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#include "createCustomer.h" |
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/*Code written by Julius Philipp Engel, fdai7057*/ |
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int generateID() |
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{ |
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srand(clock()); |
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const int MIN = 1000000, MAX = 9000001; |
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int pseudoRandomIDForCustomer = (rand() % MAX) + MIN; |
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return pseudoRandomIDForCustomer; |
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} |
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void collectCustomerProperties() |
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{ |
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customer_t instance; |
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instance.forename = calloc(15+1,sizeof(char)); |
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instance.surname = calloc(15+1,sizeof(char)); |
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instance.password = calloc(20+1,sizeof(char)); |
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instance.ID = generateID(); |
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int letterCounter = 0; |
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int letterMaximum = 15; |
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char userInput=' '; |
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bool inputTooLong = false; |
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printf("To create a new user, enter the information required below.\n"); |
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printf("Enter forename (max. 15 letters):\n"); |
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while(letterCounter<letterMaximum && (userInput=getchar())!='\n'){ |
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*(instance.forename+letterCounter) = userInput; |
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++letterCounter; |
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if(letterCounter>=letterMaximum){ |
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inputTooLong = true; |
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break; |
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} |
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} |
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if(inputTooLong){ |
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printf("Forename too long. Aborting.\n"); |
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exit(-1); |
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}else{ |
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*(instance.forename+letterCounter) = '\0'; |
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letterCounter = 0; |
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} |
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printf("Enter surname (max. 15 letters):\n"); |
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while(letterCounter<letterMaximum && (userInput=getchar())!='\n'){ |
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*(instance.surname+letterCounter) = userInput; |
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++letterCounter; |
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if(letterCounter>=letterMaximum){ |
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inputTooLong = true; |
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break; |
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} |
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} |
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if(inputTooLong){ |
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printf("Surname too long. Aborting.\n"); |
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exit(-1); |
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}else{ |
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*(instance.surname+letterCounter) = '\0'; |
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letterCounter = 0; |
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} |
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printf("Enter password (max. 20 letters):\n"); |
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while(letterCounter<letterMaximum && (userInput=getchar())!='\n'){ |
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*(instance.password+letterCounter) = userInput; |
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++letterCounter; |
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if(letterCounter>=letterMaximum){ |
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inputTooLong = true; |
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break; |
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} |
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} |
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if(inputTooLong){ |
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printf("Password too long. Aborting.\n"); |
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exit(-1); |
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} |
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*(instance.password+letterCounter) = '\0'; |
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letterCounter = 0; |
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printf("Enter balance:\n"); |
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scanf("%f",&instance.balance); |
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printf("Account successfully created. Your ID is: %d. Note it somewhere!\n",instance.ID); |
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customer_t *referenceToCustomerInstance = &instance; |
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writeCustomerPropertiesToFile(referenceToCustomerInstance); |
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} |
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void writeCustomerPropertiesToFile(customer_t *referenceToCustomerInstance) |
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{ |
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FILE *customerData = fopen("CustomerData.txt","a"); |
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if(customerData!=NULL){ |
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/*calling generateCheckString() at this place in future*/ |
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fprintf(customerData,"ID=%d\nForename=%s\nSurname=%s\nPassword=%s\nBalance=%.4f€\n\n", |
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referenceToCustomerInstance->ID,referenceToCustomerInstance->forename, |
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referenceToCustomerInstance->surname,referenceToCustomerInstance->password, |
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referenceToCustomerInstance->balance); |
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fclose(customerData); |
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} |
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else{ |
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printf("Error when accessing the file.\n"); |
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exit(-1); |
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} |
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} |