import { formatWithOptions } from 'node:util';
import { sep } from 'node:path';

function parseStack(stack, message) {
  const cwd = process.cwd() + sep;
  const lines = stack.split("\n").splice(message.split("\n").length).map((l) => l.trim().replace("file://", "").replace(cwd, ""));
  return lines;
}

function writeStream(data, stream) {
  const write = stream.__write || stream.write;
  return write.call(stream, data);
}

const bracket = (x) => x ? `[${x}]` : "";
class BasicReporter {
  formatStack(stack, message, opts) {
    const indent = "  ".repeat((opts?.errorLevel || 0) + 1);
    return indent + parseStack(stack, message).join(`
${indent}`);
  }
  formatError(err, opts) {
    const message = err.message ?? formatWithOptions(opts, err);
    const stack = err.stack ? this.formatStack(err.stack, message, opts) : "";
    const level = opts?.errorLevel || 0;
    const causedPrefix = level > 0 ? `${"  ".repeat(level)}[cause]: ` : "";
    const causedError = err.cause ? "\n\n" + this.formatError(err.cause, { ...opts, errorLevel: level + 1 }) : "";
    return causedPrefix + message + "\n" + stack + causedError;
  }
  formatArgs(args, opts) {
    const _args = args.map((arg) => {
      if (arg && typeof arg.stack === "string") {
        return this.formatError(arg, opts);
      }
      return arg;
    });
    return formatWithOptions(opts, ..._args);
  }
  formatDate(date, opts) {
    return opts.date ? date.toLocaleTimeString() : "";
  }
  filterAndJoin(arr) {
    return arr.filter(Boolean).join(" ");
  }
  formatLogObj(logObj, opts) {
    const message = this.formatArgs(logObj.args, opts);
    if (logObj.type === "box") {
      return "\n" + [
        bracket(logObj.tag),
        logObj.title && logObj.title,
        ...message.split("\n")
      ].filter(Boolean).map((l) => " > " + l).join("\n") + "\n";
    }
    return this.filterAndJoin([
      bracket(logObj.type),
      bracket(logObj.tag),
      message
    ]);
  }
  log(logObj, ctx) {
    const line = this.formatLogObj(logObj, {
      columns: ctx.options.stdout.columns || 0,
      ...ctx.options.formatOptions
    });
    return writeStream(
      line + "\n",
      logObj.level < 2 ? ctx.options.stderr || process.stderr : ctx.options.stdout || process.stdout
    );
  }
}

export { BasicReporter as B, parseStack as p };