/**
 * @author Rémi Heredero
 * @version 1.0.0
 * @date July 2023
 * @file blinker.c
 */

#include "blinker.h"

void BLINKER_init(BLINKER* me){
    me->state = STBL_INIT;
    me->timeOn = 500;
    me->timeOff = 500;
    me->numberOfBlink = 3;
    me->nBlinkIsOn = false;
    me->remainBlinks = 3;
    me->wait.f = NULL;
    me->on.f = NULL;
    me->off.f = NULL;
    me->finished.f = NULL;
}

void BLINKER_startBehaviour(BLINKER* me) {
    POST(me, &BLINKER_processEvent, evBLinit, 0, 0);
}

bool BLINKER_processEvent(Event* ev) {
    bool processed = false;
    BLINKER* me = (BLINKER*)Event_getTarget(ev);
    BLINKER_STATES oldState = me->state;
    evIDT evid = Event_getId(ev);
    
    switch (me->state) {        // onState
        case STBL_INIT:
            if (ev->id == evBLinit) {
                me->state = STBL_WAIT;
            }
            break;
        
        case STBL_WAIT:
            me->remainBlinks = me->numberOfBlink;
            if(evid == evBLblinkN) {
                me->state = STBL_ON;
                me->nBlinkIsOn = true;
                BLINKER_emitTimer(me, me->timeOn);
            }
            if(evid == evBLblink) {
                me->state = STBL_ON;
                me->nBlinkIsOn = false;
                BLINKER_emitTimer(me, me->timeOn);
            }
            break;
        
        case STBL_ON:
            if (me->nBlinkIsOn) {
                me->remainBlinks--;
            }
            if (evid == evBLtimer) {
                me->state = STBL_OFF;
                BLINKER_emitTimer(me, me->timeOff);
            }
            break;
        
        case STBL_OFF:
            if (evid == evBLtimer) {
                if (me->remainBlinks == 0) {
                    me->state = STBL_WAIT;
                    if (me->finished.f != NULL) {
                        me->finished.f(me->finished.p);
                    }
                } else {
                    me->state = STBL_ON;
                    BLINKER_emitTimer(me, me->timeOn);
                }
            }
            break;
    }

    if(oldState != me->state){
        switch (oldState) {     // onExit
            case STBL_INIT:
                break;
            
            case STBL_WAIT:
                break;
            
            case STBL_ON:
                break;
            
            case STBL_OFF:
                break;
        }

        switch (me->state) {    // onEntry
            case STBL_INIT:
                break;
            
            case STBL_WAIT:
                if (me->wait.f != NULL) {
                    me->wait.f(me->wait.p);
                }
                break;
            
            case STBL_ON:
                if (me->on.f != NULL) {
                    me->on.f(me->on.p);
                }
                break;
            
            case STBL_OFF:
                if (me->off.f != NULL) {
                    me->off.f(me->off.p);
                }
                break;
        }

        processed = true;
    }
    return processed;
}

/*************
 * Callbacks *
 *************/

void BLINKER_onWait(BLINKER* me, BLINKER_CALLBACK_FUNCTION f, void* p) {
    me->wait.f = f;
    me->wait.p = p;
}

void BLINKER_onOn(BLINKER* me, BLINKER_CALLBACK_FUNCTION f, void* p) {
    me->on.f = f;
    me->on.p = p;
}

void BLINKER_onOff(BLINKER* me, BLINKER_CALLBACK_FUNCTION f, void* p) {
    me->off.f = f;
    me->off.p = p;
}

void BLINKER_onFinished(BLINKER* me, BLINKER_CALLBACK_FUNCTION f, void* p) {
    me->finished.f = f;
    me->finished.p = p;
}

/************
 * EMITTERS *
 ************/

void BLINKER_emitBlink(BLINKER* me, uint16_t t) {
    POST(me, &BLINKER_processEvent, evBLblink, t, 0);
}

void BLINKER_emitBlinkN(BLINKER* me, uint16_t t) {
    POST(me, &BLINKER_processEvent, evBLblinkN, t, 0);
}

void BLINKER_emitTimer(BLINKER* me, uint16_t t) {
    POST(me, &BLINKER_processEvent, evBLtimer, t, 0);
}

/***********
 * SETTERS *
 ***********/

void BLINKER_setTimeOn(BLINKER* me, uint16_t v) {
    me->timeOn = v;
}

void BLINKER_setTimeOff(BLINKER* me, uint16_t v) {
    me->timeOff = v;
}

void BLINKER_setNumberOfBlink(BLINKER* me, uint8_t v) {
    me->numberOfBlink = v;
}

void BLINKER_setNBlinkIsOn(BLINKER* me, bool v) {
    me->nBlinkIsOn = v;
}

void BLINKER_setRemainBlinks(BLINKER* me, uint8_t v) {
    me->remainBlinks = v;
}


void BLINKER_endBlink(BLINKER* me) {
    me->remainBlinks = 0;
}