{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://openknowhow.org/okh.schema.json",
  "title": "Manifest",
  "description": "This is a JSON schema, which can validate an 'okh.yml' file, which holds a projects Open Know-How (Open Source Hardware) meta-data. This schema is based on the specification in <https://barbal.co/the-open-know-how-manifest-specification-version-1-0/>",
  "$comment": "NOTE: The properies 'ui-hidden' and 'ui-recommended' used in this schema, are non-standardised, and currently unused. They could be used to create a form, and are here for consistency with <https://git.iostud.io/makernet/iop-cdb/-/blob/dev/server/assets/okh.okhdf>.",
  "type": "object",
  "properties": {
    "title": {
      "description": "Name of the hardware",
      "type": "string",
      "examples": [
        "My Cool Project",
        "Ultimate Garden-Hose"
      ]
    },
    "description": {
      "description": "Description of the hardware",
      "type": "string",
      "examples": [
        "A 3D printed hose for a standard garden.",
        "A loom with only wooden and 3D printed parts."
      ]
    },
    "intended-use": {
      "description": "Intended use for the hardware",
      "ui-recommended": true,
      "type": "string",
      "examples": [
        "Allows computing under rough environmental conditions.",
        "To produce electricity in windy areas, far from the grid."
      ]
    },
    "keywords": {
      "description": "Keywords for the product",
      "ui-recommended": "at least 1",
      "type": "array",
      "items": {
        "type": "string",
        "examples": [
          "garden-hose",
          "free-floating",
          "low-tech",
          "renewable"
        ]
      },
      "minItems": 1,
      "uniqueItems": true
    },
    "project-link": {
      "description": "Link to the project",
      "$ref": "#/$defs/webUrl",
      "examples": [
        "TODO"
      ]
    },
    "image": {
      "description": "Link to an image",
      "ui-recommended": true,
      "$ref": "#/$defs/relPathOrWebUrl",
      "examples": [
        "TODO"
      ]
    },
    "made": {
      "description": "Someone has made this hardware",
      "type": "boolean",
      "default": false
    },
    "made-independently": {
      "description": "Someone independent has made this hardware",
      "type": "boolean",
      "default": false
    },
    "license": {
      "type": "object",
      "properties": {
        "hardware": {
          "description": "The license under which the hardware is released",
          "ui-recommended": true,
          "$ref": "#/$defs/spdxLicenseExpression"
        },
        "documentation": {
          "description": "The license under which the documentation is released",
          "ui-recommended": true,
          "$ref": "#/$defs/spdxLicenseExpression"
        },
        "software": {
          "description": "The format should be an SPDX identifier. See https://spdx.org/licenses/",
          "ui-recommended": true,
          "$ref": "#/$defs/spdxLicenseExpression"
        }
      },
      "anyOf": [
        { "required": [ "hardware" ] },
        { "required": [ "documentation" ] },
        { "required": [ "software" ] }
      ],
      "additionalProperties": true
    },
    "licensor": {
      "description": "Who granted the license?",
      "$ref": "#/$defs/person",
      "required": [ "name" ]
    },
    "okh-manifest-version": {
      "description": "TODO",
      "type": "string",
      "const": "1.0.0",
      "ui-hidden": true
    },
    "date-created": {
      "description": "TODO",
      "$ref": "#/$defs/date"
    },
    "date-updated": {
      "$ref": "#/$defs/date",
      "ui-hidden": true
    },
    "manifest-author": {
      "description": "Author of this manifest file (you)",
      "$ref": "#/$defs/person",
      "required": ["name", "email"]
    },
    "manifest-language": {
      "description": "Language of the original, as a BCP 47 language tag",
      "$ref": "#/$defs/language"
    },
    "manifest-is-translation": {
      "description": "If this manifest is a translation, fill in the following section",
      "$ref": "#/$defs/translation"
    },
    "contact": {
      "allOf": [{ "$ref": "#/$defs/person" }],
      "properties": {
        "social": {
          "type": "array",
          "items": {
            "type": "object",
            "properties": {
              "platform": {
                "type": "string",
                "examples": [
                  "ssb",
                  "Telegram"
                ]
              },
              "user-handle": {
                "type": "string",
                "examples": [
                  "scoobiedoo",
                  "JohnDoe",
                  "JaneDoe",
                  "MrNobody",
                  "MsSomewhere_at_least"
                ]
              }
            },
            "additionalProperties": true
          }
        }
      },
      "additionalProperties": true
    },
    "contributors": {
      "ui-recommended": true,
      "type": "array",
      "items": {
        "$ref": "#/$defs/person",
        "required": [ "name" ]
      }
    },
    "version": {
      "type": ["string", "number"],
      "examples": [
        "2.3.4",
        "0.0.1-24-g6a8a3a7",
        "v0.3.1",
        "6a8a3a7",
        61
      ]
    },
    "development-stage": {
      "type": "string",
      "examples": [
        "idea",
        "prototype",
        "product"
      ]
    },
    "documentation-home": {
      "$ref": "#/$defs/relPathOrWebUrl",
      "examples": [
        "TODO URL"
      ]
    },
    "archive-download": {
      "$ref": "#/$defs/relPathOrWebUrl",
