FlippyPass/project/backend/store.c

// Header
#include "store.h"
#include <flipper_format.h>

// Functions - Private
void store_folder_init() {
    // Opening storage record
    Storage* storage = furi_record_open(RECORD_STORAGE);

    // DEBUG
    FURI_LOG_D(TAG, "Creating FlipperPass Folder");

    // Creating folder
    if (storage_simply_mkdir(storage, DIR)) {
        FURI_LOG_D(TAG, "Created FPass Directory");
    } else {
        FURI_LOG_D(TAG, "FPass Directory already exists");
    }

    // Cleanup
    furi_record_close(RECORD_STORAGE);
}

// Functions
char* store_load(char* type) {
    // Init Folders
    store_folder_init();

    // Allocating memory for storage struct
    char* result = malloc(sizeof(char));

    // Reading storage
    Storage* _storage = furi_record_open(RECORD_STORAGE);
    FlipperFormat* _format = flipper_format_file_alloc(_storage);

    FuriString* _data = furi_string_alloc();

    // Memory issue?
    if (!_format || !_data) {
        FURI_LOG_E(TAG, "Storage Memory Allication Issue");
        return NULL;
    }

    // DEBUG
    FURI_LOG_D(TAG, "Opening file at %s", PATH);

    // Opening file
    if (!flipper_format_file_open_existing(_format, PATH)) {
        FURI_LOG_E(TAG, "Sorry, please register.");

        // Cleaning up
        furi_string_free(_data);
        flipper_format_free(_format);
        furi_record_close(RECORD_STORAGE);
        return NULL;
    } 

    // DEBUG
    FURI_LOG_D(TAG, "Reading data from file...");
    
    // Reading data from file
    if (!flipper_format_read_string(_format, type, _data)) {
        FURI_LOG_E(TAG, "Couldn't read data");
        return NULL;
    }

    // DEBUG
    FURI_LOG_D(TAG, "Copying data into string");

    // Copy data into result
    const char* _cstr_data = furi_string_get_cstr(_data);
    result = malloc(strlen(_cstr_data) + 1);
    strcpy(result, _cstr_data);

    // Free the original string
    furi_string_free(_data);

    // Cleanup
    flipper_format_free(_format);
    furi_record_close(RECORD_STORAGE);

    // DEBUG
    FURI_LOG_D(TAG, "File read successfully");

    // Returning result
    return result;
}
void store_save(char* type, char* data) {
    // Creating new file
    Storage* _storage = furi_record_open(RECORD_STORAGE);
    FlipperFormat* _format = flipper_format_file_alloc(_storage);
    FuriString* _data = furi_string_alloc();

    // Memory issue?
    if (!_storage || !_format || !_data) {
        FURI_LOG_E(TAG, "Memory Allocation Issue!");
        return;
    }

    // Setting furi string data
    furi_string_set_str(_data, data);

    // Opening new file
    if (!flipper_format_file_open_always(_format, PATH)) {
        // DEBUG
        FURI_LOG_E(TAG, "Failed to create/open file at %s", PATH);

        // Cleanup
        furi_string_free(_data);
        flipper_format_free(_format);
        furi_record_close(RECORD_STORAGE);
        return;
    }

    // Writing string
    if (!flipper_format_write_string(_format, type, _data)) {
        FURI_LOG_E(TAG, "Failed to write to file at %s", PATH);
        return;
    } else {
        FURI_LOG_D(TAG, "Successfully wrote to file at %s", PATH);
    }

    // Closing file
    furi_string_free(_data);
    flipper_format_free(_format);
    furi_record_close(RECORD_STORAGE);
}