catzconnect 1.0.3

Secure, minimal SDK for sending encrypted communication requests to the CatzConnect API
Documentation 
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use crate::{
    error::CatzError,
    types::{Channel, MessageType, SendInput, Template},
    utils::validators::validate_email,
};

pub fn verify_payload(input: &SendInput) -> Result<(), CatzError> {
    match (&input.channel, &input.message_type, &input.template) {
        (Channel::Email, MessageType::Verification, Template::Otp) => {
            let to = input
                .payload
                .to
                .as_deref()
                .ok_or_else(|| CatzError::Validation("Missing 'to' in payload".into()))?;

            if input.payload.otp.is_none() {
                return Err(CatzError::Validation("Missing 'otp' in payload".into()));
            }

            validate_email(to)?;

            Ok(())
        }
        (Channel::Email, MessageType::Transactional, Template::Custom) => {
            let to = input
                .payload
                .to
                .as_deref()
                .ok_or_else(|| CatzError::Validation("Missing 'to' in payload".into()))?;

            if input.payload.subject.is_none() {
                return Err(CatzError::Validation("Missing 'subject' in payload".into()));
            }

            if input.payload.body.is_none() {
                return Err(CatzError::Validation("Missing 'body' in payload".into()));
            }

            validate_email(to)?;

            Ok(())
        }
        _ => Err(CatzError::Validation(
            "Unsupported channel/message_type/template combination".into(),
        )),
    }
}