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

use cosmwasm_std::{HumanAddr, Uint128};
use cw20::Cw20ReceiveMsg;
use terraswap::asset::Asset;

use crate::common::OrderBy;

#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
pub struct InitMsg {}

#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
#[serde(rename_all = "snake_case")]
pub enum HandleMsg {
    Receive(Cw20ReceiveMsg),

    ///////////////////////
    /// User Operations ///
    ///////////////////////
    SubmitOrder {
        offer_asset: Asset,
        ask_asset: Asset,
    },
    CancelOrder {
        order_id: u64,
    },

    /// Arbitrager execute order to get profit
    ExecuteOrder {
        execute_asset: Asset,
        order_id: u64,
    },
}

#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
#[serde(rename_all = "snake_case")]
pub enum Cw20HookMsg {
    SubmitOrder {
        ask_asset: Asset,
    },

    /// Arbitrager execute order to get profit
    ExecuteOrder {
        order_id: u64,
    },
}

#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
#[serde(rename_all = "snake_case")]
pub enum QueryMsg {
    Order {
        order_id: u64,
    },
    Orders {
        bidder_addr: Option<HumanAddr>,
        start_after: Option<u64>,
        limit: Option<u32>,
        order_by: Option<OrderBy>,
    },
    LastOrderId {},
}

#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
pub struct OrderResponse {
    pub order_id: u64,
    pub bidder_addr: HumanAddr,
    pub offer_asset: Asset,
    pub ask_asset: Asset,
    pub filled_offer_amount: Uint128,
    pub filled_ask_amount: Uint128,
}

#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
pub struct OrdersResponse {
    pub orders: Vec<OrderResponse>,
}

#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
pub struct LastOrderIdResponse {
    pub last_order_id: u64,
}

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