/*
 * ScriptDialog.js
 *
 * @author realor
 */

import { Dialog } from './Dialog.js'
import { Controls } from './Controls.js'
import { GeometryUtils } from '../utils/GeometryUtils.js'
import { ObjectUtils } from '../utils/ObjectUtils.js'
import { MessageDialog } from '../ui/MessageDialog.js'
import { ConfirmDialog } from '../ui/ConfirmDialog.js'
import { Toast } from '../ui/Toast.js'
import { Solid } from '../core/Solid.js'
import { SolidGeometry } from '../core/SolidGeometry.js'
import { Cord } from '../core/Cord.js'
import { CordGeometry } from '../core/CordGeometry.js'
import { Profile } from '../core/Profile.js'
import { ProfileGeometry } from '../core/ProfileGeometry.js'
import { I18N } from '../i18n/I18N.js'
import { Metadata, Result } from '../io/FileService.js'
import * as THREE from '../lib/three.module.js'

class ScriptDialog extends Dialog {
    static GLOBALS = {
        THREE,
        ObjectUtils,
        GeometryUtils,
        Solid,
        SolidGeometry,
        Cord,
        CordGeometry,
        Profile,
        ProfileGeometry,
        Dialog,
        MessageDialog,
        ConfirmDialog,
        Controls,
        Toast
    }

    constructor(application, saveAction) {
        super('title.script_editor')
        this.application = application
        this.setI18N(this.application.i18n)
        this.scriptName = ''
        this.scriptCode = ''
        this.saved = true

        this.setSize(760, 600)

        const editorHeight = 75
        const consoleHeight = 100 - editorHeight

        this.nameField = this.addTextField('name', 'tool.script.name', '', 'script_name')

        this.editorView = this.addCodeEditor('editor', 'label.formula.expression', '', { language: 'javascript', height: 'calc(' + editorHeight + '% - 38px)' })

        this.consoleElem = document.createElement('div')
        this.consoleElem.className = 'console'
        this.consoleElem.style.height = consoleHeight + '%'
        this.bodyElem.appendChild(this.consoleElem)

        this.runButton = this.addButton('run', 'button.run', () => {
            this.endEdition()
            this.run()
        })

        this.saveButton = this.addButton('save', 'button.save', () => {
            this.endEdition()
            saveAction(this.scriptName, this.scriptCode)
        })

        this.saveButton.style.display = saveAction ? '' : 'none'

        this.closeButton = this.addButton('cancel', 'button.close', () => {
            this.endEdition()
            this.hide()
        })

        this.nameField.addEventListener('input', () => {
            this.saveButton.disabled = this.nameField.value.trim().length === 0
        })

        // Make classes needed for scripting always global.
        for (let name in ScriptDialog.GLOBALS) {
            window[name] = ScriptDialog.GLOBALS[name]
        }
    }

    onShow() {
        this.nameField.value = this.scriptName
        const state = this.editorView.state
        const tx = state.update({ changes: { from: 0, to: state.doc.length, insert: this.scriptCode } })
        this.editorView.dispatch(tx)

        this.saveButton.disabled = this.nameField.value.trim().length === 0
        if (this.scriptName === '') {
            this.nameField.focus()
        } else {
            this.editorView.focus()
        }
    }

    clearConsole() {
        this.consoleElem.innerHTML = ''
    }

    run() {
        let error = null
        this.enterConsole()
        try {
            this.consoleElem.innerHTML = ''
            const fn = new Function(this.scriptCode)
            let t0 = Date.now()
            let result = fn()
            let t1 = Date.now()
            if (result instanceof Dialog) {
                result.show()
            } else {
                this.log('info', 'Execution completed in ' + (t1 - t0) + ' ms.')
                if (result !== undefined) this.log('info', 'Result: ' + result)
                Toast.create('message.script_executed')
                    .setI18N(this.application.i18n)
                    .show()
            }
        } catch (ex) {
            this.log('error', ex)
            error = ex
        } finally {
            this.exitConsole()
        }
        return error
    }

    endEdition() {
        this.scriptName = this.nameField.value
        let code = this.editorView.state.doc.toString()
        if (code !== this.scriptCode) {
            this.scriptCode = code
            this.saved = false
        }
    }

    log(className, ...args) {
        for (let arg of args) {
            let message = document.createElement('div')
            message.className = className
            message.innerHTML = String(arg)
            this.consoleElem.appendChild(message)
        }
    }

    enterConsole() {
        this.console = console

        window.console = {
            log: (...args) => this.log('info', ...args),
            info: (...args) => this.log('info', ...args),
            warn: (...args) => this.log('warn', ...args),
            error: (...args) => this.log('error', ...args)
        }
    }

    exitConsole() {
        window.console = this.console
    }
}

export { ScriptDialog }