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file_service.cpp
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file_service.cpp
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#include <SD.h>
#include "constants.h"
#include "string.h"
#include "file_service.h"
FileService::FileService() {
if (!SD.begin(SD_CARD_CS)) {
Serial.println(F("Erreur lors de l'initialisation du lecteur de carte SD"));
}
}
bool FileService::validateSDCard() {
// Serial.println(F("Start SD card check"));
// Check if a SD card is present
Sd2Card card;
if (!card.init(SPI_HALF_SPEED, SD_CARD_CS)) {
Serial.println(F("No valid SD card found!"));
return false;
}
// Serial.println(F("SD card found"));
if (!SD.begin(SD_CARD_CS)) {
Serial.println(F("SD card initialization failed!"));
return false;
}
return true;
}
bool FileService::validateConfigFiles() {
File root = SD.open("/");
// Serial.println(F("Listing files"));
int matchingFilesCount = 0;
int configFilesCount = 3;
char * configFiles[3] = {
getString(FILE_MEALS),
getString(FILE_POINTS),
getString(FILE_MEAL_SEQUENCES)
};
char * filename;
while (true) {
File entry = root.openNextFile();
if (!entry) {
break; // no more files
}
// Find matching filename in config files list
filename = entry.name();
for (int i = 0; i < configFilesCount; i++) {
if (strcmp(configFiles[i], filename) == 0) {
matchingFilesCount += 1;
}
}
entry.close();
// Stop here if we already have the count
if (matchingFilesCount == configFilesCount) {
break;
}
}
if (matchingFilesCount != configFilesCount) {
// Serial.println(F("Missing config files"));
return false;
}
return true;
}
File FileService::openFile(const char * filename, uint8_t mode) {
return SD.open(filename, mode);
}
bool FileService::fileExists(const char * filename) {
return SD.exists(filename);
}
bool FileService::readLine(File & file, char * line, size_t maxLen) {
for (size_t n = 0; n < maxLen; n++) {
int c = file.read();
if ( c < 0 && n == 0) return false; // EOF
if (c < 0 || c == '\n') {
line[n] = 0;
return true;
}
line[n] = c;
}
return false; // line too long
}
void FileService::splitLine(char * line, char * segments[]) {
int i = 0;
char * segment;
char * string = strdup(line);
while ((segment = strsep(&string, ";")) != NULL) {
segments[i] = segment;
i += 1;
}
}