import { normalizeBoolean, normalizeTextValue } from "./settingsNormalization";

export type QuickCommand =
  | {
      id: string;
      title: string;
      kind: "terminal";
      command: string;
      enabled: boolean;
      pinned: boolean;
    }
  | {
      id: string;
      title: string;
      kind: "url";
      url: string;
      enabled: boolean;
      pinned: boolean;
    };

function isPlainRecord(value: unknown): value is Record<string, unknown> {
  return !!value && typeof value === "object" && !Array.isArray(value);
}

const MAX_QUICK_COMMANDS = 50;
const MAX_QUICK_COMMAND_TITLE_LENGTH = 80;
const MAX_QUICK_COMMAND_VALUE_LENGTH = 10_000;

function normalizeQuickCommand(value: unknown): QuickCommand | null {
  if (!isPlainRecord(value)) {
    return null;
  }

  const id = normalizeTextValue(value.id);
  const title = normalizeTextValue(value.title).slice(
    0,
    MAX_QUICK_COMMAND_TITLE_LENGTH
  );
  const enabled = normalizeBoolean(value.enabled) ?? true;
  const pinned = normalizeBoolean(value.pinned) ?? false;

  if (id.length === 0 || title.length === 0) {
    return null;
  }

  if (value.kind === "terminal") {
    const command = normalizeTextValue(value.command).slice(
      0,
      MAX_QUICK_COMMAND_VALUE_LENGTH
    );
    if (command.length === 0) {
      return null;
    }

    return {
      id,
      title,
      kind: "terminal",
      command,
      enabled,
      pinned
    };
  }

  if (value.kind === "url") {
    const url = normalizeTextValue(value.url).slice(
      0,
      MAX_QUICK_COMMAND_VALUE_LENGTH
    );
    if (url.length === 0) {
      return null;
    }

    return {
      id,
      title,
      kind: "url",
      url,
      enabled,
      pinned
    };
  }

  return null;
}

export function normalizeQuickCommands(value: unknown): QuickCommand[] {
  if (!Array.isArray(value)) {
    return [];
  }

  const normalized: QuickCommand[] = [];
  const seenIds = new Set<string>();

  for (const item of value) {
    const command = normalizeQuickCommand(item);
    if (!command) {
      continue;
    }

    if (seenIds.has(command.id)) {
      continue;
    }

    seenIds.add(command.id);
    normalized.push(command);

    if (normalized.length >= MAX_QUICK_COMMANDS) {
      break;
    }
  }

  return normalized;
}