{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "Eclipse Tractus-X KITs Data Schema",
  "description": "JSON Schema for validating KITs, Industries, and Dataspaces data structure",
  "definitions": {
    "kitBase": {
      "type": "object",
      "description": "Base properties shared by all KITs",
      "properties": {
        "id": {
          "type": "string",
          "pattern": "^[a-z0-9-]+$",
          "description": "Unique identifier for the KIT (lowercase, alphanumeric with hyphens)"
        },
        "name": {
          "type": "string",
          "minLength": 1,
          "description": "Display name of the KIT (typically uppercase)"
        },
        "logo": {
          "description": "Logo component reference (validated at runtime)"
        },
        "logoLicencse": {
          "type": "object",
          "description": "License information for the KIT logo",
          "properties": {
            "type": {
              "type": "string",
              "enum": ["CC-BY-4.0", "Apache-2.0", "CC0 1.0 Universal", "MIT"],
              "description": "License type for the logo"
            },
            "authors": {
              "type": "string",
              "minLength": 1,
              "description": "Semicolon-separated list of copyright holders (e.g., '2026 Eclipse Tractus-X Contributors; 2024,2025 Company Name')"
            },
            "licenseUrl": {
              "type": "string",
              "format": "uri",
              "description": "URL to the license declaration file (e.g., GitHub .license file)"
            },
            "sourceUrl": {
              "type": "string",
              "format": "uri",
              "description": "URL to the logo source file"
            },
            "originalSourceUrl": {
              "type": "string",
              "format": "uri",
              "description": "Optional URL to the original source if logo is derived from external source"
            }
          },
          "required": ["type", "authors", "licenseUrl", "sourceUrl"],
          "additionalProperties": false
        },
        "logoHeight": {
          "type": "number",
          "minimum": 0,
          "description": "Height of the logo in pixels"
        },
        "logoWidth": {
          "type": "number",
          "minimum": 0,
          "description": "Width of the logo in pixels"
        },
        "route": {
          "type": "string",
          "pattern": "^/docs-kits/",
          "description": "Documentation route for the KIT"
        },
        "colors": {
          "type": "object",
          "properties": {
            "primary": {
              "type": "string",
              "pattern": "^#[0-9A-Fa-f]{6}$",
              "description": "Primary color in hexadecimal format"
            },
            "gradient": {
              "type": "string",
              "pattern": "^linear-gradient\\(",
              "description": "CSS gradient for visual styling"
            }
          },
          "required": ["primary", "gradient"],
          "additionalProperties": false
        },
        "maturity": {
          "type": "object",
          "properties": {
            "currentLevel": {
              "type": "string",
              "enum": ["Sandbox", "Incubating", "Graduated"],
              "description": "Current maturity level of the KIT"
            },
            "graduationStatus": {
              "type": "string",
              "enum": ["draft", "in progress", "in review", "no further development"],
              "description": "Status of graduation process"
            },
            "graduatedAt": {
              "type": "string",
              "format": "date",
              "description": "Date when KIT reached Graduated status (YYYY-MM-DD)"
            },
            "deprecatedAt": {
              "type": "string",
              "format": "date",
              "description": "Date when KIT was deprecated (YYYY-MM-DD)"
            }
          },
          "required": ["currentLevel"],
          "additionalProperties": false
        },
        "deprecated": {
          "type": "boolean",
          "description": "Whether the KIT is deprecated"
        },
        "description": {
          "type": "string",
          "minLength": 10,
          "maxLength": 500,
          "description": "Brief description of the KIT"
        },
        "metadata": {
          "type": "object",
          "properties": {
            "created": {
              "type": "string",
              "format": "date",
              "description": "Creation date (YYYY-MM-DD)"
            },
            "lastUpdated": {
              "type": "string",
              "format": "date",
              "description": "Last update date (YYYY-MM-DD)"
            },
            "latestVersion": {
              "type": "string",
              "pattern": "^[0-9]+\\.[0-9]+\\.[0-9]+$",
              "description": "Latest version in semver format"
            },
            "new": {
              "type": "boolean",
              "description": "Whether to display as a new KIT"
            }
          },
          "required": ["created", "lastUpdated", "latestVersion", "new"],
          "additionalProperties": false
        }
      },
      "required": [
        "id",
        "name",
        "logo",
        "logoLicencse",
        "route",
        "colors",
        "maturity",
        "deprecated",
        "description",
        "metadata"
      ]
    },
    "foundationKit": {
      "allOf": [
        { "$ref": "#/definitions/kitBase" }
      ],
      "type": "object",
      "description": "Foundation KITs (dataspace and industry core) - industries field optional",
      "properties": {
        "industries": {
          "type": "array",
          "items": {
            "type": "string",
            "minLength": 1
          },
          "minItems": 1,
          "uniqueItems": true,
          "description": "Industries where this KIT is applicable (optional for foundation KITs)"
        }
      },
      "additionalProperties": false
    },
    "useCaseKit": {
      "allOf": [
        { "$ref": "#/definitions/kitBase" }
      ],
      "type": "object",
      "description": "Use case KITs - domain field required",
      "properties": {
        "domain": {
          "type": "string",
          "enum": ["Sustainability", "Engineering", "Supply Chain", "Quality", "Production"],
          "description": "Domain category for use case KITs (e.g., Sustainability, Engineering, Supply Chain)"
