import { describe, it, expect } from "vitest";
import { parseCommand, type Command } from "@/utils/command";

describe("parseCommand", () => {
  it("should parse empty string", () => {
    const result = parseCommand("");
    expect(result).toEqual({
      name: "",
      flags: {},
      options: {},
      params: [],
    });
  });

  it("should parse command name only", () => {
    const result = parseCommand("move");
    expect(result).toEqual({
      name: "move",
      flags: {},
      options: {},
      params: [],
    });
  });

  it("should parse command with params", () => {
    const result = parseCommand("move meeple1 region1");
    expect(result).toEqual({
      name: "move",
      flags: {},
      options: {},
      params: ["meeple1", "region1"],
    });
  });

  it("should parse command with long flags", () => {
    const result = parseCommand("move meeple1 --force --quiet");
    expect(result).toEqual({
      name: "move",
      flags: { force: true, quiet: true },
      options: {},
      params: ["meeple1"],
    });
  });

  it("should parse command with short flags", () => {
    const result = parseCommand("move meeple1 -f -q");
    expect(result).toEqual({
      name: "move",
      flags: { f: true, q: true },
      options: {},
      params: ["meeple1"],
    });
  });

  it("should parse command with long options", () => {
    const result = parseCommand("move meeple1 --x 10 --y 20");
    expect(result).toEqual({
      name: "move",
      flags: {},
      options: { x: "10", y: "20" },
      params: ["meeple1"],
    });
  });

  it("should parse command with short options", () => {
    const result = parseCommand("move meeple1 -x 10 -y 20");
    expect(result).toEqual({
      name: "move",
      flags: {},
      options: { x: "10", y: "20" },
      params: ["meeple1"],
    });
  });

  it("should parse command with mixed flags和选项", () => {
    const result = parseCommand("move meeple1 region1 --force -x 10 -q");
    expect(result).toEqual({
      name: "move",
      flags: { force: true, q: true },
      options: { x: "10" },
      params: ["meeple1", "region1"],
    });
  });

  it("should handle extra whitespace", () => {
    const result = parseCommand("  move   meeple1   --force  ");
    expect(result).toEqual({
      name: "move",
      flags: { force: true },
      options: {},
      params: ["meeple1"],
    });
  });

  it("should parse complex command", () => {
    const result = parseCommand(
      "place meeple1 board --x 5 --y 3 --rotate 90 --force",
    );
    expect(result).toEqual({
      name: "place",
      flags: { force: true },
      options: { x: "5", y: "3", rotate: "90" },
      params: ["meeple1", "board"],
    });
  });

  it("should treat negative number as option value", () => {
    const result = parseCommand("set --value -10");
    expect(result).toEqual({
      name: "set",
      flags: {},
      options: { value: "-10" },
      params: [],
    });
  });

  it("should parse quoted string with double quotes", () => {
    const result = parseCommand('place tile "large castle" --x 5');
    expect(result).toEqual({
      name: "place",
      flags: {},
      options: { x: "5" },
      params: ["tile", "large castle"],
    });
  });

  it("should parse quoted string with single quotes", () => {
    const result = parseCommand("place tile 'large castle' --x 5");
    expect(result).toEqual({
      name: "place",
      flags: {},
      options: { x: "5" },
      params: ["tile", "large castle"],
    });
  });

  it("should handle escaped quotes", () => {
    const result = parseCommand('say "hello \\"world\\""');
    expect(result).toEqual({
      name: "say",
      flags: {},
      options: {},
      params: ['hello "world"'],
    });
  });

  it("should handle escaped backslash", () => {
    const result = parseCommand('set path "C:\\\\Users"');
    expect(result).toEqual({
      name: "set",
      flags: {},
      options: {},
      params: ["path", "C:\\Users"],
    });
  });

  it("should handle mixed quotes", () => {
    const result = parseCommand("cmd \"hello world\" 'foo bar' --flag");
    expect(result).toEqual({
      name: "cmd",
      flags: { flag: true },
      options: {},
      params: ["hello world", "foo bar"],
    });
  });

  it("should handle quote in middle of argument", () => {
    const result = parseCommand('cmd "hello\'s world"');
    expect(result).toEqual({
      name: "cmd",
      flags: {},
      options: {},
      params: ["hello's world"],
    });
  });
});