/**
 * @file    bench_test.cpp
 * @brief	Utility methods related to bench testing.
 *
 *
 * @date Sep 8, 2013
 * @author Andrey Belomutskiy, (c) 2012-2020
 *
 * This file is part of rusEfi - see http://rusefi.com
 *
 * rusEfi is free software; you can redistribute it and/or modify it under the terms of
 * the GNU General Public License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * rusEfi is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 * even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with this program.
 * If not, see <http://www.gnu.org/licenses/>.
 */

// todo: rename this file
#include "pch.h"

#if EFI_ENGINE_CONTROL
#if !EFI_UNIT_TEST

#include "os_access.h"
#include "flash_main.h"
#include "bench_test.h"
#include "main_trigger_callback.h"
#include "idle_thread.h"
#include "periodic_thread_controller.h"
#include "electronic_throttle.h"
#include "cj125.h"
#include "malfunction_central.h"
#include "trigger_emulator_algo.h"
#include "microsecond_timer.h"
#include "gpio_ext.h"

#if EFI_WIDEBAND_FIRMWARE_UPDATE
#include "rusefi_wideband.h"
#endif // EFI_WIDEBAND_FIRMWARE_UPDATE

#if EFI_PROD_CODE
#include "rusefi.h"
#include "mpu_util.h"
#endif /* EFI_PROD_CODE */

#if (BOARD_TLE8888_COUNT > 0)
#include "gpio/tle8888.h"
#endif // BOARD_TLE8888_COUNT

static bool isRunningBench = false;

bool isRunningBenchTest(void) {
	return isRunningBench;
}

static scheduling_s benchSchedStart;
static scheduling_s benchSchedEnd;

static void benchOn(OutputPin* output) {
	output->setValue(true);
}

static char pin_error[64];

static void benchOff(OutputPin* output) {
#if EFI_PROD_CODE && (BOARD_EXT_GPIOCHIPS > 0)
	brain_pin_diag_e diag = gpiochips_getDiag(output->brainPin);
	if (diag == PIN_INVALID) {
		efiPrintf("No Diag on this pin");
	} else {
		pinDiag2string(pin_error, sizeof(pin_error), diag);
		efiPrintf("Diag says %s", pin_error);
	}
#endif // EFI_PROD_CODE
	output->setValue(false);
}

static void runBench(brain_pin_e brainPin, OutputPin *output, float startDelayMs, float onTimeMs, float offTimeMs,
		int count) {
	int startDelayUs = MS2US(maxF(0.1, startDelayMs));
	int onTimeUs = MS2US(maxF(0.1, onTimeMs));
	int offTimeUs = MS2US(maxF(0.1, offTimeMs));

	if (onTimeUs > TOO_FAR_INTO_FUTURE_US) {
		firmwareError(CUSTOM_ERR_BENCH_PARAM, "onTime above limit %dus", TOO_FAR_INTO_FUTURE_US);
		return;
	}

	efiPrintf("Running bench: ON_TIME=%d us OFF_TIME=%d us Counter=%d", onTimeUs, offTimeUs, count);
	efiPrintf("output on %s", hwPortname(brainPin));

	chThdSleepMicroseconds(startDelayUs);

	isRunningBench = true;

	for (int i = 0; i < count; i++) {
		engine->outputChannels.testBenchIter = i;
		efitick_t nowNt = getTimeNowNt();
		// start in a short time so the scheduler can precisely schedule the start event
		efitick_t startTime = nowNt + US2NT(50);
		efitick_t endTime = startTime + US2NT(onTimeUs);

		// Schedule both events
		engine->executor.scheduleByTimestampNt("bstart", &benchSchedStart, startTime, {benchOn, output});
		engine->executor.scheduleByTimestampNt("bend", &benchSchedEnd, endTime, {benchOff, output});

