/**
 * Copyright (c) 2019 mol* contributors, licensed under MIT, See LICENSE file for more info.
 *
 * @author Alexander Rose <alexander.rose@weirdbyte.de>
 */

import { Renderable, RenderableState, createRenderable } from '../renderable'
import { WebGLContext } from '../webgl/context';
import { createGraphicsRenderItem } from '../webgl/render-item';
import { GlobalUniformSchema, BaseSchema, AttributeSpec, Values, InternalSchema, SizeSchema, InternalValues, ElementsSpec, ValueSpec, DefineSpec } from './schema';
import { SpheresShaderCode } from '../shader-code';
import { ValueCell } from 'mol-util';

export const SpheresSchema = {
    ...BaseSchema,
    ...SizeSchema,
    aPosition: AttributeSpec('float32', 3, 0),
    aMapping: AttributeSpec('float32', 2, 0),
    elements: ElementsSpec('uint32'),

    padding: ValueSpec('number'),
    dDoubleSided: DefineSpec('boolean'),
}
export type SpheresSchema = typeof SpheresSchema
export type SpheresValues = Values<SpheresSchema>

export function SpheresRenderable(ctx: WebGLContext, id: number, values: SpheresValues, state: RenderableState, materialId: number): Renderable<SpheresValues> {
    const schema = { ...GlobalUniformSchema, ...InternalSchema, ...SpheresSchema }
    const internalValues: InternalValues = {
        uObjectId: ValueCell.create(id),
        uPickable: ValueCell.create(state.pickable ? 1 : 0)
    }
    const shaderCode = SpheresShaderCode
    const renderItem = createGraphicsRenderItem(ctx, 'triangles', shaderCode, schema, { ...values, ...internalValues }, materialId)
    return createRenderable(renderItem, values, state);
}