{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "DnD-Kit Configuration Schema",
  "description": "Configuration schema for dnd-kit drag-and-drop library",
  "type": "object",
  "properties": {
    "sensors": {
      "type": "array",
      "description": "Input sensors for detecting drag operations",
      "items": {
        "type": "object",
        "properties": {
          "sensor": {
            "type": "string",
            "enum": ["PointerSensor", "KeyboardSensor", "TouchSensor"],
            "description": "Type of sensor to use"
          },
          "options": {
            "type": "object",
            "properties": {
              "activationConstraint": {
                "type": "object",
                "properties": {
                  "distance": {
                    "type": "number",
                    "description": "Minimum distance in pixels to activate drag"
                  },
                  "delay": {
                    "type": "number",
                    "description": "Delay in milliseconds before drag activation"
                  },
                  "tolerance": {
                    "type": "number",
                    "description": "Movement tolerance during delay period"
                  }
                }
              },
              "coordinateGetter": {
                "type": "string",
                "description": "Function name for getting keyboard coordinates"
              },
              "scrollBehavior": {
                "type": "string",
                "enum": ["auto", "smooth"],
                "description": "Scrolling behavior during keyboard navigation"
              }
            }
          }
        },
        "required": ["sensor"]
      }
    },
    "modifiers": {
      "type": "array",
      "description": "Modifiers to constrain or modify drag behavior",
      "items": {
        "type": "object",
        "properties": {
          "modifier": {
            "type": "string",
            "enum": [
              "restrictToVerticalAxis",
              "restrictToHorizontalAxis",
              "restrictToWindowEdges",
              "restrictToParentElement",
              "restrictToFirstScrollableAncestor",
              "snapCenterToCursor"
            ],
            "description": "Type of modifier to apply"
          },
          "options": {
            "type": "object",
            "properties": {
              "gridSize": {
                "type": "number",
                "description": "Grid size for snapping (in pixels)"
              }
            }
          }
        },
        "required": ["modifier"]
      }
    },
    "animation": {
      "type": "object",
      "description": "Animation configuration",
      "properties": {
        "duration": {
          "type": "number",
          "description": "Animation duration in milliseconds",
          "minimum": 0
        },
        "easing": {
          "type": "string",
          "description": "CSS easing function",
          "examples": [
            "ease",
            "ease-in",
            "ease-out",
            "ease-in-out",
            "cubic-bezier(0.4, 0, 0.2, 1)"
          ]
        },
        "dragOverlay": {
          "type": ["object", "null"],
          "description": "Drag overlay animation settings",
          "properties": {
            "opacity": {
              "type": "number",
              "minimum": 0,
              "maximum": 1,
              "description": "Opacity of dragged element"
            },
            "scale": {
              "type": "number",
              "minimum": 0,
              "description": "Scale factor for dragged element"
            }
          }
        },
        "dropAnimation": {
          "type": ["object", "null"],
          "description": "Drop animation settings",
          "properties": {
            "duration": {
              "type": "number",
              "minimum": 0,
              "description": "Drop animation duration"
            },
            "easing": {
              "type": "string",
              "description": "Drop animation easing"
            },
            "keyframes": {
              "type": "array",
              "description": "Animation keyframes",
              "items": {
                "type": "object"
              }
            }
          }
        },
        "layoutAnimation": {
          "type": ["object", "null"],
          "description": "Layout shift animation settings",
          "properties": {
            "duration": {
              "type": "number",
              "minimum": 0
            },
            "easing": {
              "type": "string"
            }
          }
        }
      }
    },
    "collision": {
      "type": "object",
      "description": "Collision detection strategy",
      "properties": {
        "name": {
          "type": "string",
          "enum": [
            "closestCenter",
            "closestCorners",
            "rectIntersection",
            "pointerWithin"
          ],
          "description": "Collision detection algorithm"
        },
        "description": {
          "type": "string",
