#include "PikaStdDevice_GPIO.h"
#include "PikaStdDevice_common.h"

static pika_dev* _get_dev(PikaObj* self) {
    pika_dev* dev = PIKA_HAL_OBJ2DEV(self);
    if (NULL != dev) {
        return dev;
    }
    dev = pika_hal_open(PIKA_HAL_GPIO, obj_getStr(self, "pin"));
    if (NULL == dev) {
        __platform_printf("Error: open GPIO '%s' failed.\r\n",
                          obj_getStr(self, "pin"));
    }
    obj_setPtr(self, "pika_dev", dev);
    return dev;
}

void PikaStdDevice_GPIO_init(PikaObj* self) {
    obj_setInt(self, "isEnable", 0);
    obj_setStr(self, "pin", "none");
    obj_setStr(self, "mode", "out");
    obj_setInt(self, "isOn", 0);
    obj_setStr(self, "pull", "none");
    obj_setInt(self, "id", -999);
    obj_setPtr(self, "pika_dev", NULL);
}

int PikaStdDevice_GPIO_getId(PikaObj* self) {
    return obj_getInt(self, "id");
}

void PikaStdDevice_GPIO_setId(PikaObj* self, int id) {
    obj_setInt(self, "id", id);
}

void PikaStdDevice_GPIO___init__(PikaObj* self) {
    PikaStdDevice_GPIO_init(self);
    obj_setInt(self, "SIGNAL_RISING", PIKA_HAL_GPIO_EVENT_SIGNAL_RISING);
    obj_setInt(self, "SIGNAL_FALLING", PIKA_HAL_GPIO_EVENT_SIGNAL_FALLING);
    obj_setInt(self, "SIGNAL_ANY", PIKA_HAL_GPIO_EVENT_SIGNAL_ANY);
}

void PikaStdDevice_GPIO_disable(PikaObj* self) {
    obj_setInt(self, "isEnable", 0);
    pika_dev* dev = _get_dev(self);
    pika_hal_ioctl(dev, PIKA_HAL_IOCTL_DISABLE);
}

void PikaStdDevice_GPIO_enable(PikaObj* self) {
    obj_setInt(self, "isEnable", 1);
    pika_dev* dev = _get_dev(self);
    pika_hal_ioctl(dev, PIKA_HAL_IOCTL_ENABLE);
}

char* PikaStdDevice_GPIO_getMode(PikaObj* self) {
    return obj_getStr(self, "mode");
}

char* PikaStdDevice_GPIO_getPin(PikaObj* self) {
    return obj_getStr(self, "pin");
}

void PikaStdDevice_GPIO_low(PikaObj* self) {
    obj_setInt(self, "isOn", 0);
    pika_dev* dev = _get_dev(self);
    uint32_t val = 0;
    pika_hal_write(dev, &val, sizeof(val));
}

void PikaStdDevice_GPIO_high(PikaObj* self) {
    obj_setInt(self, "isOn", 1);
    pika_dev* dev = _get_dev(self);
    uint32_t val = 1;
    pika_hal_write(dev, &val, sizeof(val));
}

int PikaStdDevice_GPIO_read(PikaObj* self) {
    pika_dev* dev = _get_dev(self);
    uint32_t val = 0;
    pika_hal_read(dev, &val, sizeof(val));
    obj_setInt(self, "readBuff", val);
    return obj_getInt(self, "readBuff");
}

void PikaStdDevice_GPIO_setMode(PikaObj* self, char* mode) {
    if (strEqu(mode, "out") || strEqu(mode, "in")) {
        obj_setStr(self, "mode", mode);
        pika_hal_GPIO_config cfg = {0};
        if (strEqu(mode, "in")) {
            cfg.dir = PIKA_HAL_GPIO_DIR_IN;
        } else {
            cfg.dir = PIKA_HAL_GPIO_DIR_OUT;
        }
        pika_dev* dev = _get_dev(self);
        char* pull = obj_getStr(self, "pull");
        if (strEqu(pull, "up")) {
            cfg.pull = PIKA_HAL_GPIO_PULL_UP;
        }
        if (strEqu(pull, "down")) {
            cfg.pull = PIKA_HAL_GPIO_PULL_DOWN;
        }
        if (strEqu(pull, "none")) {
            cfg.pull = PIKA_HAL_GPIO_PULL_NONE;
        }
        pika_hal_ioctl(dev, PIKA_HAL_IOCTL_CONFIG, &cfg);
    } else {
        obj_setErrorCode(self, 1);
        obj_setSysOut(self, "[error] GPIO mode should be 'out' or 'in'.");
    }
}

void PikaStdDevice_GPIO_setPull(PikaObj* self, char* pull) {
    if (strEqu(pull, "up") || strEqu(pull, "down") || strEqu(pull, "none")) {
        obj_setStr(self, "pull", pull);
    } else {
        obj_setErrorCode(self, 1);
        obj_setSysOut(self,
                      "[error] GPIO pull should be 'up', 'down' or 'none'.");
    }
}

void PikaStdDevice_GPIO_setPin(PikaObj* self, char* pinName) {
    obj_setStr(self, "pin", pinName);
}

void PikaStdDevice_GPIO_setCallback(PikaObj* self,
                                    Arg* eventCallback,
                                    int filter) {
#if PIKA_EVENT_ENABLE
    pika_dev* dev = _get_dev(self);
    _PikaStdDevice_setCallback(self, eventCallback, (uintptr_t)dev);
    /* regist event to pika_hal */
    pika_hal_GPIO_config cfg_cb = {0};
    cfg_cb.event_callback = _PikaStdDevice_GPIO_event_handler;
    cfg_cb.event_callback_filter = filter;
    cfg_cb.event_callback_ena = PIKA_HAL_EVENT_CALLBACK_ENA_ENABLE;
    pika_hal_ioctl(dev, PIKA_HAL_IOCTL_CONFIG, &cfg_cb);
#else
    obj_setErrorCode(self, 1);
    obj_setSysOut(self, "[error] PIKA_EVENT_ENABLE is disabled.");
#endif
}

void PikaStdDevice_GPIO_setCallBack(PikaObj* self,
                                    Arg* eventCallback,
                                    int filter) {
    pika_platform_printf(
        "Warning: setCallBack is deprecated, use "
        "setCallback instead.\r\n");
    PikaStdDevice_GPIO_setCallback(self, eventCallback, filter);
}

void PikaStdDevice_GPIO_close(PikaObj* self) {
    pika_dev* dev = _get_dev(self);
    pika_hal_close(dev);
}
