/* Copyright 2019 ishtob
 * Driver for haptic feedback written for QMK
 *
 * This program 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 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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/>.
 */
#include "haptic.h"
#include "eeconfig.h"
#include "progmem.h"
#include "debug.h"
#ifdef DRV2605L
#    include "DRV2605L.h"
#endif
#ifdef SOLENOID_ENABLE
#    include "solenoid.h"
#endif

haptic_config_t haptic_config;

void haptic_init(void) {
    debug_enable = 1;  // Debug is ON!
    if (!eeconfig_is_enabled()) {
        eeconfig_init();
    }
    haptic_config.raw = eeconfig_read_haptic();
#ifdef SOLENOID_ENABLE
    solenoid_set_dwell(haptic_config.dwell);
#endif
    if ((haptic_config.raw == 0)
#ifdef SOLENOID_ENABLE
        || (haptic_config.dwell == 0)
#endif
    ) {
        // this will be called, if the eeprom is not corrupt,
        // but the previous firmware didn't have haptic enabled,
        // or the previous firmware didn't have solenoid enabled,
        // and the current one has solenoid enabled.
        haptic_reset();
    }
#ifdef SOLENOID_ENABLE
    solenoid_setup();
    dprintf("Solenoid driver initialized\n");
#endif
#ifdef DRV2605L
    DRV_init();
    dprintf("DRV2605 driver initialized\n");
#endif
    eeconfig_debug_haptic();
}

void haptic_task(void) {
#ifdef SOLENOID_ENABLE
    solenoid_check();
#endif
}

void eeconfig_debug_haptic(void) {
    dprintf("haptic_config eprom\n");
    dprintf("haptic_config.enable = %d\n", haptic_config.enable);
    dprintf("haptic_config.mode = %d\n", haptic_config.mode);
}

void haptic_enable(void) {
    haptic_config.enable = 1;
    xprintf("haptic_config.enable = %u\n", haptic_config.enable);
    eeconfig_update_haptic(haptic_config.raw);
}

void haptic_disable(void) {
    haptic_config.enable = 0;
    xprintf("haptic_config.enable = %u\n", haptic_config.enable);
    eeconfig_update_haptic(haptic_config.raw);
}

void haptic_toggle(void) {
    if (haptic_config.enable) {
        haptic_disable();
    } else {
        haptic_enable();
    }
    eeconfig_update_haptic(haptic_config.raw);
}

void haptic_feedback_toggle(void) {
    haptic_config.feedback++;
    if (haptic_config.feedback >= HAPTIC_FEEDBACK_MAX) haptic_config.feedback = KEY_PRESS;
    xprintf("haptic_config.feedback = %u\n", !haptic_config.feedback);
    eeconfig_update_haptic(haptic_config.raw);
}

void haptic_buzz_toggle(void) {
    bool buzz_stat     = !haptic_config.buzz;
    haptic_config.buzz = buzz_stat;
    haptic_set_buzz(buzz_stat);
}

void haptic_mode_increase(void) {
    uint8_t mode = haptic_config.mode + 1;
#ifdef DRV2605L
    if (haptic_config.mode >= drv_effect_max) {
        mode = 1;
    }
#endif
    haptic_set_mode(mode);
}

void haptic_mode_decrease(void) {
    uint8_t mode = haptic_config.mode - 1;
#ifdef DRV2605L
    if (haptic_config.mode < 1) {
        mode = (drv_effect_max - 1);
    }
#endif
    haptic_set_mode(mode);
}

void haptic_dwell_increase(void) {
#ifdef SOLENOID_ENABLE
    int16_t next_dwell = ((int16_t)haptic_config.dwell) + SOLENOID_DWELL_STEP_SIZE;
    if (haptic_config.dwell >= SOLENOID_MAX_DWELL) {
        // if it's already at max, we wrap back to min
        next_dwell = SOLENOID_MIN_DWELL;
    } else if (next_dwell > SOLENOID_MAX_DWELL) {
        // if we overshoot the max, then cap at max
        next_dwell = SOLENOID_MAX_DWELL;
    }
    solenoid_set_dwell(next_dwell);
#else
    int16_t next_dwell = ((int16_t)haptic_config.dwell) + 1;
#endif
    haptic_set_dwell(next_dwell);
}

void haptic_dwell_decrease(void) {
#ifdef SOLENOID_ENABLE
    int16_t next_dwell = ((int16_t)haptic_config.dwell) - SOLENOID_DWELL_STEP_SIZE;
    if (haptic_config.dwell <= SOLENOID_MIN_DWELL) {
        // if it's already at min, we wrap to max
        next_dwell = SOLENOID_MAX_DWELL;
    } else if (next_dwell < SOLENOID_MIN_DWELL) {
        // if we go below min, then we cap to min
        next_dwell = SOLENOID_MIN_DWELL;
    }
    solenoid_set_dwell(next_dwell);
#else
    int16_t next_dwell = ((int16_t)haptic_config.dwell) - 1;
#endif
    haptic_set_dwell(next_dwell);
}

void haptic_reset(void) {
    haptic_config.enable   = true;
    uint8_t feedback       = HAPTIC_FEEDBACK_DEFAULT;
    haptic_config.feedback = feedback;
#ifdef DRV2605L
    uint8_t mode       = HAPTIC_MODE_DEFAULT;
    haptic_config.mode = mode;
#endif
#ifdef SOLENOID_ENABLE
    uint8_t dwell       = SOLENOID_DEFAULT_DWELL;
    haptic_config.dwell = dwell;
    haptic_config.buzz  = SOLENOID_DEFAULT_BUZZ;
    solenoid_set_dwell(dwell);
#else
    // This is to trigger haptic_reset again, if solenoid is enabled in the future.
    haptic_config.dwell = 0;
    haptic_config.buzz  = 0;
#endif
    eeconfig_update_haptic(haptic_config.raw);
    xprintf("haptic_config.feedback = %u\n", haptic_config.feedback);
    xprintf("haptic_config.mode = %u\n", haptic_config.mode);
}

