerLinks",
        "title",
        "headerTitle",
        "description",
        "url",
        "submissionAPIEndpoint",
        "submissionDataVersion",
        "rendererVersion",
        "designSystemsVersion",
        "cdn"
      ]
    },
    "pages": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "pageData": {
            "type": "object",
            "properties": {
              "url": {
                "type": "string",
                "not": {
                  "enum": [
                    "review",
                    "success"
                  ]
                }
              },
              "title": { "$ref": "#/$defs/multilang" },
              "layout": {
                "type": "string"
              },
              "mainLayout": {
                "type": "string"
              },
              "nextPage": {
                "type": "string"
              },
              "conditions": {
                "type": "array",
                "items": {
                  "type": "object",
                  "properties": {
                    "expression": {
                      "type": "string"
                    },
                    "redirect": {
                      "type": "string"
                    }
                  },
                  "required": [
                    "expression",
                    "redirect"
                  ]
                }
              }
            }
          },
          "pageTemplate": {
            "type": "object",
            "properties": {
              "sections": {
                "type": "array",
                "items": {
                  "type": "object",
                  "properties": {
                    "name": {
                      "type": "string"
                    },
                    "elements": {
                      "type": "array",
                      "items": {
                        "oneOf": [
                          { "$ref": "#/$defs/govcyElement" },
                          { "$ref": "#/$defs/govcyFormElement" }
                        ]
                      }
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "required": [
    "site",
    "pages"
  ]
}