		// Wait one full cycle time for the event + delay to happen
		chThdSleepMicroseconds(onTimeUs + offTimeUs);
	}
	/* last */
	engine->outputChannels.testBenchIter++;

	efiPrintf("Done!");
	isRunningBench = false;
}

static volatile bool isBenchTestPending = false;
static bool widebandUpdatePending = false;
static float onTime;
static float offTime;
static float startDelayMs;
static int count;
static brain_pin_e brainPin;
static OutputPin* pinX;

static void pinbench(float startdelay, float ontime, float offtime, int iterations,
	OutputPin* pinParam, brain_pin_e brainPinParam)
{
	startDelayMs = startdelay;
	onTime = ontime;
	offTime = offtime;
	count = iterations;
	pinX = pinParam;
	brainPin = brainPinParam;
	// let's signal bench thread to wake up
	isBenchTestPending = true;
}

/*==========================================================================*/

static void doRunFuelInjBench(size_t humanIndex, float delay, float onTime, float offTime, int count) {
	if (humanIndex < 1 || humanIndex > engineConfiguration->specs.cylindersCount) {
		efiPrintf("Invalid index: %d", humanIndex);
		return;
	}
	pinbench(delay, onTime, offTime, count,
		&enginePins.injectors[humanIndex - 1], engineConfiguration->injectionPins[humanIndex - 1]);
}

static void doRunSparkBench(size_t humanIndex, float delay, float onTime, float offTime, int count) {
	if (humanIndex < 1 || humanIndex > engineConfiguration->specs.cylindersCount) {
		efiPrintf("Invalid index: %d", humanIndex);
		return;
	}
	pinbench(delay, onTime, offTime, count,
		&enginePins.coils[humanIndex - 1], engineConfiguration->ignitionPins[humanIndex - 1]);
}

static void doRunSolenoidBench(size_t humanIndex, float delay, float onTime, float offTime, int count) {
	if (humanIndex < 1 || humanIndex > TCU_SOLENOID_COUNT) {
		efiPrintf("Invalid index: %d", humanIndex);
		return;
	}
	pinbench(delay, onTime, offTime, count,
		&enginePins.tcuSolenoids[humanIndex - 1], engineConfiguration->tcu_solenoid[humanIndex - 1]);
}

static void doRunBenchTestLuaOutput(size_t humanIndex, float /* delay */, float /* onTime */, float /* offTime */, int /* count */) {
	if (humanIndex < 1 || humanIndex > LUA_PWM_COUNT) {
		efiPrintf("Invalid index: %d", humanIndex);
		return;
	}
// todo: convert in lua bench test
//	pinbench(delay, onTime, offTime, count,
//		&enginePins.luaOutputPins[humanIndex - 1], engineConfiguration->luaOutputPins[humanIndex - 1]);
}

/**
 * delay 100, cylinder #2, 5ms ON, 1000ms OFF, repeat 3 times
 * fuelInjBenchExt 100 2 5 1000 3
 */
static void fuelInjBenchExt(float delay, float humanIndex, float onTime, float offTime, float count) {
	doRunFuelInjBench((int)humanIndex, delay, onTime, offTime, (int)count);
}

/**
 * fuelbench 5 1000 2
 */
static void fuelInjBench(float onTime, float offTime, float count) {
	fuelInjBenchExt(0.0, 1, onTime, offTime, count);
}

/**
 * sparkbench2 0 1 5 1000 2
 */
static void sparkBenchExt(float delay, float humanIndex, float onTime, float offTime, float count) {
	doRunSparkBench((int)humanIndex, delay, onTime, offTime, (int)count);
}

/**
 * sparkbench 5 400 2
 * 5 ms ON, 400 ms OFF, two times
 */
static void sparkBench(float onTime, float offTime, float count) {
	sparkBenchExt(0.0, 1, onTime, offTime, count);
}

/**
 * delay 100, solenoid #2, 1000ms ON, 1000ms OFF, repeat 3 times
 * tcusolbench 100 2 1000 1000 3
 */
static void tcuSolenoidBench(float delay, float humanIndex, float onTime, float offTime, float count) {
	doRunSolenoidBench((int)humanIndex, delay, onTime, offTime, (int)count);
}

