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use schemars::JsonSchema;
use serde::{Deserialize, Serialize};

use cosmwasm_bignumber::Decimal256;
use cosmwasm_std::HumanAddr;

#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
pub struct InitMsg {
    pub owner: HumanAddr,
    pub base_asset: String,
}

#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
#[serde(rename_all = "snake_case")]
pub enum HandleMsg {
    UpdateConfig {
        owner: Option<HumanAddr>,
    },
    RegisterFeeder {
        asset: String,
        feeder: HumanAddr,
    },
    FeedPrice {
        prices: Vec<(String, Decimal256)>, // (asset, price)
    },
}

#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
#[serde(rename_all = "snake_case")]
pub enum QueryMsg {
    Config {},
    Feeder {
        asset: String,
    },
    Price {
        base: String,
        quote: String,
    },
    Prices {
        start_after: Option<String>,
        limit: Option<u32>,
    },
}

// We define a custom struct for each query response
#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
pub struct ConfigResponse {
    pub owner: HumanAddr,
    pub base_asset: String,
}

// We define a custom struct for each query response
#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
pub struct FeederResponse {
    pub asset: String,
    pub feeder: HumanAddr,
}

// We define a custom struct for each query response
#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
pub struct PriceResponse {
    pub rate: Decimal256,
    pub last_updated_base: u64,
    pub last_updated_quote: u64,
}

// We define a custom struct for each query response
#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
pub struct PricesResponseElem {
    pub asset: String,
    pub price: Decimal256,
    pub last_updated_time: u64,
}

// We define a custom struct for each query response
#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
pub struct PricesResponse {
    pub prices: Vec<PricesResponseElem>,
}

/// We currently take no arguments for migrations
#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
pub struct MigrateMsg {}