Product.java

package com.ecommerce.product.entity;

import jakarta.persistence.*;
import jakarta.validation.constraints.DecimalMin;
import jakarta.validation.constraints.NotBlank;
import jakarta.validation.constraints.NotNull;
import org.hibernate.annotations.CreationTimestamp;
import org.hibernate.annotations.UpdateTimestamp;
import org.springframework.data.elasticsearch.annotations.Document;
import org.springframework.data.elasticsearch.annotations.Field;
import org.springframework.data.elasticsearch.annotations.FieldType;

import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.util.List;

@Entity
@Table(name = "products")
@Document(indexName = "products")
public class Product {
    
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @org.springframework.data.annotation.Id
    private Long id;
    
    @NotBlank(message = "Product name is required")
    @Field(type = FieldType.Text, analyzer = "standard")
    private String name;
    
    @Column(length = 1000)
    @Field(type = FieldType.Text, analyzer = "standard")
    private String description;
    
    @NotNull(message = "Price is required")
    @DecimalMin(value = "0.0", inclusive = false, message = "Price must be greater than 0")
    @Field(type = FieldType.Double)
    private BigDecimal price;
    
    @NotNull(message = "Stock quantity is required")
    @Field(type = FieldType.Integer)
    private Integer stockQuantity;
    
    @NotBlank(message = "Category is required")
    @Field(type = FieldType.Keyword)
    private String category;
    
    @Field(type = FieldType.Keyword)
    private String brand;
    
    @ElementCollection
    @Field(type = FieldType.Keyword)
    private List<String> tags;
    
    @ElementCollection
    private List<String> imageUrls;
    
    @Field(type = FieldType.Double)
    private Double weight;
    
    @Field(type = FieldType.Keyword)
    private String dimensions;
    
    @Enumerated(EnumType.STRING)
    @Field(type = FieldType.Keyword)
    private ProductStatus status = ProductStatus.ACTIVE;
    
    @Field(type = FieldType.Boolean)
    private Boolean featured = false;
    
    @Field(type = FieldType.Double)
    private Double rating = 0.0;
    
    @Field(type = FieldType.Integer)
    private Integer reviewCount = 0;
    
    @CreationTimestamp
    @Field(type = FieldType.Date)
    private LocalDateTime createdAt;
    
    @UpdateTimestamp
    @Field(type = FieldType.Date)
    private LocalDateTime updatedAt;

    // Constructors
    public Product() {}

    public Product(String name, String description, BigDecimal price, Integer stockQuantity, String category) {
        this.name = name;
        this.description = description;
        this.price = price;
        this.stockQuantity = stockQuantity;
        this.category = category;
    }

    // Getters and Setters
    public Long getId() { return id; }
    public void setId(Long id) { this.id = id; }

    public String getName() { return name; }
    public void setName(String name) { this.name = name; }

    public String getDescription() { return description; }
    public void setDescription(String description) { this.description = description; }

    public BigDecimal getPrice() { return price; }
    public void setPrice(BigDecimal price) { this.price = price; }

    public Integer getStockQuantity() { return stockQuantity; }
    public void setStockQuantity(Integer stockQuantity) { this.stockQuantity = stockQuantity; }

    public String getCategory() { return category; }
    public void setCategory(String category) { this.category = category; }

    public String getBrand() { return brand; }
    public void setBrand(String brand) { this.brand = brand; }

    public List<String> getTags() { return tags; }
    public void setTags(List<String> tags) { this.tags = tags; }

    public List<String> getImageUrls() { return imageUrls; }
    public void setImageUrls(List<String> imageUrls) { this.imageUrls = imageUrls; }

    public Double getWeight() { return weight; }
    public void setWeight(Double weight) { this.weight = weight; }

    public String getDimensions() { return dimensions; }
    public void setDimensions(String dimensions) { this.dimensions = dimensions; }

    public ProductStatus getStatus() { return status; }
    public void setStatus(ProductStatus status) { this.status = status; }

    public Boolean getFeatured() { return featured; }
    public void setFeatured(Boolean featured) { this.featured = featured; }

    public Double getRating() { return rating; }
    public void setRating(Double rating) { this.rating = rating; }

    public Integer getReviewCount() { return reviewCount; }
    public void setReviewCount(Integer reviewCount) { this.reviewCount = reviewCount; }

    public LocalDateTime getCreatedAt() { return createdAt; }
    public void setCreatedAt(LocalDateTime createdAt) { this.createdAt = createdAt; }

    public LocalDateTime getUpdatedAt() { return updatedAt; }
    public void setUpdatedAt(LocalDateTime updatedAt) { this.updatedAt = updatedAt; }

    // Enums
    public enum ProductStatus {
        ACTIVE, INACTIVE, OUT_OF_STOCK, DISCONTINUED
    }
}