/**
 * delay 100, channel #1, 5ms ON, 1000ms OFF, repeat 3 times
 * fsiobench2 100 1 5 1000 3
 */
static void luaOutBench2(float delay, float humanIndex, float onTime, float offTime, float count) {
	doRunBenchTestLuaOutput((int)humanIndex, delay, onTime, offTime, (int)count);
}

static void fanBenchExt(float onTime) {
	pinbench(0.0, onTime, 100.0, 1.0,
		&enginePins.fanRelay, engineConfiguration->fanPin);
}

void fanBench(void) {
	fanBenchExt(3000.0);
}

void fan2Bench(void) {
	pinbench(0.0, 3000.0, 100.0, 1.0,
		&enginePins.fanRelay2, engineConfiguration->fan2Pin);
}

/**
 * we are blinking for 16 seconds so that one can click the button and walk around to see the light blinking
 */
void milBench(void) {
	pinbench(0.0, 500.0, 500.0, 16,
		&enginePins.checkEnginePin, engineConfiguration->malfunctionIndicatorPin);
}

void starterRelayBench(void) {
	pinbench(0.0, 6000.0, 100.0, 1,
		&enginePins.starterControl, engineConfiguration->starterControlPin);
}

static void fuelPumpBenchExt(float durationMs) {
	pinbench(0.0, durationMs, 100.0, 1.0,
		&enginePins.fuelPumpRelay, engineConfiguration->fuelPumpPin);
}

void acRelayBench(void) {
	pinbench(0.0, 1000.0, 100.0, 1,
		&enginePins.acRelay, engineConfiguration->acRelayPin);
}

static void mainRelayBench(void) {
	// main relay is usually "ON" via FSIO thus bench testing that one is pretty unusual
	engine->mainRelayBenchStartNt = getTimeNowNt();
}

static void hpfpValveBench(void) {
	pinbench(1000.0, 20.0, engineConfiguration->benchTestOffTime, engineConfiguration->benchTestCount,
		&enginePins.hpfpValve, engineConfiguration->hpfpValvePin);
}

void fuelPumpBench(void) {
	fuelPumpBenchExt(3000.0);
}

class BenchController : public PeriodicController<UTILITY_THREAD_STACK_SIZE> {
public:
	BenchController() : PeriodicController("BenchThread") { }
private:
	void PeriodicTask(efitick_t nowNt) override	{
		UNUSED(nowNt);
		setPeriod(50 /* ms */);

		validateStack("Bench", STACK_USAGE_BENCH, 128);

		// naive inter-thread communication - waiting for a flag
		if (isBenchTestPending) {
			isBenchTestPending = false;
			runBench(brainPin, pinX, startDelayMs, onTime, offTime, count);
		}

		if (widebandUpdatePending) {
#if EFI_WIDEBAND_FIRMWARE_UPDATE && EFI_CAN_SUPPORT
			updateWidebandFirmware();
#endif
			widebandUpdatePending = false;
		}
	}
};

static BenchController instance;

static void handleBenchCategory(uint16_t index) {
	switch(index) {
	case BENCH_MAIN_RELAY:
		mainRelayBench();
		return;
	case BENCH_HPFP_VALVE:
		hpfpValveBench();
		return;
	case BENCH_FUEL_PUMP:
		// cmd_test_fuel_pump
		fuelPumpBench();
		return;
	case BENCH_STARTER_ENABLE_RELAY:
		starterRelayBench();
		return;
	case BENCH_CHECK_ENGINE_LIGHT:
		// cmd_test_check_engine_light
		milBench();
		return;
	case BENCH_AC_COMPRESSOR_RELAY:
		acRelayBench();
		return;
	case BENCH_FAN_RELAY:
		fanBench();
		return;
	case BENCH_IDLE_VALVE:
		// cmd_test_idle_valve
#if EFI_IDLE_CONTROL
		startIdleBench();
#endif /* EFI_IDLE_CONTROL */
		return;
	case BENCH_FAN_RELAY_2:
		fan2Bench();
		return;
	default:
		firmwareError(OBD_PCM_Processor_Fault, "Unexpected bench function %d", index);
	}
}