void haptic_set_feedback(uint8_t feedback) {
    haptic_config.feedback = feedback;
    eeconfig_update_haptic(haptic_config.raw);
    xprintf("haptic_config.feedback = %u\n", haptic_config.feedback);
}

void haptic_set_mode(uint8_t mode) {
    haptic_config.mode = mode;
    eeconfig_update_haptic(haptic_config.raw);
    xprintf("haptic_config.mode = %u\n", haptic_config.mode);
}

void haptic_set_amplitude(uint8_t amp) {
    haptic_config.amplitude = amp;
    eeconfig_update_haptic(haptic_config.raw);
    xprintf("haptic_config.amplitude = %u\n", haptic_config.amplitude);
#ifdef DRV2605L
    DRV_amplitude(amp);
#endif
}

void haptic_set_buzz(uint8_t buzz) {
    haptic_config.buzz = buzz;
    eeconfig_update_haptic(haptic_config.raw);
    xprintf("haptic_config.buzz = %u\n", haptic_config.buzz);
}

void haptic_set_dwell(uint8_t dwell) {
    haptic_config.dwell = dwell;
    eeconfig_update_haptic(haptic_config.raw);
    xprintf("haptic_config.dwell = %u\n", haptic_config.dwell);
}

uint8_t haptic_get_mode(void) {
    if (!haptic_config.enable) {
        return false;
    }
    return haptic_config.mode;
}

uint8_t haptic_get_feedback(void) {
    if (!haptic_config.enable) {
        return false;
    }
    return haptic_config.feedback;
}

uint8_t haptic_get_dwell(void) {
    if (!haptic_config.enable) {
        return false;
    }
    return haptic_config.dwell;
}

void haptic_enable_continuous(void) {
    haptic_config.cont = 1;
    xprintf("haptic_config.cont = %u\n", haptic_config.cont);
    eeconfig_update_haptic(haptic_config.raw);
#ifdef DRV2605L
    DRV_rtp_init();
#endif
}

void haptic_disable_continuous(void) {
    haptic_config.cont = 0;
    xprintf("haptic_config.cont = %u\n", haptic_config.cont);
    eeconfig_update_haptic(haptic_config.raw);
#ifdef DRV2605L
    DRV_write(DRV_MODE, 0x00);
#endif
}

void haptic_toggle_continuous(void) {
#ifdef DRV2605L
    if (haptic_config.cont) {
        haptic_disable_continuous();
    } else {
        haptic_enable_continuous();
    }
    eeconfig_update_haptic(haptic_config.raw);
#endif
}

void haptic_cont_increase(void) {
    uint8_t amp = haptic_config.amplitude + 10;
    if (haptic_config.amplitude >= 120) {
        amp = 120;
    }
    haptic_set_amplitude(amp);
}

void haptic_cont_decrease(void) {
    uint8_t amp = haptic_config.amplitude - 10;
    if (haptic_config.amplitude < 20) {
        amp = 20;
    }
    haptic_set_amplitude(amp);
}

void haptic_play(void) {
#ifdef DRV2605L
    uint8_t play_eff = 0;
    play_eff         = haptic_config.mode;
    DRV_pulse(play_eff);
#endif
#ifdef SOLENOID_ENABLE
    solenoid_fire();
#endif
}

bool process_haptic(uint16_t keycode, keyrecord_t *record) {
    if (keycode == HPT_ON && record->event.pressed) {
        haptic_enable();
    }
    if (keycode == HPT_OFF && record->event.pressed) {
        haptic_disable();
    }
    if (keycode == HPT_TOG && record->event.pressed) {
        haptic_toggle();
    }
    if (keycode == HPT_RST && record->event.pressed) {
        haptic_reset();
    }
    if (keycode == HPT_FBK && record->event.pressed) {
        haptic_feedback_toggle();
    }
    if (keycode == HPT_BUZ && record->event.pressed) {
        haptic_buzz_toggle();
    }
    if (keycode == HPT_MODI && record->event.pressed) {
        haptic_mode_increase();
    }
    if (keycode == HPT_MODD && record->event.pressed) {
        haptic_mode_decrease();
    }
    if (keycode == HPT_DWLI && record->event.pressed) {
        haptic_dwell_increase();
    }
    if (keycode == HPT_DWLD && record->event.pressed) {
        haptic_dwell_decrease();
    }
    if (keycode == HPT_CONT && record->event.pressed) {
        haptic_toggle_continuous();
    }
    if (keycode == HPT_CONI && record->event.pressed) {
        haptic_cont_increase();
    }
    if (keycode == HPT_COND && record->event.pressed) {
        haptic_cont_decrease();
    }

    if (haptic_config.enable) {
        if (record->event.pressed) {
            // keypress
            if (haptic_config.feedback < 2) {
                haptic_play();
            }
        } else {
            // keyrelease
            if (haptic_config.feedback > 0) {
                haptic_play();
            }
        }
    }
    return true;
}

void haptic_shutdown(void) {
#ifdef SOLENOID_ENABLE
    solenoid_shutdown();
#endif
}
