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@ -2,10 +2,29 @@ |
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#include "currentCustomerAccountBalance.c" |
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#include "lineReplacer.h" |
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void troubleShoot(int errorCode){ |
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printf("Error! The requested operation was terminated because of an issue. Here are some details about the error:\n---------------\n"); |
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switch(errorCode){ |
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case 0: |
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printf("Requested file could not be opened. Are you sure it exists?"); |
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break; |
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case 1: |
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printf("A temporary file could not be generated. Are you sure the bank management system has the required authorization to create new files?"); |
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break; |
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case 2: |
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printf("Replacement of the old file failed. Are you sure the bank management system has the required authorization to delete files?"); |
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break; |
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case 3: |
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printf("Renaming of a file failed. Are you sure the bank management system has the required authorization to rename files?"); |
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break; |
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} |
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} |
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void replaceLineInFile(const char* file_name, int line, const char* new_line){ |
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FILE* file = fopen(file_name, "r"); |
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if (file == NULL) { |
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printf("Error opening file!\n"); |
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troubleShoot(0); |
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return; |
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} |
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char current_string[100]; |
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@ -14,7 +33,7 @@ void replaceLineInFile(const char* file_name, int line, const char* new_line){ |
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temp_file_name = "temp.txt"; |
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FILE* temp_file = fopen(temp_file_name, "w"); |
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if (temp_file == NULL) { |
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printf("Error creating temp file!\n"); |
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troubleShoot(1); |
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fclose(file); |
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return; |
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} |
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@ -30,10 +49,10 @@ void replaceLineInFile(const char* file_name, int line, const char* new_line){ |
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fclose(file); |
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fclose(temp_file); |
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if(remove(file_name)!=0){ |
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printf("could not remove the original file!"); |
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troubleShoot(2); |
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} // Remove the original file |
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if(rename(temp_file_name, file_name)!=0){ |
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printf("could not rename!"); |
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troubleShoot(3); |
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} // Rename the temp file to the original file |
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} |
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@ -68,12 +87,11 @@ bool updateAvailableAccountBalance(int user_id, float newBalance){ |
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keep_reading = false; |
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} |
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else if(strstr(buffer, stringID)) { //found the customer |
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fgets(buffer, MAX_LENGTH, file); |
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fgets(buffer, MAX_LENGTH, file); |
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fgets(buffer, MAX_LENGTH, file); |
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fgets(buffer, MAX_LENGTH, file); |
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for (int i = 0; i < 4; i++) { |
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fgets(buffer, MAX_LENGTH, file); |
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currentLine++; |
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} |
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strcpy(balance_String, buffer); |
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currentLine+=4; |
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keep_reading = false; |
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} |
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