          "description": "Description of the collision strategy"
        }
      },
      "required": ["name"]
    },
    "sorting": {
      "type": "object",
      "description": "Sorting strategy for sortable items",
      "properties": {
        "name": {
          "type": "string",
          "enum": [
            "verticalListSortingStrategy",
            "horizontalListSortingStrategy",
            "rectSortingStrategy"
          ],
          "description": "Sorting strategy name"
        },
        "description": {
          "type": "string",
          "description": "Description of the sorting strategy"
        },
        "direction": {
          "type": "string",
          "enum": ["vertical", "horizontal", "both"],
          "description": "Direction of sorting"
        }
      },
      "required": ["name", "direction"]
    },
    "accessibility": {
      "type": "object",
      "description": "Accessibility configuration",
      "properties": {
        "announcements": {
          "type": ["object", "null"],
          "description": "Screen reader announcements",
          "properties": {
            "onDragStart": {
              "type": "string",
              "description": "Template for drag start announcement"
            },
            "onDragOver": {
              "type": "string",
              "description": "Template for drag over announcement"
            },
            "onDragEnd": {
              "type": "string",
              "description": "Template for drag end announcement"
            },
            "onDragCancel": {
              "type": "string",
              "description": "Template for drag cancel announcement"
            }
          }
        },
        "liveRegion": {
          "type": "boolean",
          "description": "Enable live region for announcements",
          "default": true
        },
        "screenReaderInstructions": {
          "type": "boolean",
          "description": "Include screen reader instructions",
          "default": true
        },
        "ariaDescribedBy": {
          "type": "string",
          "description": "ID of element containing instructions"
        },
        "ariaAttributes": {
          "type": "object",
          "description": "Additional ARIA attributes",
          "additionalProperties": {
            "type": "string"
          }
        }
      }
    },
    "autoScroll": {
      "type": ["object", "null"],
      "description": "Auto-scroll configuration",
      "properties": {
        "enabled": {
          "type": "boolean",
          "description": "Enable auto-scrolling",
          "default": true
        },
        "threshold": {
          "type": "object",
          "description": "Distance from edge to trigger scrolling (0-1)",
          "properties": {
            "x": {
              "type": "number",
              "minimum": 0,
              "maximum": 1
            },
            "y": {
              "type": "number",
              "minimum": 0,
              "maximum": 1
            }
          }
        },
        "maxSpeed": {
          "type": "number",
          "description": "Maximum scroll speed in pixels per frame",
          "minimum": 0
        },
        "acceleration": {
          "type": "number",
          "description": "Scroll acceleration factor",
          "minimum": 0
        },
        "interval": {
          "type": "number",
          "description": "Scroll interval in milliseconds",
          "minimum": 0
        },
        "canScroll": {
          "type": "boolean",
          "description": "Whether scrolling is allowed"
        }
      }
    }
  },
  "required": ["sensors", "collision", "sorting"],
  "examples": [
    {
      "sensors": [
        {
          "sensor": "PointerSensor",
          "options": {
            "activationConstraint": {
              "distance": 10
            }
          }
        },
        {
          "sensor": "KeyboardSensor",
          "options": {
            "coordinateGetter": "sortableKeyboardCoordinates"
          }
        }
      ],
      "modifiers": [
        {
          "modifier": "restrictToWindowEdges"
        }
      ],
      "animation": {
        "duration": 200,
        "easing": "cubic-bezier(0.4, 0, 0.2, 1)",
        "dragOverlay": {
          "opacity": 0.5,
          "scale": 1.05
        }
      },
      "collision": {
        "name": "closestCenter",
        "description": "Drop on the element whose center is closest to the pointer"
      },
      "sorting": {
        "name": "verticalListSortingStrategy",
        "description": "For vertical lists",
        "direction": "vertical"
      },
      "accessibility": {
        "announcements": {
          "onDragStart": "Picked up draggable item ${id}",
          "onDragEnd": "Dropped draggable item ${id}"
        },
        "liveRegion": true,
        "screenReaderInstructions": true,
        "ariaDescribedBy": "dnd-instructions"
      },
      "autoScroll": {
        "enabled": true,
        "threshold": {
          "x": 0.2,
          "y": 0.2
        },
        "maxSpeed": 10,
        "acceleration": 10,
        "interval": 10
      }
    }
  ]
}