static void handleCommandX14(uint16_t index) {
	switch (index) {
	case TS_GRAB_TPS_CLOSED:
		grabTPSIsClosed();
		return;
	case TS_GRAB_TPS_WOT:
		grabTPSIsWideOpen();
		return;
	// case 4: tps2_closed
	// case 5: tps2_wot
	case TS_GRAB_PEDAL_UP:
		grabPedalIsUp();
		return;
	case TS_GRAB_PEDAL_WOT:
		grabPedalIsWideOpen();
		return;
	case TS_RESET_TLE8888:
#if (BOARD_TLE8888_COUNT > 0)
		tle8888_req_init();
#endif
		return;
	case 0xA:
		// cmd_write_config
#if EFI_INTERNAL_FLASH
		writeToFlashNow();
#endif /* EFI_INTERNAL_FLASH */
		return;
#if EFI_EMULATE_POSITION_SENSORS
	case 0xD:
		enableTriggerStimulator();
		return;
	case 0xF:
		disableTriggerStimulator();
		return;
	case 0x13:
		enableExternalTriggerStimulator();
		return;
#endif // EFI_EMULATE_POSITION_SENSORS
#if EFI_ELECTRONIC_THROTTLE_BODY
	case 0xE:
		etbAutocal(0);
		return;
	case 0x11:
		etbAutocal(1);
		return;
	case 0xC:
		engine->etbAutoTune = true;
		return;
	case 0x10:
		engine->etbAutoTune = false;
#if EFI_TUNER_STUDIO
		engine->outputChannels.calibrationMode = (uint8_t)TsCalMode::None;
#endif // EFI_TUNER_STUDIO
		return;
#endif
	case 0x12:
		widebandUpdatePending = true;
		return;
	case 0x14:
#ifdef STM32F7
		void sys_dual_bank(void);
		/**
		 * yes, this would instantly cause a hard fault as a random sequence of bytes is decoded as instructions
		 * and that's the intended behavious - the point is to set flash properly and to re-flash once in proper configuration
		 */
		sys_dual_bank();
		rebootNow();
#else
		firmwareError(OBD_PCM_Processor_Fault, "Unexpected dbank command", index);
#endif
		return;
	case 0x15:
#if EFI_PROD_CODE
		extern bool burnWithoutFlash;
		burnWithoutFlash = true;
#endif // EFI_PROD_CODE
		return;
	default:
		firmwareError(OBD_PCM_Processor_Fault, "Unexpected bench x14 %d", index);
	}
}

extern bool rebootForPresetPending;

static void fatalErrorForPresetApply() {
	rebootForPresetPending = true;
	firmwareError(OBD_PCM_Processor_Fault,
		"\n\nTo complete preset apply:\n"
		"   1. Close TunerStudio\n"
		"   2. Power cycle ECU\n"
		"   3. Open TunerStudio and reconnect\n\n");
}

void executeTSCommand(uint16_t subsystem, uint16_t index) {
	efiPrintf("IO test subsystem=%d index=%d", subsystem, index);

	bool running = !engine->rpmCalculator.isStopped();

	switch (subsystem) {
	case TS_CLEAR_WARNINGS:
		clearWarnings();
		break;

	case TS_DEBUG_MODE:
		engineConfiguration->debugMode = (debug_mode_e)index;
		break;

	case TS_IGNITION_CATEGORY:
		if (!running) {
			/* WARN: fixed charge time */
			doRunSparkBench(index, 300.0, 4.0,
				engineConfiguration->benchTestOffTime, engineConfiguration->benchTestCount);
		}
		break;

	case TS_INJECTOR_CATEGORY:
		if (!running) {
			doRunFuelInjBench(index, 300.0 , engineConfiguration->benchTestOnTime,
				engineConfiguration->benchTestOffTime, engineConfiguration->benchTestCount);
		}
		break;

	case CMD_TS_SOLENOID_CATEGORY:
		if (!running) {
			doRunSolenoidBench(index, 300.0, 1000.0,
				1000.0, engineConfiguration->benchTestCount);
		}
		break;

