初始化

CosmeticManager.cpp

@@ -0,0 +1,147 @@
+#include "CosmeticManager.h"
+#include <fstream>
+#include <iostream>
+#include "Cosmetic.h"
+CosmeticManager::CosmeticManager()
+        : cosmetics(new Cosmetic*[10]), count(0), capacity(10) {}
+
+CosmeticManager::~CosmeticManager() {
+    for (int i = 0; i < count; ++i) {
+        delete cosmetics[i];
+    }
+    delete[] cosmetics;
+}
+
+void CosmeticManager::resizeArray() {
+    int newCapacity = capacity * 2;
+    Cosmetic** newArray = new Cosmetic*[newCapacity];
+
+    for (int i = 0; i < count; ++i) {
+        newArray[i] = cosmetics[i];
+    }
+
+    delete[] cosmetics;
+    cosmetics = newArray;
+    capacity = newCapacity;
+}
+
+void CosmeticManager::addCosmetic(const Cosmetic& cosmetic) {
+    if (count >= capacity) {
+        resizeArray();
+    }
+    cosmetics[count++] = new Cosmetic(cosmetic);
+    saveToFile();
+}
+
+bool CosmeticManager::deleteCosmetic(const std::string& name) {
+    for (int i = 0; i < count; ++i) {
+        if (cosmetics[i]->getName() == name) {
+            delete cosmetics[i];
+            // 移动后续元素
+            for (int j = i; j < count - 1; ++j) {
+                cosmetics[j] = cosmetics[j + 1];
+            }
+            count--;
+            saveToFile();
+            return true;
+        }
+    }
+    return false;
+}
+
+Cosmetic* CosmeticManager::findCosmetic(const std::string& name) {
+    for (int i = 0; i < count; ++i) {
+        if (cosmetics[i]->getName() == name) {
+            return cosmetics[i];
+        }
+    }
+    return nullptr;
+}
+
+bool CosmeticManager::modifyCosmetic(const std::string& name, double newPrice, bool newType) {
+    Cosmetic* cosmetic = findCosmetic(name);
+    if (cosmetic) {
+        cosmetic->setPrice(newPrice);
+        cosmetic->setType(newType);
+        saveToFile();
+        return true;
+    }
+    return false;
+}
+
+void CosmeticManager::loadFromFile() {
+    std::ifstream file("Cosmetic.txt");
+    if (!file.is_open()) return;
+
+    std::string name, expirationDate;
+    double price;
+    bool type;
+
+    while (file >> name >> price >> type >> expirationDate) {
+        addCosmetic(Cosmetic(name, price, type, expirationDate));
+    }
+    file.close();
+}
+
+void CosmeticManager::saveToFile() {
+    std::ofstream file("Cosmetic.txt");
+    for (int i = 0; i < count; ++i) {
+        file << cosmetics[i]->getName() << " "
+             << cosmetics[i]->getPrice() << " "
+             << cosmetics[i]->getType() << " "
+             << cosmetics[i]->getExpirationDate() << "\n";  // 新增过期日期
+    }
+    file.close();
+}
+
+void CosmeticManager::displayAll() const {
+    for (int i = 0; i < count; ++i) {
+        std::cout << "品牌: " << cosmetics[i]->getName()
+                  << " | 价格: " << cosmetics[i]->getPrice()
+                  << " | 类型: " << (cosmetics[i]->getType() ? "国产" : "进口")
+                  << " | 过期日期: " << cosmetics[i]->getExpirationDate()  // 新增
+                  << std::endl;
+    }
+}
+// 查找临期化妆品，小于60天
+void CosmeticManager::displayExpiringCosmetics() const {
+    std::string date = Cosmetic::getTime();
+    for (int i = 0; i < count; ++i) {
+        //这里可以调整判定临期的时间（天）
+        if (cosmetics[i]->getExpirationDate() < Cosmetic::getTimeAdd(60)) {
+            std::cout << "品牌: " << cosmetics[i]->getName()
+                      << " | 过期日期: " << cosmetics[i]->getExpirationDate()
+                      << std::endl;
+        }
+    }
+}
+// 基于YYYY-MM-DD格式的日期合法性检查
+bool CosmeticManager::isValidDate(const std::string& date) {
+    if (date.length() != 10 || date[4] != '-' || date[7] != '-') {
+        return false;
+    }
+    for (int i = 0; i < 10; ++i) {
+        if (i == 4 || i == 7) continue;
+        if (!isdigit(date[i])) {
+            return false;
+        }
+    }
+
+    int year, month, day;
+    if (sscanf(date.c_str(), "%d-%d-%d", &year, &month, &day) != 3) {
+        return false;
+    }
+
+    // 基本范围检查
+    if (year < 1 || month < 1 || month > 12 || day < 1) {
+        return false;
+    }
+
+    // 每月天数检查（包含闰年处理）
+    static const int daysInMonth[] = {31, 28 + (month == 2 && (year % 400 == 0 || (year % 100 != 0 && year % 4 == 0))),
+                                      31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
+    int maxDay = daysInMonth[month - 1];
+
+    return day <= maxDay;
+}
+