import os
import time
import unittest
from types import SimpleNamespace

from sglang.test.ci.ci_register import register_amd_ci
from sglang.test.few_shot_gsm8k import run_eval
from sglang.test.server_fixtures.disaggregation_fixture import (
    PDDisaggregationServerBase,
)
from sglang.test.test_utils import (
    DEFAULT_MODEL_NAME_FOR_TEST,
    DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH,
    popen_launch_pd_server,
    try_cached_model,
)

register_amd_ci(est_time=600, suite="stage-b-test-large-8-gpu-35x-disaggregation-amd")


class TestDisaggregationPrefillPPAccuracy(PDDisaggregationServerBase):
    @classmethod
    def setUpClass(cls):
        super().setUpClass()
        # set up ROCm env
        os.environ["SGLANG_USE_AITER"] = "1"
        rdma_env = os.environ.get("SGLANG_TEST_RDMA_DEVICE")

        if rdma_env:
            cls.rdma_devices = ["--disaggregation-ib-device", rdma_env]
            print(f"Found RDMA devices in env: {rdma_env}")
        else:
            print("SGLANG_TEST_RDMA_DEVICE is not set! Running without RDMA.")
            cls.rdma_devices = []

        cls.model = try_cached_model(DEFAULT_MODEL_NAME_FOR_TEST)

        # Non blocking start servers
        cls.start_prefill()
        cls.start_decode()

        # Block until both
        cls.wait_server_ready(cls.prefill_url + "/health", process=cls.process_prefill)
        cls.wait_server_ready(cls.decode_url + "/health", process=cls.process_decode)

        cls.launch_lb()

    @classmethod
    def start_prefill(cls):
        prefill_args = [
            "--trust-remote-code",
            "--disaggregation-mode",
            "prefill",
            "--tp-size",
            "2",
            "--pp-size",
            "2",
            "--disable-overlap-schedule",
            "--attention-backend",
            "aiter",
        ]
        prefill_args += cls.transfer_backend + cls.rdma_devices
        cls.process_prefill = popen_launch_pd_server(
            cls.model,
            cls.prefill_url,
            timeout=DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH,
            other_args=prefill_args,
        )

    @classmethod
    def start_decode(cls):
        decode_args = [
            "--trust-remote-code",
            "--disaggregation-mode",
            "decode",
            "--tp-size",
            "2",
            "--base-gpu-id",
            "4",
            "--attention-backend",
            "aiter",
        ]
        decode_args += cls.transfer_backend + cls.rdma_devices
        cls.process_decode = popen_launch_pd_server(
            cls.model,
            cls.decode_url,
            timeout=DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH,
            other_args=decode_args,
        )

    def test_gsm8k(self):
        args = SimpleNamespace(
            num_shots=5,
            data_path=None,
            num_questions=200,
            max_new_tokens=512,
            parallel=128,
            host=f"http://{self.base_host}",
            port=int(self.lb_port),
        )
        metrics = run_eval(args)
        print(f"{metrics=}")

        self.assertGreater(metrics["accuracy"], 0.70)
        # Wait a little bit so that the memory check happens.
        time.sleep(5)


# register_amd_ci(est_time=200, suite="stage-c-test-large-8-gpu-amd")
class TestDisaggregationPrefillPPDynamicChunkAccuracy(PDDisaggregationServerBase):
    @classmethod
    def setUpClass(cls):
        super().setUpClass()
        # set up ROCm env
        os.environ["SGLANG_USE_AITER"] = "1"
        rdma_env = os.environ.get("SGLANG_TEST_RDMA_DEVICE")

        if rdma_env:
            cls.rdma_devices = ["--disaggregation-ib-device", rdma_env]
            print(f"Found RDMA devices in env: {rdma_env}")
        else:
            print("SGLANG_TEST_RDMA_DEVICE is not set! Running without RDMA.")
            cls.rdma_devices = []

        cls.model = try_cached_model(DEFAULT_MODEL_NAME_FOR_TEST)

        # Non blocking start servers
        cls.start_prefill()
        cls.start_decode()

        # Block until both
        cls.wait_server_ready(cls.prefill_url + "/health", process=cls.process_prefill)
        cls.wait_server_ready(cls.decode_url + "/health", process=cls.process_decode)

        cls.launch_lb()

