import { $ } from './jsmind.dom.js'

const plugin_data = {
    plugins: [],
}

export function register(plugin) {
    if (!(plugin instanceof Plugin)) {
        throw new Error('can not register plugin, it is not an instance of Plugin')
    }
    if (plugin_data.plugins.map((p) => p.name).includes(plugin.name)) {
        throw new Error('can not register plugin ' + plugin.name + ': plugin name already exist')
    }
    plugin_data.plugins.push(plugin)
}

export function apply(jm, options) {
    $.w.setTimeout(function () {
        _apply(jm, options)
    }, 0)
}

function _apply(jm, options) {
    plugin_data.plugins.forEach((p) => p.fn_init(jm, options[p.name]))
}

export class Plugin {
    // function fn_init(jm, options){ }
    constructor(name, fn_init) {
        if (!name) {
            throw new Error('plugin must has a name')
        }
        if (!fn_init || typeof fn_init !== 'function') {
            throw new Error('plugin must has an init function')
        }
        this.name = name
        this.fn_init = fn_init
    }
}