import {stde} from '../stde';
import * as lle from '@ldamle/lle';

class Generator extends stde {
    constructor(freq: number, beginWith: lle.Types.signal.it = 0) {
        let beginWiths = lle.Types.signal.__getArrayIt(beginWith);
        super(
            '%<svg width="100" height="40" viewBox="0 0 200 50" xmlns="http://www.w3.org/2000/svg" stroke="currentColor"><path d="M0 50L60 50L60 20" stroke="currentColor" stroke-width="3" fill="none"/><path d="M60 20L140 20" stroke="currentColor" stroke-width="3" fill="none"/><path d="M140 20L140 50L200 50" stroke="currentColor" stroke-width="3" fill="none"/></svg>',
            ['in'],
            ['out'],
            (a) => {
                return 'z';
            }
        );
        this.props['freq'] = freq;
        let tf = 1 / freq;
        this.props['unstableState'] = (
            beginTime: number,
            endTime: number,
            state: lle.Types.signal.array
        ): lle.Types.signal.timeTable => {
            if (state == '1') {
                let curst =
                    Math.floor(beginTime / tf) % 2 == 0
                        ? beginWiths
                        : beginWiths === '0'
                        ? '1'
                        : '0';
                let curtf = Math.floor(beginTime / tf) * tf + tf;
                let res: lle.Types.signal.timeTable = [
                    {
                        time: beginTime,
                        state: curst
                    }
                ];
                while (curtf < endTime) {
                    curst = curst === '0' ? '1' : '0';
                    res.push({
                        time: curtf,
                        state: curst
                    });
                    curtf += tf;
                }
                return res;
            }
            return [
                {
                    time: beginTime,
                    state: '0'
                }
            ];
        };
    }
    sout(){
        return this.out('out');
    }
    sin(connection: lle.Connection){
        return this.in('in', connection);
    }
}

function generator(freq: number, beginWith: lle.Types.signal.it = 0) {
    return new Generator(freq, beginWith);
}

export {Generator, generator};