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use serde::{Deserialize, Serialize};

/// Withdrawal is a withdrawal resource.
#[derive(Debug, Serialize, Deserialize)]
pub struct Withdrawal {
    pub id: String,
    /// Withdrawal amount in satoshis
    pub amount: u64,
    /// Withdrawal fiat_value
    pub fiat_value: Option<u64>,
    /// kind of the transaction ln/chain
    #[serde(rename = "type")]
    pub kind: Type,
    /// invoice or tx
    pub reference: String,
    /// Withdrawal fee in satoshis
    pub fee: Option<u64>,
    /// unpaid/processing/paid
    pub status: Status,
    /// timestamp
    pub processed_at: Option<u64>,
    /// error if status == failed
    pub error: Option<String>,

    /// Hashed Order
    /// OpenNode signs all charge related events it sends
    /// to your endpoints by including a hashed_order field
    /// on the event payload. This allows you to validate that
    /// the events were sent by OpenNode and not by a third party.
    ///
    /// You can verify the signatures by computing an HMAC with the SHA256 hash function. Use the
    /// api-key used on the charge creation as the key, and the charge id as the message.
    pub hashed_order: Option<String>,
}

#[derive(Debug, Serialize, Deserialize)]
pub enum Type {
    #[serde(rename = "ln")]
    Ln,
    #[serde(rename = "chain")]
    Chain,
}

#[derive(Debug, Serialize, Deserialize)]
pub enum Status {
    #[serde(rename = "confirmed")]
    Confirmed,
    #[serde(rename = "pending")]
    Pending,
    #[serde(rename = "failed")]
    Failed,
}

/// Payload is a withdrawal payload.
#[derive(Debug, Serialize, Deserialize)]
pub struct Payload {
    /// Withdrawal type (ln/chain)
    #[serde(rename = "type")]
    pub kind: Type,
    /// Bitcoin address/LN BOLT11 invoice
    pub address: String,
    /// Amount to withdraw in satoshis (required when type = 'chain')
    #[serde(skip_serializing_if = "Option::is_none")]
    pub amount: Option<u64>,
    /// URL to receive withdrawal webhook
    #[serde(skip_serializing_if = "Option::is_none")]
    pub callback_url: Option<String>,
}

impl Payload {
    pub fn new(t: Type, address: impl Into<String>, amount: Option<u64>) -> Payload {
        Payload {
            kind: t,
            address: address.into(),
            amount: amount,
            callback_url: None,
        }
    }
}