365 lines
8.0 KiB
C++
365 lines
8.0 KiB
C++
#include <SPI.h>
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#include <SD.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "beerbox.h"
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File myFile;
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const int chipSelect = 53;
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char leckmich[255];
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Beerbox *box;
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void setup() {
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Serial.begin(115200);
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Serial.begin(9600);
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while (!Serial) {
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; // wait for serial port to connect. Needed for Leonardo only
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}
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Serial.print("Initializing SD card...");
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// On the Ethernet Shield, CS is pin 4. It's set as an output by default.
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// Note that even if it's not used as the CS pin, the hardware SS pin
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// (10 on most Arduino boards, 53 on the Mega) must be left as an output
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// or the SD library functions will not work.
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pinMode(SS, OUTPUT);
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if (!SD.begin(chipSelect)) {
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Serial.println("initialization failed!");
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return;
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}
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Serial.println("initialization done.");
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check_for_file("p001", "per");
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box = new Beerbox;
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box = read_beerbox(box);
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}
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void loop() {
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Person myPerson = read_person(box, "p001");
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//read_person(box, "p002");
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while(1);
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}//end loop
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void check_for_file(String filename, String extension){
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String str = filename + '.' + extension;
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char* buf = NULL;
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str.toCharArray(buf, str.length() + 1);
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if (SD.exists("p001.per")) {
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Serial.println(str + " exists.");
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}
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else {
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Serial.println(str + " doesn't exist.");
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}
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}
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//BEYOND THIS POINT IS THE LEYER OF BEERBOX -- ENTER AT YOUR OWN RISK
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char tmp_filename[FILE_NAME_LEN + FILE_EXTENSION_LEN + 2];
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Beerbox* read_beerbox(Beerbox *box){
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File read;
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int num_read = 0;
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int index;
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char tmp[(DRINK_NAME_MAX_LENGTH + 1) * NUM_OF_DRINKS];
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int i = 0;
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read = SD.open("bb.con", FILE_READ);
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if(read == false){
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Serial.print("error while reading!\n");
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Serial.print("-ABORT!\n\n");
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while(1);
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}
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for(i = 0 ; i < NUM_OF_DRINKS ; i++){
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read_line_from_file(read, tmp, sizeof(tmp));
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if(strlen(tmp)){
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sscanf(tmp, " drink number %d: %s",&index,box->drinks[i].name);
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read_line_from_file(read, tmp, sizeof(tmp));
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sscanf(tmp, " %*s %d ",&box->drinks[i].price);
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read_line_from_file(read, tmp, sizeof(tmp));
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sscanf(tmp, " %*s %d",&box->drinks[i].quantity);
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}else{
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strcpy(box->drinks[i].name, "slot empty");
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box->drinks[i].price = -1;
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box->drinks[i].quantity = -1;
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}
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}
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Serial.print(i + " drinks read!\n\n");
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for(i = 0; (i < NUM_OF_DRINKS)&&(box->drinks[i].price != -1); i++){
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sprintf(leckmich, "drink number : %s\nprice: %d\nquantity: %d\n\n",box->drinks[i].name,box->drinks[i].price,box->drinks[i].quantity);
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Serial.print(leckmich);
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}
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if(i < NUM_OF_DRINKS){
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sprintf(leckmich, "Slots %d - %d are not in use!\n", i+1, NUM_OF_DRINKS);
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Serial.print(leckmich);
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}
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read.close();
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return box;
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}
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Person read_person(Beerbox *box, char *filename){
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Person aperson;
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File read;
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int num_read = 0;
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int index;
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int tmp_int = 0;
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char tmp[(DRINK_NAME_MAX_LENGTH + 1) * NUM_OF_DRINKS];
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char tmp_drink_name[DRINK_NAME_MAX_LENGTH + 1];
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int i = 0;
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int j = 0;
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memset(tmp_filename, 0, FILE_NAME_LEN + FILE_EXTENSION_LEN + 2);
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strcat(tmp_filename, filename);
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strcat(tmp_filename, ".");
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strcat(tmp_filename, FILE_EXTENSION);
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read = SD.open(tmp_filename, FILE_READ);
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if(read == false){
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Serial.print("error while reading!\n");
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Serial.print("ABORT!\n\n");
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while(-1);
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}
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strcpy(aperson.file_name, filename);
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for(i = 0; i < NUM_OF_DRINKS; i++){
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aperson.drinks_taken[i] = -1;
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}
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read_line_from_file(read, tmp, sizeof(tmp));
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strcpy(aperson.name, tmp);
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memset(aperson.rfid_uuid, 0, 13);
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read_line_from_file(read, tmp, sizeof(tmp));
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sscanf(tmp, " %*s %12s", aperson.rfid_uuid);
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Serial.print(aperson.rfid_uuid);
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read_line_from_file(read, tmp, sizeof(tmp));
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sscanf(tmp, " %*s %d", &aperson.finger_uuid);
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Serial.println(aperson.finger_uuid);
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j = 0;
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while(read_line_from_file(read, tmp, sizeof(tmp)), strlen(tmp) > 0){
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i = 0;
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sscanf(tmp, " %*s %s", tmp_drink_name);
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for(i = 0;(i < NUM_OF_DRINKS)&&(strcmp(box->drinks[i].name, tmp_drink_name)); i++){
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//Serial.print("It´s not drink No %d: %s\n", i+1, box->drinks[i].name );
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}
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if(i == NUM_OF_DRINKS){
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//Is it in?
