// 74xx374 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 IC74xx374Init() {
  class IC74xx374 extends DILBase {
    private clock = false;
    private internalstate: boolean[];
    private oldinternalstate: boolean[];
    constructor(simulator: Simulator, id: string, param: BaseComponentParam) {
      super(simulator, id, 20, param);
      this.internalstate = [];
      this.oldinternalstate = [];
      for (let i = 0; i <= 8; ++i) {
        this.internalstate[i] = false;
        this.oldinternalstate[i] = false;
      }
    }

    setup(canvas: SVGElement) {
      super.DILBASEsetup('ic20', canvas, '74xx374');
    }

    update(): boolean {
      if (this.startdelay) {
        --this.startdelay;
        return false;
      }
      if (this.getStateWire('p20') !== WireState.high || this.getStateWire('p10') !== WireState.low) return false; // no power
      if (this.binary(this.getStateWire('p11'), true) && this.clock === false) {
        this.oldinternalstate = this.internalstate;
        this.internalstate[0] = this.binary(this.getStateWire('p3'), true);
        this.internalstate[1] = this.binary(this.getStateWire('p4'), true);
        this.internalstate[2] = this.binary(this.getStateWire('p7'), true);
        this.internalstate[3] = this.binary(this.getStateWire('p8'), true);
        this.internalstate[4] = this.binary(this.getStateWire('p13'), true);
        this.internalstate[5] = this.binary(this.getStateWire('p14'), true);
        this.internalstate[6] = this.binary(this.getStateWire('p16'), true);
        this.internalstate[7] = this.binary(this.getStateWire('p18'), true);
      }
      let mod = false;
      if (this.binary(this.getStateWire('p1'), true) === false) {
        this.getPin('p2').setBool(this.internalstate[0]);
        this.getPin('p5').setBool(this.internalstate[1]);
        this.getPin('p6').setBool(this.internalstate[2]);
        this.getPin('p9').setBool(this.internalstate[3]);
        this.getPin('p12').setBool(this.internalstate[4]);
        this.getPin('p15').setBool(this.internalstate[5]);
        this.getPin('p16').setBool(this.internalstate[6]);
        this.getPin('p19').setBool(this.internalstate[7]);
        mod = this.internalstate !== this.oldinternalstate;
      }
      this.clock = this.binary(this.getStateWire('p11'), true);
      return mod;
    }
  }
  window.IC74xx374 = IC74xx374;
}

// eslint-disable-next-line @typescript-eslint/no-unused-vars
function IC74xx374Depends() {
  return 'dilbase';
}