package com.demo.action;

import com.opensymphony.xwork2.ActionSupport;

import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;

public class ValidationAction extends ActionSupport {

    private static final DateTimeFormatter TIME_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");

    private String username;
    private String email;
    private Integer age;
    private String bio;
    private String scoreBand;
    private String submittedAt;
    private boolean seniorTrack;

    @Override
    public String execute() {
        username = normalize(username);
        email = normalize(email);
        bio = normalize(bio);
        seniorTrack = age >= 30;
        scoreBand = seniorTrack ? "mid" : "early";
        submittedAt = LocalDateTime.now().format(TIME_FORMATTER);
        return SUCCESS;
    }

    @Override
    public void validate() {
        if (username == null || username.trim().length() < 3 || username.trim().length() > 20) {
            addFieldError("username", "用户名长度需在 3 到 20 个字符之间。/ Username must be between 3 and 20 characters.");
        }
        if (email == null || !email.contains("@") || email.indexOf('@') == email.length() - 1) {
            addFieldError("email", "请输入有效邮箱。/ Enter a valid email address.");
        }
        if (age == null || age < 18 || age > 60) {
            addFieldError("age", "年龄需在 18 到 60 岁之间。/ Age must be between 18 and 60.");
        }
        if (bio != null && bio.trim().length() > 240) {
            addFieldError("bio", "简介不能超过 240 个字符。/ Bio must stay under 240 characters.");
        }
    }

    private String normalize(String value) {
        return value == null ? null : value.trim();
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }

    public String getBio() {
        return bio;
    }

    public void setBio(String bio) {
        this.bio = bio;
    }

    public String getScoreBand() {
        return scoreBand;
    }

    public String getSubmittedAt() {
        return submittedAt;
    }

    public boolean isSeniorTrack() {
        return seniorTrack;
    }
}