use borsh::{BorshDeserialize, BorshSerialize};
use near_client::prelude::*;
use serde::{Deserialize, Serialize};
use std::{collections::HashSet, time::Duration};

#[derive(Clone, Debug, Serialize, Deserialize)]
pub struct PublicKeys {
    pub timeout: Duration,
    pub participants: HashSet<AccountId>,
}

#[derive(Clone, Debug, Serialize, Deserialize)]
pub struct ExchangeMessage {
    pub account_id: AccountId,
    pub message: Data,
}

#[derive(Clone, Debug, Serialize, Deserialize)]
pub struct Data {
    pub moderator_pk: Ed25519PublicKey,
    pub data: Vec<u8>,
}

#[derive(Clone, Debug, Serialize, Deserialize)]
pub struct ParticipantInfo {
    pub public_key: Ed25519PublicKey,
    pub account_id: AccountId,
}

#[derive(Clone, Debug, Serialize, Deserialize, BorshSerialize, BorshDeserialize)]
pub struct Bandwidth {
    pub speed: u32,
    pub units: String,
}

#[derive(Clone, Debug, Serialize, Deserialize, BorshSerialize, BorshDeserialize)]
pub struct NodeInfo {
    pub region: String,
    pub bandwidth: Bandwidth,
    pub account_id: AccountId,
}

#[derive(Debug, Serialize, Deserialize)]
#[serde(tag = "response", content = "body")]
#[serde(rename_all = "snake_case")]
pub enum ApiResponse<T> {
    Success(T),
    Timeout,
}

#[cfg(test)]
mod tests {

    use super::*;
    use std::str::FromStr;

    #[test]
    fn node_info_json() {
        let s1 = serde_json::to_value(&NodeInfo {
            account_id: AccountId::from_str("account.testnet").unwrap(),
            bandwidth: Bandwidth {
                speed: 100,
                units: "mbps".to_owned(),
            },
            region: "us".to_owned(),
        })
        .unwrap();

        let s2 = serde_json::json!({
            "account_id": "account.testnet",
            "region": "us",
            "bandwidth": {
                "speed": 100,
                "units": "mbps"
            }
        });

        assert_eq!(s1, s2);
    }

    #[test]
    fn api_response_parsing() {
        let test_data = serde_json::to_value(&ApiResponse::Success(NodeInfo {
            account_id: AccountId::from_str("account.testnet").unwrap(),
            bandwidth: Bandwidth {
                speed: 100,
                units: "mbps".to_owned(),
            },
            region: "us".to_owned(),
        }))
        .unwrap();

        let test_data_match = serde_json::json!({
            "response": "success",
            "body": {
                "account_id": "account.testnet",
                "region": "us",
                "bandwidth": {
                    "speed": 100,
                    "units": "mbps"
                }
            }
        });
        assert_eq!(test_data, test_data_match);

        let test_data = serde_json::to_value(&ApiResponse::<()>::Timeout).unwrap();
        let test_data_match = serde_json::json!({
            "response": "timeout",
        });
        assert_eq!(test_data, test_data_match);
    }
}