// src/colors.ts
var namedColors = [
  "black",
  "red",
  "green",
  "yellow",
  "blue",
  "magenta",
  "cyan",
  "white",
  "brightBlack",
  "brightRed",
  "brightGreen",
  "brightYellow",
  "brightBlue",
  "brightMagenta",
  "brightCyan",
  "brightWhite"
];

// src/decorations.ts
var decorations = {
  1: "bold",
  2: "dim",
  3: "italic",
  4: "underline",
  7: "reverse",
  9: "strikethrough"
};

// src/parser.ts
function findSequence(value, position) {
  const nextEscape = value.indexOf("\x1B", position);
  if (nextEscape !== -1) {
    if (value[nextEscape + 1] === "[") {
      const nextClose = value.indexOf("m", nextEscape);
      return {
        sequence: value.substring(nextEscape + 2, nextClose).split(";"),
        startPosition: nextEscape,
        position: nextClose + 1
      };
    }
  }
  return {
    position: value.length
  };
}
function parseColor(sequence) {
  const colorMode = sequence.shift();
  if (colorMode === "2") {
    const rgb = sequence.splice(0, 3).map((x) => Number.parseInt(x));
    if (rgb.length !== 3 || rgb.some((x) => Number.isNaN(x)))
      return;
    return {
      type: "rgb",
      rgb
    };
  } else if (colorMode === "5") {
    const index = sequence.shift();
    if (index) {
      return { type: "table", index: Number(index) };
    }
  }
}
function parseSequence(sequence) {
  const commands = [];
  while (sequence.length > 0) {
    const code = sequence.shift();
    if (!code)
      continue;
    const codeInt = Number.parseInt(code);
    if (Number.isNaN(codeInt))
      continue;
    if (codeInt === 0) {
      commands.push({ type: "resetAll" });
    } else if (codeInt <= 9) {
      const decoration = decorations[codeInt];
      if (decoration) {
        commands.push({
          type: "setDecoration",
          value: decorations[codeInt]
        });
      }
    } else if (codeInt <= 29) {
      const decoration = decorations[codeInt - 20];
      if (decoration) {
        commands.push({
          type: "resetDecoration",
          value: decoration
        });
      }
    } else if (codeInt <= 37) {
      commands.push({
        type: "setForegroundColor",
        value: { type: "named", name: namedColors[codeInt - 30] }
      });
    } else if (codeInt === 38) {
      const color = parseColor(sequence);
      if (color) {
        commands.push({
          type: "setForegroundColor",
          value: color
        });
      }
    } else if (codeInt === 39) {
      commands.push({
        type: "resetForegroundColor"
      });
    } else if (codeInt <= 47) {
      commands.push({
        type: "setBackgroundColor",
        value: { type: "named", name: namedColors[codeInt - 40] }
      });
    } else if (codeInt === 48) {
      const color = parseColor(sequence);
      if (color) {
        commands.push({
          type: "setBackgroundColor",
          value: color
        });
      }
    } else if (codeInt === 49) {
      commands.push({
        type: "resetBackgroundColor"
      });
    } else if (codeInt >= 90 && codeInt <= 97) {
      commands.push({
        type: "setForegroundColor",
        value: { type: "named", name: namedColors[codeInt - 90 + 8] }
      });
    } else if (codeInt >= 100 && codeInt <= 107) {
      commands.push({
        type: "setBackgroundColor",
        value: { type: "named", name: namedColors[codeInt - 100 + 8] }
      });
    }
  }
  return commands;
}
function createAnsiSequenceParser() {
  let foreground = null;
  let background = null;
  let decorations2 = /* @__PURE__ */ new Set();
  return {
    parse(value) {
      const tokens = [];
      let position = 0;
      do {
        const findResult = findSequence(value, position);
        const text = findResult.sequence ? value.substring(position, findResult.startPosition) : value.substring(position);
        if (text.length > 0) {
          tokens.push({
            value: text,
            foreground,
            background,
            decorations: new Set(decorations2)
          });
        }
        if (findResult.sequence) {
          const commands = parseSequence(findResult.sequence);
          for (const styleToken of commands) {
            if (styleToken.type === "resetAll") {
              foreground = null;
              background = null;
              decorations2.clear();
            } else if (styleToken.type === "resetForegroundColor") {
              foreground = null;
            } else if (styleToken.type === "resetBackgroundColor") {
              background = null;
            } else if (styleToken.type === "resetDecoration") {
              decorations2.delete(styleToken.value);
            }
          }
          for (const styleToken of commands) {
            if (styleToken.type === "setForegroundColor") {
              foreground = styleToken.value;
            } else if (styleToken.type === "setBackgroundColor") {
              background = styleToken.value;
            } else if (styleToken.type === "setDecoration") {
              decorations2.add(styleToken.value);
            }
          }
        }
        position = findResult.position;
      } while (position < value.length);
      return tokens;
    }
  };
}
function parseAnsiSequences(value) {
  return createAnsiSequenceParser().parse(value);
}

// src/palette.ts
var defaultNamedColorsMap = {
  black: "#000000",
  red: "#bb0000",
  green: "#00bb00",
  yellow: "#bbbb00",
  blue: "#0000bb",
  magenta: "#ff00ff",
  cyan: "#00bbbb",
  white: "#eeeeee",
  brightBlack: "#555555",
  brightRed: "#ff5555",
  brightGreen: "#00ff00",
  brightYellow: "#ffff55",
  brightBlue: "#5555ff",
  brightMagenta: "#ff55ff",
  brightCyan: "#55ffff",
  brightWhite: "#ffffff"
};
function createColorPalette(namedColorsMap = defaultNamedColorsMap) {
  function namedColor(name) {
    return namedColorsMap[name];
  }
  function rgbColor(rgb) {
    return `#${rgb.map((x) => Math.max(0, Math.min(x, 255)).toString(16).padStart(2, "0")).join("")}`;
  }
  let colorTable;
  function getColorTable() {
    if (colorTable) {
      return colorTable;
    }
    colorTable = [];
    for (let i = 0; i < namedColors.length; i++) {
      colorTable.push(namedColor(namedColors[i]));
    }
    let levels = [0, 95, 135, 175, 215, 255];
    for (let r = 0; r < 6; r++) {
      for (let g = 0; g < 6; g++) {
        for (let b = 0; b < 6; b++) {
          colorTable.push(rgbColor([levels[r], levels[g], levels[b]]));
        }
      }
    }
    let level = 8;
    for (let i = 0; i < 24; i++, level += 10) {
      colorTable.push(rgbColor([level, level, level]));
    }
    return colorTable;
  }
  function tableColor(index) {
    return getColorTable()[index];
  }
  function value(color) {
    switch (color.type) {
      case "named":
        return namedColor(color.name);
      case "rgb":
        return rgbColor(color.rgb);
      case "table":
        return tableColor(color.index);
    }
  }
  return {
    value
  };
}
export {
  createAnsiSequenceParser,
  createColorPalette,
  decorations,
  defaultNamedColorsMap,
  namedColors,
  parseAnsiSequences
};