Implement a $4$ digit key press counter with persistence

Problem Statement:

Implement a $4$ digit key press counter with persistence using Internal EEPROM.$$

Output Requirements:

$-$ As soon as the board is powered up or reset, counter should display $0000$ on SSDs$.$

$-$ On every key press$$ counter value should increment by $1.$

$-$ On a$$ long key press $(2$ seconds$),$ Count should$$ reset to zero.

$-$ On pressing STORE switch, the current count should be$$ stored in internal EEPROM.

$-$ On subsequent power ups or reset the counter should start from the previous stored value in the EEPROM.

Inputs:

DKS $1$ as Count input $.$

DKS $1$ Long press to reset the count $.$

DKS $2$ Store Input.