        },
        "industries": {
          "type": "array",
          "items": {
            "type": "string",
            "minLength": 1
          },
          "minItems": 1,
          "uniqueItems": true,
          "description": "Industries where this KIT is applicable (optional for use case KITs)"
        }
      },
      "required": ["domain"],
      "additionalProperties": false
    },
    "dataspace": {
      "type": "object",
      "description": "A dataspace represents a data ecosystem for a specific industry",
      "properties": {
        "name": {
          "type": "string",
          "minLength": 1,
          "description": "Name of the dataspace"
        },
        "url": {
          "type": "string",
          "format": "uri",
          "description": "Website URL of the dataspace"
        },
        "gradient": {
          "type": "string",
          "pattern": "^linear-gradient\\(",
          "description": "CSS gradient for visual styling"
        },
        "logo": {
          "type": "object",
          "properties": {
            "src": {
              "type": "string",
              "format": "uri",
              "description": "Logo image URL"
            },
            "alt": {
              "type": "string",
              "minLength": 1,
              "description": "Alt text for the logo"
            },
            "width": {
              "type": "number",
              "minimum": 0,
              "description": "Logo width in pixels"
            },
            "height": {
              "type": "number",
              "minimum": 0,
              "description": "Logo height in pixels"
            }
          },
          "required": ["src", "alt", "width", "height"],
          "additionalProperties": false
        },
        "colors": {
          "type": "object",
          "properties": {
            "layer1": {
              "type": "string",
              "description": "Color layer 1 (CSS color value)"
            },
            "layer2": {
              "type": "string",
              "description": "Color layer 2 (CSS color value)"
            },
            "layer3": {
              "type": "string",
              "description": "Color layer 3 (CSS color value)"
            },
            "layer4": {
              "type": "string",
              "description": "Color layer 4 (CSS color value)"
            }
          },
          "required": ["layer1", "layer2", "layer3", "layer4"],
          "additionalProperties": false,
          "description": "Color layers for visual styling of dataspace blocks"
        },
        "subtitle": {
          "type": "string",
          "minLength": 1,
          "description": "Short tagline for the dataspace"
        },
        "description": {
          "type": "string",
          "minLength": 10,
          "description": "Detailed description of the dataspace"
        },
        "kits": {
          "type": "array",
          "items": {
            "type": "string",
            "pattern": "^[a-z0-9-]+$",
            "description": "KIT ID reference"
          },
          "uniqueItems": true,
          "description": "Array of KIT IDs associated with this dataspace"
        }
      },
      "required": ["name", "url", "gradient", "logo", "colors", "subtitle", "description"],
      "additionalProperties": false
    },
    "industry": {
      "type": "object",
      "description": "An industry sector using Eclipse Tractus-X",
      "properties": {
        "id": {
          "type": "string",
          "pattern": "^[a-z0-9-]+$",
          "description": "Unique identifier for the industry"
        },
        "name": {
          "type": "string",
          "minLength": 1,
          "description": "Display name of the industry"
        },
        "subtitle": {
          "type": "string",
          "minLength": 1,
          "description": "Short description of industry KITs"
        },
        "description": {
          "type": "string",
          "minLength": 10,
          "description": "Detailed description of the industry ecosystem"
        },
        "icon": {
          "description": "Material-UI icon component (validated at runtime)"
        },
        "gradient": {
          "type": "string",
          "pattern": "^linear-gradient\\(",
          "description": "CSS gradient for visual styling"
        },
        "dataspaces": {
          "type": "array",
          "items": {
            "$ref": "#/definitions/dataspace"
          },
          "description": "Associated dataspaces for this industry"
        }
      },
      "required": [
        "id",
        "name",
        "subtitle",
        "description",
        "icon",
        "gradient",
        "dataspaces"
      ],
      "additionalProperties": false
    },
    "kitsData": {
      "type": "object",
      "description": "Root object containing all KITs organized by category",
      "properties": {
        "dataspaceFoundation": {
          "type": "array",
          "items": {
            "$ref": "#/definitions/foundationKit"
          },
          "description": "Core dataspace infrastructure KITs"
        },
        "industryCoreFoundation": {
          "type": "array",
          "items": {
            "$ref": "#/definitions/foundationKit"
          },
          "description": "Industry core foundation KITs"
        },
        "useCases": {
          "type": "array",
          "items": {
            "$ref": "#/definitions/useCaseKit"
          },
          "description": "Cross-industry use case KITs (industries field required)"
        },
        "industryKits": {
          "type": "object",
          "description": "Industry-specific KITs organized by industry ID",
          "patternProperties": {
            "^[a-z0-9-]+$": {
              "type": "array",
              "items": {
                "$ref": "#/definitions/useCaseKit"
              }
            }
          },
          "additionalProperties": false
        }
      },
      "required": [
        "dataspaceFoundation",
        "industryCoreFoundation",
        "useCases",
        "industryKits"
      ],
      "additionalProperties": false
    }
  },
  "type": "object",
  "properties": {
    "kitsData": {
      "$ref": "#/definitions/kitsData"
    },
    "industries": {
      "type": "array",
      "items": {
        "$ref": "#/definitions/industry"
      },
      "description": "Array of all industries"
    }
  }
}