import { Box } from 'tldraw'
import { convertTldrawShapeToBlurryShape } from '../../shared/format/convertTldrawShapeToBlurryShape'
import { BlurryShapesPart } from '../../shared/schema/PromptPartDefinitions'
import { AgentRequest } from '../../shared/types/AgentRequest'
import { AgentHelpers } from '../AgentHelpers'
import { PromptPartUtil, registerPromptPartUtil } from './PromptPartUtil'

export const BlurryShapesPartUtil = registerPromptPartUtil(
	class BlurryShapesPartUtil extends PromptPartUtil<BlurryShapesPart> {
		static override type = 'blurryShapes' as const

		override getPart(request: AgentRequest, helpers: AgentHelpers): BlurryShapesPart {
			const { editor } = this

			const shapes = editor.getCurrentPageShapesSorted()
			const contextBoundsBox = Box.From(request.bounds)

			// Get all shapes within the agent's viewport
			const shapesInBounds = shapes.filter((shape) => {
				const bounds = editor.getShapeMaskedPageBounds(shape)
				if (!bounds) return false
				return contextBoundsBox.includes(bounds)
			})

			// Convert the shapes to the blurry shape format
			const blurryShapes = shapesInBounds
				.map((shape) => convertTldrawShapeToBlurryShape(editor, shape))
				.filter((s) => s !== null)

			// Apply the offset and round the blurry shapes
			const normalizedBlurryShapes = blurryShapes.map((shape) => {
				const bounds = helpers.roundBox(
					helpers.applyOffsetToBox({
						x: shape.x,
						y: shape.y,
						w: shape.w,
						h: shape.h,
					})
				)
				return { ...shape, x: bounds.x, y: bounds.y, w: bounds.w, h: bounds.h }
			})

			return {
				type: 'blurryShapes',
				shapes: normalizedBlurryShapes,
			}
		}
	}
)