	case CMD_TS_LUA_OUTPUT_CATEGORY:
		if (!running) {
			doRunBenchTestLuaOutput(index, 300.0, 4.0,
				engineConfiguration->benchTestOffTime, engineConfiguration->benchTestCount);
		}
		break;

	case TS_X14:
		handleCommandX14(index);
		break;
#if defined(EFI_WIDEBAND_FIRMWARE_UPDATE) && EFI_CAN_SUPPORT
	case 0x15:
		setWidebandOffset(index);
		break;
#endif // EFI_WIDEBAND_FIRMWARE_UPDATE && EFI_CAN_SUPPORT
	case CMD_TS_BENCH_CATEGORY:
		handleBenchCategory(index);
		break;

	case TS_UNUSED_CJ125_CALIB:
#if EFI_CJ125 && HAL_USE_SPI
		cjStartCalibration();
#endif /* EFI_CJ125 */
		break;

	case TS_CRAZY:
		if (index == 0x3456) {
			// call to pit
			setCallFromPitStop(30000);
		}
		break;

	case 0x30:
		fatalErrorForPresetApply();
		setEngineType(index);
		break;

	case CMD_TS_X31:
		fatalErrorForPresetApply();
		setEngineType(DEFAULT_ENGINE_TYPE);
		break;

	case 0x79:
		scheduleStopEngine();
		break;

	case 0xba:
#if EFI_PROD_CODE
		jump_to_bootloader();
#endif /* EFI_PROD_CODE */
		break;

	case 0xbb:
#if EFI_PROD_CODE
		rebootNow();
#endif /* EFI_PROD_CODE */
		break;
	default:
		firmwareError(OBD_PCM_Processor_Fault, "Unexpected bench subsystem %d %d", subsystem, index);
	}
}

void onConfigurationChangeBenchTest() {
	if (engineConfiguration->benchTestOffTime < 5)
		engineConfiguration->benchTestOffTime = 500; // default value if configuration was not specified
	if (engineConfiguration->benchTestCount < 1)
		engineConfiguration->benchTestCount = 3; // default value if configuration was not specified
}

void initBenchTest() {
	addConsoleAction("fuelpumpbench", fuelPumpBench);
	addConsoleActionF("fuelpumpbench2", fuelPumpBenchExt);

	addConsoleActionFFF(CMD_FUEL_BENCH, fuelInjBench);
	addConsoleActionFFFFF("fuelbench2", fuelInjBenchExt);

	addConsoleActionFFF(CMD_SPARK_BENCH, sparkBench);
	addConsoleActionFFFFF("sparkbench2", sparkBenchExt);

	addConsoleActionFFFFF("tcusolbench", tcuSolenoidBench);

	addConsoleAction(CMD_AC_RELAY_BENCH, acRelayBench);

	addConsoleAction(CMD_FAN_BENCH, fanBench);
	addConsoleAction(CMD_FAN2_BENCH, fan2Bench);
	addConsoleActionF("fanbench2", fanBenchExt);

	addConsoleAction("mainrelaybench", mainRelayBench);

#if EFI_WIDEBAND_FIRMWARE_UPDATE && EFI_CAN_SUPPORT
	addConsoleAction("update_wideband", []() { widebandUpdatePending = true; });
	addConsoleActionI("set_wideband_index", [](int index) { setWidebandOffset(index); });
#endif // EFI_WIDEBAND_FIRMWARE_UPDATE && EFI_CAN_SUPPORT

	addConsoleAction(CMD_STARTER_BENCH, starterRelayBench);
	addConsoleAction(CMD_MIL_BENCH, milBench);
	addConsoleAction(CMD_HPFP_BENCH, hpfpValveBench);

	addConsoleActionFFFFF("luabench2", luaOutBench2);
	instance.setPeriod(200 /*ms*/);
	instance.Start();
	onConfigurationChangeBenchTest();
}

#endif /* EFI_UNIT_TEST */
#endif