// Toggle-button 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
class ToggleButton extends BaseComponent {
  private pressed = false;
  private forcephysical = false;
  private text: NodeListOf<Element> | undefined;
  private a: WireState;
  private q: WireState;
  private p1: WireState;
  private p2: WireState;
  private p3: WireState;
  private p4: WireState;
  constructor(simulator: Simulator, id: string, param: BaseComponentParam) {
    super(simulator, id, param);
    this.pins.set('a', new TriState(this, 0, 0, undefined, { id: id + '-a' }));
    this.pins.set('q', new TriState(this, 0, 0, undefined, { id: id + '-q' }));
    this.pins.set('p1', new TriState(this, 0, 0, undefined, { id: id + '-p1' }));
    this.pins.set('p2', new TriState(this, 10.16, 0, undefined, { id: id + '-p2' }));
    this.pins.set(
      'p3',
      new TriState(this, 10.16, -5.08 * 3, undefined, {
        id: id + '-p3',
      })
    );
    this.pins.set('p4', new TriState(this, 0, -5.08 * 3));
    if (this.extraclass && this.extraclass.indexOf('forcephysical') !== -1) {
      this.forcephysical = true;
    }
    this.a = WireState.float;
    this.q = WireState.float;
    this.p1 = WireState.float;
    this.p2 = WireState.float;
    this.p3 = WireState.float;
    this.p4 = WireState.float;
  }

  setup(canvas: SVGElement) {
    super.doSetup('togglebutton', canvas);
    if (this.element !== null) {
      this.text = this.element.querySelectorAll('.inner');
      this.element.addEventListener('mousedown', this.activate.bind(this));
    }
    if (this.breadboard) {
      this.simulator.wire(null, [this.getPin('p1'), this.breadboard.getPin('E' + this.col)]);
      this.simulator.wire(null, [this.getPin('p2'), this.breadboard.getPin('E' + (2 + this.col))]);
      this.simulator.wire(null, [this.getPin('p3'), this.breadboard.getPin('F' + (2 + this.col))]);
      this.simulator.wire(null, [this.getPin('p4'), this.breadboard.getPin('F' + this.col)]);
    }
  }

  activate(e: Event) {
    //  console.log(e);
    e.preventDefault();
    this.pressed = !this.pressed;
    // document.text = this.text;
    if (this.breadboard || this.forcephysical) {
      if (this.text !== undefined) {
        this.text[1].textContent = this.pressed ? '1' : '0';
      }
    } else {
      if (this.text !== undefined) {
        this.text[0].textContent = this.pressed ? '---' : '] [';
      }
    }
    this.simulator.manualtick();
  }

  io() {
    this.a = this.getPin('a').getAndReset();
    this.p1 = this.getPin('p1').getAndReset();
    this.p2 = this.getPin('p2').getAndReset();
    this.p3 = this.getPin('p3').getAndReset();
    this.p4 = this.getPin('p4').getAndReset();
    //  console.log(this.id, "input:", this.state.p1, this.state.p4);
  }

  update() {
    if (this.breadboard || this.forcephysical) {
      let top = this.p3;
      if (top !== WireState.float) {
        if (this.p4 !== WireState.float && this.p4 !== top) {
          console.log('boom ToggleButton top', this.id);
        }
      } else {
        top = this.p4;
      }
      const bottom = this.p1;
      if (bottom !== WireState.float) {
        if (this.p2 !== WireState.float && this.p2 !== bottom) {
          console.log('boom ToggleButton buttom', this.id);
        }
      } else {
        top = this.p2;
      }
      if (this.pressed) {
        let mod = false;
        if (top === WireState.float || top === WireState.up || top === WireState.down) {
          const old = top;
          this.p3 = bottom;
          this.p4 = bottom;
          this.getPin('p3').setState(bottom);
          this.getPin('p4').setState(bottom);
          mod = bottom !== old;
        } else if (bottom === WireState.float || bottom === WireState.up || bottom === WireState.down) {
          const old = bottom;
          this.p1 = top;
          this.p2 = top;
          this.getPin('p1').setState(top);
          this.getPin('p2').setState(top);
          mod = top !== <WireState>old;
        } else {
          if (top === bottom) {
            this.p1 = top;
            this.p2 = top;
            this.p3 = top;
            this.p4 = top;
            this.getPin('p1').setState(top);
            this.getPin('p2').setState(top);
            this.getPin('p3').setState(top);
            this.getPin('p4').setState(top);
          } else {
            console.log('boom togglebutton', this.id, top, bottom);
          }
        }
        return mod;
      } else {
        return false;
      }
    } else {
      const oldstate = this.q;
      const q = this.pressed ? this.a : WireState.float;
      this.q = q;
      this.getPin('q').setState(q);
      return oldstate !== q;
    }
  }
}