#include <stdio.h>
#include <cstring>

#include "utils.h"
#include "app.h"
#include "wallet.h"
#include "enclave.h"

void info_print(const char* str) {
    printf("[INFO] %s\n", str);
}

void warning_print(const char* str) {
    printf("[WARNING] %s\n", str);
}

void error_print(const char* str) {
    printf("[ERROR] %s\n", str);
}

void print_wallet(const wallet_t* wallet) {
    printf("\n-----------------------------------------\n\n");
    printf("Simple password wallet based on Intel SGX.\n\n");
    printf("Number of items: %lu\n\n", wallet->size);
    for (int i = 0; i < wallet->size; ++i) {
        printf("#%d -- %s\n", i, wallet->items[i].title);
        printf("[username:] %s\n", wallet->items[i].username);
        printf("[password:] %s\n", wallet->items[i].password);
        printf("\n");
    }
    printf("\n------------------------------------------\n\n");
}

int is_error(int error_code) {
    char err_message[100];

    // check error case
    switch(error_code) {
        case RET_SUCCESS:
            return 0;

        case ERR_PASSWORD_OUT_OF_RANGE:
            sprintf(err_message, "Password should be at least 8 characters long and at most %d.", MAX_ITEM_SIZE);
            break;

        case ERR_WALLET_ALREADY_EXISTS:
            sprintf(err_message, "Wallet already exists: delete file '%s' first.", WALLET_FILE);
            break;

        case ERR_CANNOT_SAVE_WALLET:
            strcpy(err_message, "Coud not save wallet.");
            break;

        case ERR_CANNOT_LOAD_WALLET:
            strcpy(err_message, "Coud not load wallet.");
            break;

        case ERR_WRONG_MASTER_PASSWORD:
            strcpy(err_message, "Wrong master password."); 
            break;

        case ERR_WALLET_FULL:
            sprintf(err_message, "Wallet full (maximum number of item: %d).", MAX_ITEMS);
            break;

        case ERR_ITEM_DOES_NOT_EXIST: 
            strcpy(err_message, "Item does not exist."); 
            break;

        case ERR_ITEM_TOO_LONG:
            sprintf(err_message, "Item too longth (maximum size: %d).", MAX_ITEM_SIZE); 
            break;

        case ERR_FAIL_SEAL:
            sprintf(err_message, "Fail to seal wallet."); 
            break;

        case ERR_FAIL_UNSEAL:
            sprintf(err_message, "Fail to unseal wallet."); 
            break;

        default:
            sprintf(err_message, "Unknown error."); 
    }

    // print error message
    error_print(err_message);
    return 1;
}

void show_help() {
	const char* command = "[-h Show this screen] [-v Show version] [-s Show wallet] " \
		"[-n master-password] [-p master-password -c new-master-password]" \
		"[-p master-password -a -x items_title -y items_username -z toitems_password]" \
		"[-p master-password -r items_index]";
	printf("\nusage: %s %s\n\n", APP_NAME, command);
}