import {
  SYMBOL_ACCENT,
  SYMBOL_FILL,
  SYMBOL_MUTED,
  SYMBOL_STROKE,
  SymbolSvg,
} from "./primitives";

const PNEUMATIC_STROKE_WIDTH = 1.7;
const PNVO001_STROKE = "#8b134f";
const ORIFICE_CONTENT_SCALE = 0.6;
const ORIFICE_CONTENT_CENTER = { x: 32, y: 24 } as const;
const ORIFICE_CONTENT_TRANSFORM = `translate(${ORIFICE_CONTENT_CENTER.x} ${ORIFICE_CONTENT_CENTER.y}) scale(${ORIFICE_CONTENT_SCALE}) translate(${-ORIFICE_CONTENT_CENTER.x} ${-ORIFICE_CONTENT_CENTER.y})`;

function scaledOrificePoint(x: number, y: number) {
  return {
    x:
      ORIFICE_CONTENT_CENTER.x +
      (x - ORIFICE_CONTENT_CENTER.x) * ORIFICE_CONTENT_SCALE,
    y:
      ORIFICE_CONTENT_CENTER.y +
      (y - ORIFICE_CONTENT_CENTER.y) * ORIFICE_CONTENT_SCALE,
  };
}

export const PNVO001_PORT_ANCHORS = {
  physicalLeft: scaledOrificePoint(0, 24),
  physicalRight: scaledOrificePoint(64, 24),
  signal: scaledOrificePoint(24.25, 56),
} as const;

type OrificeControl = "none" | "fixed" | "signal";

function Pnvo001Body({ control }: { control: OrificeControl }) {
  return (
    <g
      data-orifice-control={control}
      data-orifice-family="pnvo001"
      transform={ORIFICE_CONTENT_TRANSFORM}
    >
      <path
        d="M0 24H64"
        data-orifice-part="flow-path"
        stroke={PNVO001_STROKE}
        strokeLinecap="butt"
        strokeWidth="1.5"
      />
      <path
        d="M14.4 11Q31.7 27.5 48.7 11M14.4 38Q31.7 18.2 48.7 38"
        data-orifice-part="curves"
        stroke={PNVO001_STROKE}
        strokeLinecap="round"
        strokeLinejoin="round"
        strokeWidth="2.5"
      />
      {control === "none" ? null : (
        <>
          <path
            d="M16.5 54.5 42 3.5"
            data-orifice-part="opening-arrow"
            stroke={PNVO001_STROKE}
            strokeLinecap="butt"
            strokeWidth="1.5"
          />
          <path
            d="M48 -8 45.8 7.9 37 2.4Z"
            data-orifice-part="opening-arrow-head"
            fill={PNVO001_STROKE}
          />
        </>
      )}
      {control === "signal" ? (
        <path
          d="M24.25 56V39L32 54.5"
          data-orifice-part="signal-control"
          stroke={PNVO001_STROKE}
          strokeLinecap="butt"
          strokeLinejoin="round"
          strokeWidth="1.5"
        />
      ) : null}
    </g>
  );
}

/** 定系数气动孔口（AMESim PNOR001）。 */
export function AmesimPnor001Symbol() {
  return (
    <SymbolSvg className="component-symbol-amesim-pnor001-svg" domain="pneumatic">
      <Pnvo001Body control="none" />
    </SymbolSvg>
  );
}

/** PNVO001 convenience variant whose opening is fixed by a parameter. */
export function AmesimPnvo001FixedSymbol() {
  return (
    <SymbolSvg
      className="component-symbol-amesim-pnvo001-fixed-svg"
      domain="pneumatic"
    >
      <Pnvo001Body control="fixed" />
    </SymbolSvg>
  );
}

/** Signal-modulated pneumatic orifice (AMESim PNVO001 / pn_morifice). */
export function AmesimPnvo001SignalSymbol() {
  return (
    <SymbolSvg
      className="component-symbol-amesim-pnvo001-signal-svg"
      domain="pneumatic"
    >
      <Pnvo001Body control="signal" />
    </SymbolSvg>
  );
}

type PipeSection = "C" | "R";

function PipeNetworkBody({ sections }: { sections: readonly PipeSection[] }) {
  const left = 9;
  const right = 55;
  const top = 13;
  const bottom = 35;
  const sectionWidth = (right - left) / sections.length;

