// 74xx21 emulation component for the LogicSimulator
// Copyright (C) 2022 Sascha Nitsch

// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

// eslint-disable-next-line @typescript-eslint/no-unused-vars
function IC74xx21Init() {
  class IC74xx21 extends DILBase {
    constructor(simulator: Simulator, id: string, param: BaseComponentParam) {
      super(simulator, id, 14, param);
    }

    setup(canvas: SVGElement) {
      super.DILBASEsetup('ic14', canvas, '74xx21');
    }

    update(): boolean {
      if (this.startdelay) {
        --this.startdelay;
        return false;
      }
      if (this.getStateWire('p14') !== WireState.up || this.getStateWire('p7') !== WireState.down) return false; // no power
      let oldstate;
      let mod = false;
      let state;
      oldstate = this.binary(this.getStateWire('p6'), true);
      state =
        this.binary(this.getStateWire('p1'), true) !== false &&
        this.binary(this.getStateWire('p2'), true) !== false &&
        this.binary(this.getStateWire('p4'), true) !== false &&
        this.binary(this.getStateWire('p5'), true) !== false;
      this.getPin('p6').setBool(state);
      mod ||= state !== oldstate;

      oldstate = this.binary(this.getStateWire('p8'), true);
      state =
        this.binary(this.getStateWire('p9'), true) !== false &&
        this.binary(this.getStateWire('p10'), true) !== false &&
        this.binary(this.getStateWire('p12'), true) !== false &&
        this.binary(this.getStateWire('p13'), true) !== false;
      mod ||= state !== oldstate;
      this.getPin('p8').setBool(state);
      return mod;
    }
  }
  window.IC74xx21 = IC74xx21;
}

// eslint-disable-next-line @typescript-eslint/no-unused-vars
function IC74xx21Depends() {
  return 'dilbase';
}