{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "diffusiongemma.advertisement_reference_assets@1",
  "title": "DiffusionGemma Advertisement Reference Assets",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "schema",
    "version",
    "generation_width",
    "generation_height",
    "performer_budget",
    "product_budget",
    "assets",
    "director_batch",
    "identity_product_combined_sheet",
    "ready"
  ],
  "properties": {
    "schema": { "const": "diffusiongemma.advertisement_reference_assets" },
    "version": { "const": 1 },
    "generation_width": { "type": "integer", "minimum": 256, "maximum": 8192 },
    "generation_height": { "type": "integer", "minimum": 256, "maximum": 8192 },
    "performer_budget": {
      "type": "object",
      "additionalProperties": false,
      "required": ["area_ratio", "hero_share", "roles"],
      "properties": {
        "area_ratio": { "type": "number", "minimum": 0.25, "maximum": 2 },
        "hero_share": { "type": "number", "minimum": 0.2, "maximum": 0.8 },
        "roles": { "const": ["performer_hero", "performer_sheet"] }
      }
    },
    "product_budget": {
      "type": "object",
      "additionalProperties": false,
      "required": ["area_ratio", "independent_from_performer_budget", "role"],
      "properties": {
        "area_ratio": { "type": "number", "minimum": 0.1, "maximum": 1.5 },
        "independent_from_performer_budget": { "const": true },
        "role": { "const": "product_sheet" }
      }
    },
    "assets": {
      "type": "array",
      "minItems": 3,
      "maxItems": 3,
      "prefixItems": [
        { "$ref": "#/$defs/hero" },
        { "$ref": "#/$defs/performerSheet" },
        { "$ref": "#/$defs/productSheet" }
      ],
      "items": false
    },
    "director_batch": {
      "type": "object",
      "additionalProperties": false,
      "required": ["count", "width", "height", "aspect_policy", "role_order"],
      "properties": {
        "count": { "const": 3 },
        "width": { "type": "integer", "minimum": 256, "maximum": 8192 },
        "height": { "type": "integer", "minimum": 256, "maximum": 8192 },
        "aspect_policy": { "const": "preserve_then_neutral_pad" },
        "role_order": { "const": ["performer_hero", "performer_sheet", "product_sheet"] }
      }
    },
    "identity_product_combined_sheet": { "const": false },
    "ready": { "const": true }
  },
  "$defs": {
    "baseAsset": {
      "type": "object",
      "additionalProperties": false,
      "required": ["picture_tag", "role", "sha256", "prepared_role_sha256", "width", "height", "pixel_area_budget", "upscaled"],
      "properties": {
        "picture_tag": { "enum": ["<Picture 1>", "<Picture 2>", "<Picture 3>"] },
        "role": { "enum": ["performer_hero", "performer_sheet", "product_sheet"] },
        "sha256": { "type": "string", "pattern": "^[0-9a-f]{64}$" },
        "prepared_role_sha256": { "type": "string", "pattern": "^[0-9a-f]{64}$" },
        "width": { "type": "integer", "minimum": 1, "maximum": 8192 },
        "height": { "type": "integer", "minimum": 1, "maximum": 8192 },
        "pixel_area_budget": { "type": "integer", "minimum": 1 },
        "upscaled": { "const": false }
      }
    },
    "hero": {
      "allOf": [
        { "$ref": "#/$defs/baseAsset" },
        { "properties": { "picture_tag": { "const": "<Picture 1>" }, "role": { "const": "performer_hero" } } }
      ]
    },
    "performerSheet": {
      "allOf": [
        { "$ref": "#/$defs/baseAsset" },
        { "properties": { "picture_tag": { "const": "<Picture 2>" }, "role": { "const": "performer_sheet" } } }
      ]
    },
    "productSheet": {
      "allOf": [
        { "$ref": "#/$defs/baseAsset" },
        { "properties": { "picture_tag": { "const": "<Picture 3>" }, "role": { "const": "product_sheet" } } }
      ]
    }
  }
}