sd

sequenceDiagram
    participant Client
    participant Controller
    participant ResourceHelper
    participant EmailSessionHelper
    participant JsonResult

    Client->>Controller: Request
    Controller->>ResourceHelper: GetResourceString("/global/captcha", "CAPTCHA_DCF_V3_THRESHOLD_SCORE")
    ResourceHelper-->>Controller: thresholdScore
    Controller->>Controller: Convert.ToDouble(thresholdScore)
    alt score < thresholdScore
        Controller->>EmailSessionHelper: SetValue("DCFHighRisk", true)
        Controller->>EmailSessionHelper: SetValue("recaptchaSuccess", false)
        Controller->>JsonResult: new JsonResult({CaptchaV3Score, RiskCode, IsCaptchaSuccess: false, CheckV2HighRisk: true})
    else score >= thresholdScore
        Controller->>EmailSessionHelper: SetValue("DCFHighRisk", false)
        Controller->>EmailSessionHelper: SetValue("recaptchaSuccess", true)
        Controller->>JsonResult: new JsonResult({CaptchaV3Score, RiskCode, IsCaptchaSuccess: true, CheckV2HighRisk: false})
    end
    JsonResult-->>Client: JsonResponse