import { tokenizeInline } from "./tokenizeInline";

export const tokenizeLine = (
  line: string,
  previous?: SingleLineToken,
): SingleLineToken => {
  for (const token of singleLineTokens) {
    if (!token.rx.test(line)) continue;

    const t = token.create(line);

    if (t.type === "h2") {
    }

    t.line = tokenizeInline(line.replace(token.replaceRx, ""));
    return t;
  }

  if (previous?.mends) {
    previous.raw += " " + line;
    previous.line = tokenizeInline(previous.raw.replace(previous.cfg!.rx, ""));
    return previous;
  }

  return {
    line: tokenizeInline(line),
    type: "text",
    raw: line,
  };
};

export const singleLineTokens: SingleLineCfg[] = [
  {
    rx: /^#\s/,
    create(line) {
      return ({ type: "h1", line, raw: line, cfg: this });
    },
    replaceRx: /^#\s/,
  },
  {
    rx: /^##\s/,
    create(line) {
      return ({ type: "h2", line, raw: line, cfg: this });
    },
    replaceRx: /^##\s/,
  },
  {
    rx: /^###\s/,
    create(line) {
      return ({ type: "h3", line, raw: line, cfg: this });
    },
    replaceRx: /^###\s/,
  },
  {
    rx: /^-\s/,
    create(line) {
      return ({ type: "list1", line, raw: line, mends: true, cfg: this });
    },
    replaceRx: /^-\s/,
    shouldMendNextLine: true,
  },
  {
    rx: /^[\t\s]{2}-\s/,
    create(line) {
      return ({ type: "list2", line, raw: line, mends: true, cfg: this });
    },
    replaceRx: /^[\t\s]{2}-\s/,
    shouldMendNextLine: true,
  },
];