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use cosmwasm_std::{Binary, Decimal, HumanAddr, Uint128};
use cw20::Cw20ReceiveMsg;
use schemars::JsonSchema;
use serde::{Deserialize, Serialize};

use crate::common::OrderBy;

#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
pub struct InitMsg {
    pub mirror_token: HumanAddr,
    pub quorum: Decimal,
    pub threshold: Decimal,
    pub voting_period: u64,
    pub effective_delay: u64,
    pub expiration_period: u64,
    pub proposal_deposit: Uint128,
}

#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
#[serde(rename_all = "snake_case")]
pub enum HandleMsg {
    Receive(Cw20ReceiveMsg),
    UpdateConfig {
        owner: Option<HumanAddr>,
        quorum: Option<Decimal>,
        threshold: Option<Decimal>,
        voting_period: Option<u64>,
        effective_delay: Option<u64>,
        expiration_period: Option<u64>,
        proposal_deposit: Option<Uint128>,
    },
    CastVote {
        poll_id: u64,
        vote: VoteOption,
        amount: Uint128,
    },
    WithdrawVotingTokens {
        amount: Option<Uint128>,
    },
    EndPoll {
        poll_id: u64,
    },
    ExecutePoll {
        poll_id: u64,
    },
    ExpirePoll {
        poll_id: u64,
    },
}

#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
#[serde(rename_all = "snake_case")]
pub enum Cw20HookMsg {
    /// StakeVotingTokens a user can stake their mirror token to receive rewards
    /// or do vote on polls
    StakeVotingTokens {},
    /// CreatePoll need to receive deposit from a proposer
    CreatePoll {
        title: String,
        description: String,
        link: Option<String>,
        execute_msg: Option<ExecuteMsg>,
    },
}

#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
#[serde(rename_all = "snake_case")]
pub struct ExecuteMsg {
    pub contract: HumanAddr,
    pub msg: Binary,
}

#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
#[serde(rename_all = "snake_case")]
pub enum QueryMsg {
    Config {},
    State {},
    Staker {
        address: HumanAddr,
    },
    Poll {
        poll_id: u64,
    },
    Polls {
        filter: Option<PollStatus>,
        start_after: Option<u64>,
        limit: Option<u32>,
        order_by: Option<OrderBy>,
    },
    Voters {
        poll_id: u64,
        start_after: Option<HumanAddr>,
        limit: Option<u32>,
        order_by: Option<OrderBy>,
    },
}

#[derive(Serialize, Deserialize, Clone, PartialEq, JsonSchema)]
pub struct ConfigResponse {
    pub owner: HumanAddr,
    pub mirror_token: HumanAddr,
    pub quorum: Decimal,
    pub threshold: Decimal,
    pub voting_period: u64,
    pub effective_delay: u64,
    pub expiration_period: u64,
    pub proposal_deposit: Uint128,
}

#[derive(Serialize, Deserialize, Clone, PartialEq, JsonSchema)]
pub struct StateResponse {
    pub poll_count: u64,
    pub total_share: Uint128,
    pub total_deposit: Uint128,
}

#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema)]
pub struct PollResponse {
    pub id: u64,
    pub creator: HumanAddr,
    pub status: PollStatus,
    pub end_height: u64,
    pub title: String,
    pub description: String,
    pub link: Option<String>,
    pub deposit_amount: Uint128,
    pub execute_data: Option<ExecuteMsg>,
    pub yes_votes: Uint128, // balance
    pub no_votes: Uint128,  // balance
    pub total_balance_at_end_poll: Option<Uint128>,
}

#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema)]
pub struct PollsResponse {
    pub polls: Vec<PollResponse>,
}

#[derive(Serialize, Deserialize, Clone, PartialEq, JsonSchema)]
pub struct PollCountResponse {
    pub poll_count: u64,
}

#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema)]
pub struct StakerResponse {
    pub balance: Uint128,
    pub share: Uint128,
    pub locked_balance: Vec<(u64, VoterInfo)>,
}

#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema)]
pub struct VotersResponseItem {
    pub voter: HumanAddr,
    pub vote: VoteOption,
    pub balance: Uint128,
}

#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema)]
pub struct VotersResponse {
    pub voters: Vec<VotersResponseItem>,
}

/// We currently take no arguments for migrations
#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
pub struct MigrateMsg {
    pub version: u32,
}

#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
pub struct VoterInfo {
    pub vote: VoteOption,
    pub balance: Uint128,
}

#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
#[serde(rename_all = "snake_case")]
pub enum PollStatus {
    InProgress,
    Passed,
    Rejected,
    Executed,
    Expired,
}

#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
#[serde(rename_all = "snake_case")]
pub enum VoteOption {
    Yes,
    No,
}