      "examples": [
        "TODO URL"
      ]
    },
    "design-files": {
      "ui-recommended": true,
      "$ref": "#/$defs/documents"
    },
    "documentation-language": {
      "description": "Language the documentation is written in, as a BCP 47 language tag",
      "$ref": "#/$defs/language"
    },
    "documentation-is-translation": {
      "description": "If the documentation is a translation, fill in the following section",
      "$ref": "#/$defs/translation"
    },
    "schematics": {
      "ui-recommended": "where applicable",
      "$ref": "#/$defs/documents"
    },
    "bom": {
      "description": "Bill of Materials",
      "ui-recommended": true,
      "$ref": "#/$defs/relPathOrWebUrl",
      "examples": [
        "TODO URL"
      ]
    },
    "tool-list": {
      "description": "List of tools",
      "ui-recommended": true,
      "$ref": "#/$defs/relPathOrWebUrl",
      "examples": [
        "TODO URL"
      ]
    },
    "making-instructions": {
      "ui-recommended": true,
      "$ref": "#/$defs/documents"
    },
    "manufacturing-files": {
      "ui-recommended": "where applicable",
      "$ref": "#/$defs/documents"
    },
    "risk-assessment": {
      "ui-recommended": true,
      "$ref": "#/$defs/documents"
    },
    "tool-settings": {
      "ui-recommended": "where applicable",
      "$ref": "#/$defs/documents"
    },
    "quality-instructions": {
      "$ref": "#/$defs/documents"
    },
    "operating-instructions": {
      "ui-recommended": true,
      "$ref": "#/$defs/documents"
    },
    "maintenance-instructions": {
      "ui-recommended": true,
      "$ref": "#/$defs/documents"
    },
    "disposal-instructions": {
      "ui-recommended": true,
      "$ref": "#/$defs/documents"
    },
    "software": {
      "ui-recommended": "where applicable",
      "$ref": "#/$defs/documents"
    },
    "health-safety-notice": {
      "type": "string",
      "examples": [
        "TODO"
      ]
    },
    "standards-used": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "standard-title": {
            "description": "Title of the standard used in developing the design or documentation",
            "type": "string",
            "examples": [
              "DIN SPEC 3105-1",
              "BCP 47 - International language tag",
              "DIN A4 - European paper standard"
            ]
          },
          "publisher": {
            "description": "Publisher of the standard",
            "type": "string",
            "examples": [
              "ISO",
              "IANA",
              "DIN",
              "OSEG"
            ]
          },
          "reference": {
            "description": "Reference indentifier of the standard (e.g. 'ISO 9001')",
            "type": "string",
            "examples": [
              "ISO 9001",
              "ISO 1234",
              "ISO 9876",
              "DIN A4",
              "DIN SPEC 3105-1"
            ]
          },
          "certification": {
            "description": "If certification has been granted confirming compliance with the standard",
            "type": "array",
            "items": {
              "type": "object",
              "properties": {
                "certifier": {
                  "description": "Individual or organisation granting the certification. Use 'Self' for self-certification",
                  "type": "string",
                  "examples": [
                    "Self",
                    "OrganizationX",
                    "PersonY",
                    "Big Corp. Inc."
                  ]
                },
                "date-awarded": {
                  "description": "Date certification was granted",
                  "$ref": "#/$defs/date"
                },
                "link": {
                  "description": "Link to evidence of certification (e.g. certificate). Use an an absolute path to an external resource or an absolute or relative path to evidence within the documentation.",
                  "$ref": "#/$defs/webUrl",
                  "examples": [
                    "TODO"
                  ]
                }
              },
              "additionalProperties": true
            }
          }
        },
        "required": [ "standard-title" ],
        "additionalProperties": true
      }
    },
    "derivative-of": {
      "description": "This project is a derivative of",
      "$ref": "#/$defs/otherProject"
    },
    "variant-of": {
      "description": "This project is a variant of",
      "$ref": "#/$defs/otherProject"
    },
    "sub": {
      "description": "This project uses the following sub-parts",
      "$comment": "Deprecation warning: In newer versions, this is called 'sub-parts', not 'sub' anymore",
      "deprecated": true,
      "type": "array",
      "items": {
        "$ref": "#/$defs/otherProject"
      }
    },
    "sub-parts": {
      "description": "This project uses the following sub-parts",
      "type": "array",
      "items": {
        "$ref": "#/$defs/otherProject"
      }
    }
  },
  "$defs": {
    "webUrl": {
      "type": "string",
      "format": "uri",
      "pattern": "^https?://"
    },
    "relPath": {
      "type": "string",
      "$comment": "A relative file-path to a dir or file below the root - as much as one can check for that with a regex",
      "not": {
        "anyOf": [
          {
            "$comment": "no protocol",
            "pattern": "^[a-z]*:"
          },
          {
            "$comment": "no URL-absolute path without protocol",
            "pattern": "^//"
          },
          {
            "$comment": "no parent-dir-references",
            "pattern": "(?:.*/)?\\.\\.(?:/.*)?"
