/*
 * SmoothEdgesTool.js
 *
 * @author realor
 */

import { Tool } from './Tool.js'
import { Selection } from '../utils/Selection.js'
import { ObjectUtils } from '../utils/ObjectUtils.js'
import { Solid } from '../core/Solid.js'
import { Controls } from '../ui/Controls.js'
import * as THREE from '../lib/three.module.js'

class SmoothEdgesTool extends Tool {
    constructor(application, options) {
        super(application)
        this.name = 'smooth_edges'
        this.label = 'tool.smooth_edges.label'
        this.className = 'smooth_edges'
        this.setOptions(options)

        this.createPanel()
    }

    createPanel() {
        const application = this.application

        this.panel = application.createPanel(this.label, 'left', 'panel_smooth_edges')
        this.panel.preferredHeight = 100

        this.smoothAngleElem = Controls.addNumberField(this.panel.bodyElem, 'smooth_angle', 'label.smooth_angle', 20, 'row')

        this.smoothAngleElem.style.width = '50px'
        this.smoothAngleElem.min = 0
        this.smoothAngleElem.max = 180

        this.applyButton = Controls.addButton(this.panel.bodyElem, 'apply_smooth', 'button.apply', () => this.applySmooth())
    }

    activate() {
        this.panel.visible = true
    }

    deactivate() {
        this.panel.visible = false
    }

    applySmooth() {
        let smoothAngle = parseFloat(this.smoothAngleElem.value)
        if (smoothAngle < 0) smoothAngle = 0
        else if (smoothAngle > 180) smoothAngle = 180

        const changed = []

        let roots = this.application.selection.roots
        for (let root of roots) {
            this.traverse(root, smoothAngle, changed)
        }
        this.application.notifyObjectsChanged(changed, this)
    }

    traverse(object, smoothAngle, changed) {
        if (object instanceof Solid) {
            let objectChanged = false

            if (object.geometry.smoothAngle !== smoothAngle) {
                object.geometry.smoothAngle = smoothAngle
                object.geometry.updateBuffers()
                objectChanged = true
            }

            if (object.builder && object.builder.smoothAngle !== undefined) {
                if (object.builder.smoothAngle !== smoothAngle) {
                    object.builder.smoothAngle = smoothAngle
                    objectChanged = true
                }
            }
            if (objectChanged) changed.push(object)
        } else {
            let children = object.children
            for (let child of children) {
                this.traverse(child, smoothAngle, changed)
            }
        }
    }
}

export { SmoothEdgesTool }