    @classmethod
    def start_prefill(cls):
        prefill_args = [
            "--trust-remote-code",
            "--disaggregation-mode",
            "prefill",
            "--tp-size",
            "2",
            "--pp-size",
            "2",
            "--disable-overlap-schedule",
            "--enable-dynamic-chunking",
            "--attention-backend",
            "aiter",
        ]
        prefill_args += cls.transfer_backend + cls.rdma_devices
        cls.process_prefill = popen_launch_pd_server(
            cls.model,
            cls.prefill_url,
            timeout=DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH,
            other_args=prefill_args,
        )

    @classmethod
    def start_decode(cls):
        decode_args = [
            "--trust-remote-code",
            "--disaggregation-mode",
            "decode",
            "--tp-size",
            "2",
            "--base-gpu-id",
            "4",
            "--attention-backend",
            "aiter",
        ]
        decode_args += cls.transfer_backend + cls.rdma_devices
        cls.process_decode = popen_launch_pd_server(
            cls.model,
            cls.decode_url,
            timeout=DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH,
            other_args=decode_args,
        )

    def test_gsm8k(self):
        args = SimpleNamespace(
            num_shots=5,
            data_path=None,
            num_questions=200,
            max_new_tokens=512,
            parallel=128,
            host=f"http://{self.base_host}",
            port=int(self.lb_port),
        )
        metrics = run_eval(args)
        print(f"{metrics=}")

        self.assertGreater(metrics["accuracy"], 0.70)
        # Wait a little bit so that the memory check happens.
        time.sleep(5)


# register_amd_ci(est_time=200, suite="stage-c-test-large-8-gpu-amd")
class TestDisaggregationDecodePPAccuracy(PDDisaggregationServerBase):
    @classmethod
    def setUpClass(cls):
        super().setUpClass()
        # set up ROCm env
        os.environ["SGLANG_USE_AITER"] = "1"
        rdma_env = os.environ.get("SGLANG_TEST_RDMA_DEVICE")

        if rdma_env:
            cls.rdma_devices = ["--disaggregation-ib-device", rdma_env]
            print(f"Found RDMA devices in env: {rdma_env}")
        else:
            print("SGLANG_TEST_RDMA_DEVICE is not set! Running without RDMA.")
            cls.rdma_devices = []

        cls.model = try_cached_model(DEFAULT_MODEL_NAME_FOR_TEST)

        # Non blocking start servers
        cls.start_prefill()
        cls.start_decode()

        # Block until both
        cls.wait_server_ready(cls.prefill_url + "/health", process=cls.process_prefill)
        cls.wait_server_ready(cls.decode_url + "/health", process=cls.process_decode)

        cls.launch_lb()

    @classmethod
    def start_prefill(cls):
        prefill_args = [
            "--trust-remote-code",
            "--disaggregation-mode",
            "prefill",
            "--tp-size",
            "2",
            "--pp-size",
            "2",
            "--disable-overlap-schedule",
            "--attention-backend",
            "aiter",
        ]
        prefill_args += cls.transfer_backend + cls.rdma_devices
        cls.process_prefill = popen_launch_pd_server(
            cls.model,
            cls.prefill_url,
            timeout=DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH,
            other_args=prefill_args,
        )

    @classmethod
    def start_decode(cls):
        decode_args = [
            "--trust-remote-code",
            "--disaggregation-mode",
            "decode",
            "--tp-size",
            "2",
            "--pp-size",
            "2",
            "--base-gpu-id",
            "4",
            "--attention-backend",
            "aiter",
        ]
        decode_args += cls.transfer_backend + cls.rdma_devices
        cls.process_decode = popen_launch_pd_server(
            cls.model,
            cls.decode_url,
            timeout=DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH,
            other_args=decode_args,
        )

    def test_gsm8k(self):
        args = SimpleNamespace(
            num_shots=5,
            data_path=None,
            num_questions=200,
            max_new_tokens=512,
            parallel=128,
            host=f"http://{self.base_host}",
            port=int(self.lb_port),
        )
        metrics = run_eval(args)
        print(f"{metrics=}")

        self.assertGreater(metrics["accuracy"], 0.70)
        # Wait a little bit so that the memory check happens.
        time.sleep(5)


if __name__ == "__main__":
    unittest.main()