          }
        ]
      }
    },
    "relPathOrWebUrl": {
      "type": "string",
      "anyOf": [
        {
          "$comment": "A full web URL",
          "format": "uri",
          "pattern": "^https?://"
        },
        {
          "$ref": "#/$defs/relPath"
        }
      ]
    },
    "email": {
      "type": "string",
      "format": "email",
      "examples": [
        "jane.doe@email.com",
        "john.doe@email.com",
        "ester.something@good.org"
      ]
    },
    "date": {
      "type": "string",
      "format": "date",
      "examples": [
        "2000-04-06",
        "0001-0-0",
        "1984-10-1"
      ]
    },
    "language": {
      "description": "Language as a BCP 47 language tag",
      "type": "string",
      "pattern": "^((?<grandfathered>(en-GB-oed|i-ami|i-bnn|i-default|i-enochian|i-hak|i-klingon|i-lux|i-mingo|i-navajo|i-pwn|i-tao|i-tay|i-tsu|sgn-BE-FR|sgn-BE-NL|sgn-CH-DE)|(art-lojban|cel-gaulish|no-bok|no-nyn|zh-guoyu|zh-hakka|zh-min|zh-min-nan|zh-xiang))|((?<language>([A-Za-z]{2,3}(-(?<extlang>[A-Za-z]{3}(-[A-Za-z]{3}){0,2}))?)|[A-Za-z]{4}|[A-Za-z]{5,8})(-(?<script>[A-Za-z]{4}))?(-(?<region>[A-Za-z]{2}|[0-9]{3}))?(-(?<variant>[A-Za-z0-9]{5,8}|[0-9][A-Za-z0-9]{3}))*(-(?<extension>[0-9A-WY-Za-wy-z](-[A-Za-z0-9]{2,8})+))*(-(?<privateUse>x(-[A-Za-z0-9]{1,8})+))?)|(?<privateUse>x(-[A-Za-z0-9]{1,8})+))$",
      "examples": [
        "en",
        "de",
        "es",
        "zh"
      ]
    },
    "spdxLicenseExpression": {
      "description": "A valid SPDX license expression",
      "$comment": "TODO We would have to define this in an extra schema, generated -> do it in the SPDX-Identifiers-generater repo!",
      "type": "string"
    },
    "otherProject": {
      "type": "object",
      "properties": {
        "title": {
          "type": "string",
          "examples": [
            "TODO"
          ]
        },
        "manifest": {
          "$ref": "#/$defs/webUrl",
          "examples": [
            "TODO"
          ]
        },
        "web": {
          "$ref": "#/$defs/webUrl",
          "examples": [
            "TODO"
          ]
        }
      },
      "additionalProperties": true
    },
    "documents": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "path": {
            "$ref": "#/$defs/relPathOrWebUrl",
            "examples": [
              "TODO"
            ]
          },
          "title": {
            "type": "string",
            "examples": [
              "TODO"
            ]
          }
        },
        "additionalProperties": true
      }
    },
    "translation": {
      "type": "object",
      "properties": {
        "title": {
          "description": "Title of the original",
          "type": "string",
          "examples": [
            "TODO"
          ]
        },
        "manifest": {
          "description": "OKH manifest location",
          "type": "string",
          "$ref": "#/$defs/webUrl",
          "examples": [
            "TODO"
          ]
        },
        "web": {
          "description": "Web presence location",
          "$ref": "#/$defs/webUrl"
        },
        "lang": {
          "description": "Language of the original, as a BCP 47 language tag",
          "$ref": "#/$defs/language"
        }
      },
      "required": [],
      "additionalProperties": true
    },
    "person": {
      "type": "object",
      "properties": {
        "name": {
          "type": "string",
          "examples": [
            "TODO"
          ]
        },
        "affiliation": {
          "type": "string",
          "examples": [
            "Free Software Foundation",
            "Open Source Initiative",
            "Open Source Hardware Association",
            "Open Source Ecology",
            "Open Source Ecology Germany"
          ]
        },
        "email": {
          "$ref": "#/$defs/email"
        }
      },
      "anyOf": [
        { "required": [ "name" ] },
        { "required": [ "email" ] }
      ],
      "additionalProperties": true
    }
  },
  "required": [ "title", "description", "license" ],
  "anyOf": [
    { "required": [ "project-link" ] },
    { "required": [ "documentation-home" ] }
  ],
  "additionalProperties": true
}