/*
 * FormulaDialog.js
 *
 * @author realor
 */

import { Dialog } from './Dialog.js'
import { Formula } from '../formula/Formula.js'
import { I18N } from '../i18n/I18N.js'

class FormulaDialog extends Dialog {
    constructor(application, object, formula) {
        super('title.formula')
        this.application = application
        this.object = object
        this.setI18N(this.application.i18n)

        this.setSize(640, 300)

        const path = formula ? formula.path : ''
        const expression = formula ? formula.expression : ''

        this.pathElem = this.addTextField('path', 'label.formula.path', path, 'code')

        this.editorView = this.addCodeEditor('editor', 'label.formula.expression', expression, { language: 'javascript', height: 'calc(100% - 80px)' })

        this.errorElem = document.createElement('div')
        this.errorElem.className = 'error'
        this.bodyElem.appendChild(this.errorElem)

        this.addButton('accept', 'button.accept', () => {
            this.onAccept()
        })

        this.cancelButton = this.addButton('cancel', 'button.cancel', () => this.onCancel())
    }

    onShow() {
        if (this.pathElem.value.length === 0) {
            this.pathElem.focus()
        } else {
            this.editorView.focus()
        }
    }

    onAccept() {
        const path = this.pathElem.value
        const expression = this.editorView.state.doc.toString()

        if (path) {
            if (expression.length > 0) {
                try {
                    Formula.create(this.object, path, expression)
                    this.application.notifyObjectsChanged(this.object, this)
                    this.hide()
                } catch (ex) {
                    this.errorElem.innerHTML = String(ex)
                }
            } else {
                Formula.remove(this.object, path)
                this.application.notifyObjectsChanged(this.object, this)
                this.hide()
            }
        }
    }

    onCancel() {
        this.hide()
    }
}

export { FormulaDialog }