  return (
    <>
      <path
        d="M2 24h7M55 24h7"
        stroke={SYMBOL_STROKE}
        strokeLinecap="round"
        strokeWidth={PNEUMATIC_STROKE_WIDTH}
      />
      <rect
        fill={SYMBOL_FILL}
        height={bottom - top}
        rx="2"
        stroke={SYMBOL_STROKE}
        strokeWidth={PNEUMATIC_STROKE_WIDTH}
        width={right - left}
        x={left}
        y={top}
      />
      {sections.slice(1).map((_, index) => {
        const x = left + sectionWidth * (index + 1);
        return (
          <path
            d={`M${x} ${top + 2}v${bottom - top - 4}`}
            key={x}
            stroke={SYMBOL_MUTED}
            strokeWidth="1.1"
          />
        );
      })}
      {sections.map((section, index) => (
        <text
          dominantBaseline="central"
          fill={section === "R" ? SYMBOL_ACCENT : SYMBOL_MUTED}
          fontFamily="Arial, sans-serif"
          fontSize="9"
          fontWeight="700"
          key={`${section}-${index}`}
          textAnchor="middle"
          x={left + sectionWidth * (index + 0.5)}
          y="24"
        >
          {section}
        </text>
      ))}
    </>
  );
}

/** Pure pneumatic resistance line (AMESim PNL00R). */
export function AmesimPnl00rSymbol() {
  return (
    <SymbolSvg className="component-symbol-amesim-pnl00r-svg" domain="pneumatic">
      <PipeNetworkBody sections={["R"]} />
    </SymbolSvg>
  );
}

/** C-R dynamic pneumatic line (AMESim PNL0001). */
export function AmesimPnl0001Symbol() {
  return (
    <SymbolSvg className="component-symbol-amesim-pnl0001-svg" domain="pneumatic">
      <PipeNetworkBody sections={["C", "R"]} />
    </SymbolSvg>
  );
}

/** R-C-R dynamic pneumatic line (AMESim PNL0002). */
export function AmesimPnl0002Symbol() {
  return (
    <SymbolSvg className="component-symbol-amesim-pnl0002-svg" domain="pneumatic">
      <PipeNetworkBody sections={["R", "C", "R"]} />
    </SymbolSvg>
  );
}

/** C-R-C dynamic pneumatic line (AMESim PNL0003). */
export function AmesimPnl0003Symbol() {
  return (
    <SymbolSvg className="component-symbol-amesim-pnl0003-svg" domain="pneumatic">
      <PipeNetworkBody sections={["C", "R", "C"]} />
    </SymbolSvg>
  );
}

function JunctionTerminal({ x, y }: { x: number; y: number }) {
  return (
    <circle
      cx={x}
      cy={y}
      fill={SYMBOL_FILL}
      r="2"
      stroke={SYMBOL_STROKE}
      strokeWidth="1.3"
    />
  );
}

/** Three-port pneumatic junction with one inlet-side and two outlet-side ports. */
export function AmesimPn3Node2Symbol() {
  return (
    <SymbolSvg className="component-symbol-amesim-pn3node2-svg" domain="pneumatic">
      <path
        d="M4 24h25M29 24C41 24 42 12 60 12M29 24c12 0 13 12 31 12"
        stroke={SYMBOL_STROKE}
        strokeLinecap="round"
        strokeLinejoin="round"
        strokeWidth={PNEUMATIC_STROKE_WIDTH}
      />
      <circle cx="29" cy="24" fill={SYMBOL_ACCENT} r="3" />
      <JunctionTerminal x={3} y={24} />
      <JunctionTerminal x={61} y={12} />
      <JunctionTerminal x={61} y={36} />
    </SymbolSvg>
  );
}

/** Four-port pneumatic junction with one inlet-side and three outlet-side ports. */
export function AmesimP4Node2Symbol() {
  return (
    <SymbolSvg className="component-symbol-amesim-p4node2-svg" domain="pneumatic">
      <path
        d="M4 24h24M28 24C40 24 42 8 60 8M28 24h32M28 24c12 0 14 16 32 16"
        stroke={SYMBOL_STROKE}
        strokeLinecap="round"
        strokeLinejoin="round"
        strokeWidth={PNEUMATIC_STROKE_WIDTH}
      />
      <circle cx="28" cy="24" fill={SYMBOL_ACCENT} r="3" />
      <JunctionTerminal x={3} y={24} />
      <JunctionTerminal x={61} y={8} />
      <JunctionTerminal x={61} y={24} />
      <JunctionTerminal x={61} y={40} />
    </SymbolSvg>
  );
}