#!/usr/bin/env python3
#
# Copyright (C) Advanced Micro Devices. All rights reserved.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to
# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
# the Software, and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
"""GPU thermal: fan speed set."""

import unittest

import common.common as common
from common.common import amdsmi


class TestGpuThermal(unittest.TestCase):
    @classmethod
    def setUpClass(cls):
        cls.common = common.Common(common.verbose)

    @classmethod
    def tearDownClass(cls):
        try:
            amdsmi.amdsmi_shut_down()
        except amdsmi.AmdSmiLibraryException:
            pass

    def setUp(self):
        self.raise_exception = None
        self.common.amdsmi_smart_init()
        self.common.processors = amdsmi.amdsmi_get_processor_handles()

    def tearDown(self):
        amdsmi.amdsmi_shut_down()

    def test_gpu_fan_speed(self):
        self.common.print_func_name("")

        for i, gpu in enumerate(self.common.processors):
            self.common.print_device_header(i)

            found_error = False

            # Set invalid fan speed
            fan_speed = -1
            msg = f"\t### amdsmi_set_gpu_fan_speed(gpu={i}, index=0, fan_speed={fan_speed}):"
            try:
                ret = amdsmi.amdsmi_set_gpu_fan_speed(gpu, 0, fan_speed)
                self.common.print(msg, ret)
                self.common.check_ret("", "", self.common.PASS)
            except (amdsmi.AmdSmiLibraryException, amdsmi.AmdSmiParameterException) as e:
                if self.common.check_ret(msg, e, self.common.ANY_FAIL):
                    self.raise_exception = e

            # Get current fan speed
            msg = f"\t### amdsmi_get_gpu_fan_speed(gpu={i}, index=0):"
            try:
                fan_speed_orig = amdsmi.amdsmi_get_gpu_fan_speed(gpu, 0)
                self.common.print(msg, fan_speed_orig)
                self.common.check_ret("", "", self.common.PASS)
            except (amdsmi.AmdSmiLibraryException, amdsmi.AmdSmiParameterException) as e:
                if self.common.check_ret(msg, e, self.common.PASS):
                    self.raise_exception = e
                found_error = True

            if found_error:
                continue

            # Verify max fan speed returns a sensible value
            fan_speed_max = 0
            msg = f"\t### amdsmi_get_gpu_fan_speed_max(gpu={i}, index=0):"
            try:
                fan_speed_max = amdsmi.amdsmi_get_gpu_fan_speed_max(gpu, 0)
                self.common.print(msg, fan_speed_max)
                self.common.check_ret("", "", self.common.PASS)
                self.assertGreater(
                    fan_speed_max, 0, f"Max fan speed must be > 0, got {fan_speed_max}"
                )
                # Detect gpu_od interface to set appropriate max threshold
                gpu_bdf = amdsmi.amdsmi_get_gpu_device_bdf(gpu)
                has_gpu_od = common.has_gpu_od_interface(gpu_bdf)
                if has_gpu_od:
                    self.assertLessEqual(
                        fan_speed_max,
                        100,
                        f"gpu_od max fan speed must be <= 100, got {fan_speed_max}",
                    )
                else:
                    self.assertLessEqual(
                        fan_speed_max, 255, f"Max fan speed must be <= 255, got {fan_speed_max}"
                    )
            except (amdsmi.AmdSmiLibraryException, amdsmi.AmdSmiParameterException) as e:
                if self.common.check_ret(msg, e, self.common.PASS):
                    self.raise_exception = e
                found_error = True

            if found_error:
                continue

            # Calculate a safe mid-range value based on actual hardware limits.
            # This avoids hardcoding and works with any OD_RANGE configuration.
            # For legacy hwmon: min=0, max=255 -> mid=127
            # For gpu_od: min=0 (conservative), max from API -> mid dynamically calculated
            min_value = 0  # Conservative minimum (works for both legacy and gpu_od)
            max_value = fan_speed_max
            fan_speed = min_value + ((max_value - min_value) // 2)

            # Set fan speed
            msg = f"\t### amdsmi_set_gpu_fan_speed(gpu={i}, index=0, fan_speed={fan_speed}):"
            try:
                ret = amdsmi.amdsmi_set_gpu_fan_speed(gpu, 0, fan_speed)
                self.common.print(msg, ret)
                self.common.check_ret("", "", self.common.PASS)
            except (amdsmi.AmdSmiLibraryException, amdsmi.AmdSmiParameterException) as e:
                if self.common.check_ret(msg, e, self.common.PASS):
                    self.raise_exception = e

            # Reset fan to driver control (works for both legacy and gpu_od)
            msg = f"\t### amdsmi_reset_gpu_fan(gpu={i}, index=0):"
            try:
                ret = amdsmi.amdsmi_reset_gpu_fan(gpu, 0)
                self.common.print(msg, ret)
                self.common.check_ret("", "", self.common.PASS)
            except (amdsmi.AmdSmiLibraryException, amdsmi.AmdSmiParameterException) as e:
                if self.common.check_ret(msg, e, self.common.PASS):
                    self.raise_exception = e

        if self.raise_exception:
            raise self.raise_exception
        return

    # integration

    def test_get_gpu_fan_rpms(self):
        self.common.print_func_name("")
        self.common.Test_API_Per_GPU(
            amdsmi_get_gpu_fan_rpms=amdsmi.amdsmi_get_gpu_fan_rpms, index=0
        )
        return

    def test_get_temp_metric(self):
        self.common.print_func_name("")

        if self.common.TODO_SKIP_FAIL:
            msg = "\tSkipping test_get_temp_metric as it fails (Invalid param)."
            self.common.print(msg)
            self.skipTest(msg)

        self.common.Test_Per_GPU_With_One_Enum(
            amdsmi_get_temp_metric=amdsmi.amdsmi_get_temp_metric,
            temperature_type=common.TEMPERATURE_TYPES,
            temperature_metric=common.TEMPERATURE_METRICS,
        )
        return