{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://visualspec.dev/schema/1.0/modules/rendering.schema.json",
  "title": "Rendering",
  "description": "Output requirements, capability negotiation, explicit fallbacks and platform overrides.",
  "$defs": {
    "capability": {
      "type": "object",
      "properties": {
        "name": {
          "$ref": "https://visualspec.dev/schema/1.0/modules/common.schema.json#/$defs/taxonomy"
        },
        "level": {
          "enum": [
            "required",
            "preferred",
            "optional",
            "unsupported"
          ]
        },
        "fallback": {
          "type": "object",
          "properties": {
            "strategy": {
              "enum": [
                "omit",
                "approximate",
                "substitute",
                "rasterize",
                "flatten"
              ]
            },
            "description": {
              "type": "string",
              "minLength": 1
            },
            "assetRef": {
              "$ref": "https://visualspec.dev/schema/1.0/modules/common.schema.json#/$defs/id"
            },
            "motionRef": {
              "$ref": "https://visualspec.dev/schema/1.0/modules/common.schema.json#/$defs/id"
            },
            "capability": {
              "$ref": "https://visualspec.dev/schema/1.0/modules/common.schema.json#/$defs/taxonomy"
            }
          },
          "additionalProperties": false
        },
        "reason": {
          "type": "string",
          "minLength": 1
        }
      },
      "required": [
        "name",
        "level"
      ],
      "additionalProperties": false
    },
    "target": {
      "type": "object",
      "properties": {
        "id": {
          "$ref": "https://visualspec.dev/schema/1.0/modules/common.schema.json#/$defs/id"
        },
        "platform": {
          "$ref": "https://visualspec.dev/schema/1.0/modules/common.schema.json#/$defs/taxonomy"
        },
        "width": {
          "type": "integer",
          "minimum": 1
        },
        "height": {
          "type": "integer",
          "minimum": 1
        },
        "pixelDensity": {
          "type": "number",
          "exclusiveMinimum": 0
        },
        "colorSpace": {
          "enum": [
            "srgb",
            "display-p3",
            "rec2020",
            "linear"
          ]
        },
        "colorSpaceFallback": {
          "enum": [
            "srgb",
            "display-p3",
            "rec2020",
            "linear"
          ]
        },
        "frameRate": {
          "type": "number",
          "exclusiveMinimum": 0
        },
        "aspectRatio": {
          "type": "number",
          "exclusiveMinimum": 0
        },
        "quality": {
          "enum": [
            "draft",
            "preview",
            "production",
            "lossless"
          ]
        },
        "format": {
          "type": "string",
          "minLength": 1
        },
        "capabilities": {
          "type": "array",
          "items": {
            "$ref": "https://visualspec.dev/schema/1.0/modules/rendering.schema.json#/$defs/capability"
          }
        },
        "profileRefs": {
          "type": "array",
          "items": {
            "$ref": "https://visualspec.dev/schema/1.0/modules/common.schema.json#/$defs/taxonomy"
          },
          "uniqueItems": true
        },
        "transparent": {
          "type": "boolean"
        },
        "extensions": {
          "$ref": "https://visualspec.dev/schema/1.0/modules/common.schema.json#/$defs/extensions"
        }
      },
      "required": [
        "id",
        "platform"
      ],
      "additionalProperties": false
    },
    "rendering": {
      "type": "object",
      "properties": {
        "targets": {
          "type": "array",
          "items": {
            "$ref": "https://visualspec.dev/schema/1.0/modules/rendering.schema.json#/$defs/target"
          },
          "minItems": 1
        },
        "capabilities": {
          "type": "array",
          "items": {
            "$ref": "https://visualspec.dev/schema/1.0/modules/rendering.schema.json#/$defs/capability"
          }
        },
        "quality": {
          "enum": [
            "draft",
            "preview",
            "production",
            "lossless"
          ]
        },
        "deterministic": {
          "type": "boolean"
        },
        "seed": {
          "type": "integer",
          "minimum": 0
        },
        "fallbackPolicy": {
          "enum": [
            "explicit-only",
            "report-and-approximate",
            "error"
          ]
        },
        "background": {
          "$ref": "https://visualspec.dev/schema/1.0/modules/appearance.schema.json#/$defs/color"
        },
        "extensions": {
          "$ref": "https://visualspec.dev/schema/1.0/modules/common.schema.json#/$defs/extensions"
        }
      },
      "additionalProperties": false
    },
    "override": {
      "type": "object",
      "properties": {
        "platform": {
          "$ref": "https://visualspec.dev/schema/1.0/modules/common.schema.json#/$defs/taxonomy"
        },
        "targetRef": {
          "$ref": "https://visualspec.dev/schema/1.0/modules/common.schema.json#/$defs/id"
        },
        "reason": {
          "type": "string",
          "minLength": 1
        },
        "layout": {
          "$ref": "https://visualspec.dev/schema/1.0/modules/layout.schema.json#/$defs/layout"
        },
        "appearance": {
          "$ref": "https://visualspec.dev/schema/1.0/modules/appearance.schema.json#/$defs/appearance"
        },
        "accessibility": {
          "$ref": "https://visualspec.dev/schema/1.0/modules/accessibility.schema.json#/$defs/accessibility"
        },
        "componentRef": {
          "$ref": "https://visualspec.dev/schema/1.0/modules/common.schema.json#/$defs/id"
        },
        "motionRef": {
          "$ref": "https://visualspec.dev/schema/1.0/modules/common.schema.json#/$defs/id"
        },
        "capabilities": {
          "type": "array",
          "items": {
            "$ref": "https://visualspec.dev/schema/1.0/modules/rendering.schema.json#/$defs/capability"
          }
        },
        "extensions": {
          "$ref": "https://visualspec.dev/schema/1.0/modules/common.schema.json#/$defs/extensions"
        }
      },
      "required": [
        "platform",
        "targetRef",
        "reason"
      ],
      "additionalProperties": false
    }
  },
  "$ref": "#/$defs/rendering"
}