package client

import (
	"log/slog"
	"net/http"
	"strings"

	"schedule_converter/config"
)

const defaultUserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"

func GetHeaders() http.Header {
	return http.Header{
		"User-Agent":      []string{defaultUserAgent},
		"Accept":          []string{"text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8"},
		"Accept-Language": []string{"zh-CN,zh;q=0.9,en;q=0.8"},
	}
}

func GetHeadersWithContentType(contentType string) http.Header {
	headers := GetHeaders()
	headers.Set("Content-Type", contentType)
	return headers
}

func GetInitialCookiesWithClient(httpClient *http.Client) error {
	slog.Info("访问登录页面获取初始Cookie")

	req, err := http.NewRequest("GET", config.Get().BaseURL+"/loginNOCAS", nil)
	if err != nil {
		return err
	}
	req.Header = GetHeaders()

	resp, err := httpClient.Do(req)
	if err != nil {
		return err
	}
	defer resp.Body.Close()

	slog.Info("登录页面访问完成", "status_code", resp.StatusCode)
	return nil
}

func CheckLoginSuccess(body string) bool {
	return strings.Contains(body, "本科教学管理服务系统")
}

func IsCaptchaError(body string) bool {
	return strings.Contains(body, "验证码")
}