import t, c
import stdio
import circ_a
import circ_b


# ============================================================
# 循环引用测试入口
#
# 验证 A → B → A 的循环引用能正确编译和运行：
# - Test 1: ClassA.MakeB() 创建 ClassB 实例
# - Test 2: ClassB.MakeA() 创建 ClassA 实例
# - Test 3: 值传递链 A(20) → B → A
# ============================================================


def circ_test() -> int:
    stdio.printf("circ: === Test Start ===\n")

    # ============================================================
    # Test 1: 创建 ClassA，调用 MakeB 获取 ClassB 实例
    # ============================================================
    stdio.printf("circ: === Test 1: A.MakeB() ===\n")

    a: circ_a.ClassA | t.CPtr = circ_a.ClassA(10)
    av: int = a.GetValue()
    stdio.printf("circ: a.GetValue()=%d (expected 10)\n", av)
    if av != 10:
        stdio.printf("[FAIL] a.GetValue()=%d expected 10\n", av)
        return 1

    b: circ_b.ClassB | t.CPtr = a.MakeB()
    bv: int = b.GetValue()
    stdio.printf("circ: b.GetValue()=%d (expected 10)\n", bv)
    if bv != 10:
        stdio.printf("[FAIL] b.GetValue()=%d expected 10\n", bv)
        return 1

    # ============================================================
    # Test 2: 从 B 调用 MakeA 获取 ClassA 实例
    # ============================================================
    stdio.printf("circ: === Test 2: B.MakeA() ===\n")

    a2: circ_a.ClassA | t.CPtr = b.MakeA()
    av2: int = a2.GetValue()
    stdio.printf("circ: a2.GetValue()=%d (expected 10)\n", av2)
    if av2 != 10:
        stdio.printf("[FAIL] a2.GetValue()=%d expected 10\n", av2)
        return 1

    # ============================================================
    # Test 3: 值传递链 A(20) → B → A
    # ============================================================
    stdio.printf("circ: === Test 3: value chain A(20)->B->A ===\n")

    a3: circ_a.ClassA | t.CPtr = circ_a.ClassA(20)
    b3: circ_b.ClassB | t.CPtr = a3.MakeB()
    a4: circ_a.ClassA | t.CPtr = b3.MakeA()
    final: int = a4.GetValue()
    stdio.printf("circ: final=%d (expected 20)\n", final)
    if final != 20:
        stdio.printf("[FAIL] final=%d expected 20\n", final)
        return 1

    stdio.printf("circ: === All Tests Passed ===\n")
    return 0