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//Serial.print("Drink \"%s\" does not exist in box!\n", tmp_drink_name);
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}else{
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read_line_from_file(read, tmp, sizeof(tmp));
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sscanf(tmp, " %*s %d", &aperson.drinks_taken[i]);
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//Serial.print(">>Quantity: %d\n", aperson.drinks_taken[i].quantity);
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read_line_from_file(read, tmp, sizeof(tmp));
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//Serial.print(">>Total: %d\n\n", aperson.drinks_taken[i].total);
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}
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}
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print_person(box, &aperson);
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//comment back in once it is fixed
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//update_pers_file(box, &aperson);
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read.close();
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return aperson;
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}
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void print_person(Beerbox *box, Person *aperson){
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int i = 0;
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memset(tmp_filename, 0, FILE_NAME_LEN + FILE_EXTENSION_LEN + 2);
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strcat(tmp_filename, aperson->file_name);
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strcat(tmp_filename, ".");
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strcat(tmp_filename, FILE_EXTENSION);
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sprintf(leckmich,"\nPerson is called \"%s\" and has the filename \"%s\".\n", aperson->name, tmp_filename);
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Serial.write(leckmich);
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sprintf(leckmich, "rfid_uuid: %s\n", aperson->rfid_uuid);
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Serial.write(leckmich);
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sprintf(leckmich, "finger_uuid: %u\n", aperson->finger_uuid);
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Serial.print(leckmich);
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for(i = 0; i < NUM_OF_DRINKS; i++){
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if(aperson->drinks_taken[i] != -1){
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sprintf(leckmich, "\nDrink: %s\n", box->drinks[i].name);
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Serial.write(leckmich);
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sprintf(leckmich, "Consumed: %d\n", aperson->drinks_taken[i]);
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Serial.write(leckmich);
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sprintf(leckmich, "Total: %d.%02d Euro\n", aperson->drinks_taken[i]*box->drinks[i].price/100, (aperson->drinks_taken[i]*box->drinks[i].price)%100);
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Serial.write(leckmich);
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}
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}
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}
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int update_pers_file(Beerbox *box, Person *aperson){
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File write;
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char *tmp = NULL;
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//write = fopen()
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int i = 0;
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memset(tmp_filename, 0, FILE_NAME_LEN + FILE_EXTENSION_LEN + 2);
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strcat(tmp_filename, aperson->file_name);
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strcat(tmp_filename, ".");
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strcat(tmp_filename, FILE_EXTENSION);
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write = SD.open(tmp_filename, FILE_WRITE);
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write.seek(0);
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if(write == NULL){
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Serial.print("error while reading!\n");
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Serial.print("ABORT!\n\n");
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while(-1);
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}
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sprintf(leckmich, " %s\n", aperson->name);
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write.write(tmp, strlen(tmp));
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sprintf(leckmich, "rfid_uuid: %s\n", aperson->rfid_uuid);
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write.write(tmp, strlen(tmp));
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sprintf(leckmich, "finger_uuid: %u\n", aperson->finger_uuid);
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write.write(tmp, strlen(tmp));
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for(i = 0; i < NUM_OF_DRINKS; i++){
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if(aperson->drinks_taken[i] != -1){
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sprintf(leckmich, "\nDrink: %s\n", box->drinks[i].name);
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write.write(tmp, strlen(tmp));
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sprintf(leckmich, "Consumed: %d\n", aperson->drinks_taken[i]);
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write.write(tmp, strlen(tmp));
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sprintf(leckmich, "Total: %d\n\n", aperson->drinks_taken[i]*box->drinks[i].price);
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write.write(tmp, strlen(tmp));
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}
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}
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write.close();
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return 0;
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}
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char* read_from_file_until(File stream, char *str, int max_len, char until){
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int i = 0;
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int tmp_int = 0;
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memset(str, 0, max_len);
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for(i = 0; (tmp_int != until)&&(i < (max_len-1))&&(tmp_int != -1); i++){
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tmp_int = stream.read();
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//Serial.print("%c", tmp_int);
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str[i] = tmp_int;
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}
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if(tmp_int == -1){
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//May occur more often as the function tries to read a certain number of drinks.
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//Serial.print("END OF FILE REACHED!\nABORT!!\n\n");
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str[0] = 0;
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return str;
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}
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if(str[0] != '\n')str[i-1] = 0;
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return str;
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}
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char *read_line_from_file(File stream, char *str, int max_len){
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do{
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str = read_from_file_until(stream, str, max_len, '\n');
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}while((str[0] == '\n'));
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return str;
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}
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//
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//@Lukas
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//Funktion schreiben, welche ein Array vom struct Person (Beliebige Groesse) sowie eine rfid-kennung uebernimmt und den Index der entsprechenden Person im array (beginnend bei 0)zurueckgiebt.
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int getRFIDIndex(Person* persons,char* rfid){
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for(int i=0; i<sizeof(persons)/sizeof(Person); i++){
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if(!strcmp(persons[i].rfid_uuid, rfid)){
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return i;
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}
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}
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}
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//
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