{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://api-evangelist.com/schemas/templates/template.json",
  "title": "API Template",
  "description": "Schema for an API template artifact including metadata, engine requirements, and variable definitions",
  "type": "object",
  "required": ["name", "templateEngine", "version"],
  "properties": {
    "name": {
      "type": "string",
      "description": "Human-readable name of the template",
      "example": "OpenAPI REST API Template"
    },
    "description": {
      "type": "string",
      "description": "Description of the template's purpose and use case"
    },
    "version": {
      "type": "string",
      "description": "Template version following semver",
      "pattern": "^\\d+\\.\\d+\\.\\d+$",
      "example": "1.0.0"
    },
    "templateEngine": {
      "type": "string",
      "description": "Templating engine required to render this template",
      "enum": ["mustache", "handlebars", "jinja2", "liquid", "ejs", "erb", "freemarker"],
      "example": "mustache"
    },
    "targetLanguage": {
      "type": "string",
      "description": "Primary output language or format",
      "example": "typescript"
    },
    "targetFramework": {
      "type": "string",
      "description": "Target framework or library",
      "example": "express"
    },
    "variables": {
      "type": "array",
      "description": "Template variable definitions",
      "items": {
        "type": "object",
        "required": ["name", "type"],
        "properties": {
          "name": {
            "type": "string",
            "description": "Variable name as it appears in the template"
          },
          "type": {
            "type": "string",
            "enum": ["string", "boolean", "integer", "array", "object"],
            "description": "Variable data type"
          },
          "required": {
            "type": "boolean",
            "default": false,
            "description": "Whether this variable is required"
          },
          "default": {
            "description": "Default value if variable is not provided"
          },
          "description": {
            "type": "string",
            "description": "Description of the variable's purpose"
          }
        }
      }
    },
    "tags": {
      "type": "array",
      "description": "Categorization tags",
      "items": {
        "type": "string"
      },
      "example": ["OpenAPI", "REST", "TypeScript"]
    },
    "license": {
      "type": "string",
      "description": "SPDX license identifier",
      "example": "Apache-2.0"
    },
    "repositoryUrl": {
      "type": "string",
      "format": "uri",
      "description": "Source repository URL"
    }
  }
}