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use crate::{
    currency::Currency, error::Error, order, order::Order, payment_method::PaymentMethod, Gateway,
};
use serde::Serialize;

impl Gateway {
    pub async fn create_order<'a>(
        &self,
        order_id: &'a str,
        url: &'a Option<&order::Url<'a>>,
        amount: u64,
        vat_amount: u64,
        currency: &'a Currency,
        language: &'a str,
        payment_methods: Vec<&'a PaymentMethod>,
        token: &'a Option<order::Token>,
    ) -> Result<Order, Error> {
        #[derive(Serialize)]
        struct Request<'a> {
            order: OrderRequest<'a>,

            #[serde(skip_serializing_if = "Option::is_none")]
            url: &'a Option<&'a order::Url<'a>>,

            paymentwindow: PaymentWindow<'a>,

            #[serde(skip_serializing_if = "Option::is_none")]
            token: &'a Option<order::Token>,
        }

        #[derive(Serialize)]
        struct OrderRequest<'a> {
            amount: u64,

            id: &'a str,

            #[serde(rename = "vatamount")]
            vat_amount: u64,

            currency: &'a str,
        }

        #[derive(Serialize)]
        struct PaymentMethodObject<'a> {
            id: &'a PaymentMethod,

            action: &'a str,
        }

        #[derive(Serialize)]
        struct PaymentWindow<'a> {
            language: &'a str,

            #[serde(rename = "paymentmethods")]
            payment_methods: Vec<PaymentMethodObject<'a>>,
        }

        let currency = &currency.to_string();

        let body = Request {
            order: OrderRequest {
                amount,
                id: order_id,
                vat_amount,
                currency,
            },
            url,
            paymentwindow: PaymentWindow {
                language,
                payment_methods: payment_methods
                    .into_iter()
                    .map(|p| PaymentMethodObject {
                        id: p,
                        action: "include",
                    })
                    .collect::<Vec<PaymentMethodObject>>(),
            },
            token,
        };

        let url = "https://api.v1.checkout.bambora.com/sessions";
        let res: Order = self.send(url, &body).await?;
        Ok(res)
    }
}