package com.mydreamjob.job.dto;

import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
import io.swagger.v3.oas.annotations.extensions.Extension;
import io.swagger.v3.oas.annotations.extensions.ExtensionProperty;
import io.swagger.v3.oas.annotations.media.Schema;
import jakarta.validation.constraints.NotBlank;
import jakarta.validation.constraints.Size;
import lombok.Data;

import java.util.List;

/**
 * 创建/编辑岗位的请求 DTO
 */
@Data
public class JobCreateRequest {

    @NotBlank(message = "job title is required")
    @Size(max = 120, message = "title must be at most 120 characters")
    private String title;

    @NotBlank(message = "job description is required")
    private String description;

    private String requirements;

    @NotBlank(message = "city is required")
    @Size(max = 80, message = "city must be at most 80 characters")
    private String city;

    @NotBlank(message = "employment type is required")
    @Size(max = 30, message = "employment type must be at most 30 characters")
    private String employmentType;

    @Schema(description = "最低月薪，单位元/月")
    private Integer salaryMin;

    @Schema(description = "最高月薪，单位元/月")
    private Integer salaryMax;

    @Size(max = 40, message = "experience must be at most 40 characters")
    @Schema(types = {"string", "null"}, maxLength = 40,
            description = "经验要求，≤40 字符。缺省/null：创建存 NULL；空串或纯空白清空为 NULL；"
                    + "非空去两端空白后保存；超过 40 字符拒绝且不截断。")
    private String experience;

    @Size(max = 40, message = "education must be at most 40 characters")
    @Schema(types = {"string", "null"}, maxLength = 40,
            description = "学历要求，≤40 字符。缺省/null：创建存 NULL；空串或纯空白清空为 NULL；"
                    + "非空去两端空白后保存；超过 40 字符拒绝且不截断。")
    private String education;

    @Schema(types = {"array", "null"}, extensions = @Extension(name = "x-normalization", properties = {
            @ExtensionProperty(name = "trimItems", value = "true", parseValue = true),
            @ExtensionProperty(name = "deduplicate", value = "true", parseValue = true),
            @ExtensionProperty(name = "rejectBlankItems", value = "true", parseValue = true),
            @ExtensionProperty(name = "maxItems", value = "20", parseValue = true),
            @ExtensionProperty(name = "itemMaxLength", value = "40", parseValue = true)}),
            description = "福利标签：字符串数组，最多 20 项（在去重并去除首尾空白之后计算）、trim后单项 ≤40 字符；"
            + "null 或缺省：创建时不设置（存 NULL）；传 [] 表示清空；非空数组会逐项 trim、拒绝空白项、"
            + "去重保序、超 20 项或单项超 40 字符一律 400。")
    private List<String> benefits;

    /** 薪资月数：只接受 JSON 整数，范围 1—24；小数/字符串/布尔等一律 400（见 StrictIntegerDeserializer）。 */
    @Schema(types = {"integer", "null"},
            description = "薪资月数；仅接受 JSON 整数 1—24，非整数（小数/字符串/布尔等）一律 400；"
                    + "缺省/null 表示不设置（创建存 NULL）。",
            minimum = "1", maximum = "24")
    @JsonDeserialize(using = StrictIntegerDeserializer.class)
    private Integer salaryMonths;

    @Size(max = 255, message = "work location must be at most 255 characters")
    @Schema(types = {"string", "null"}, maxLength = 255,
            description = "工作地点，≤255 字符。缺省/null：创建存 NULL；空串或纯空白清空为 NULL；"
                    + "非空去两端空白后保存；超过 255 字符拒绝且不截断。")
    private String workLocation;
}