1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168

use crate::ApiError;
use abstract_core::objects::dependency::StaticDependency;
use abstract_sdk::{
    base::{
        AbstractContract, ExecuteHandlerFn, Handler, IbcCallbackHandlerFn, InstantiateHandlerFn,
        QueryHandlerFn, ReceiveHandlerFn, ReplyHandlerFn, SudoHandlerFn,
    },
    core::version_control::AccountBase,
    feature_objects::AnsHost,
    namespaces::BASE_STATE,
    AbstractSdkError,
};
use cosmwasm_std::{Addr, Empty, StdError, StdResult, Storage};
use cw_storage_plus::{Item, Map};
use schemars::JsonSchema;
use serde::{Deserialize, Serialize};
use std::fmt::Debug;

pub const AUTHORIZED_ADDRESSES_NAMESPACE: &str = "authorized_addresses";
pub const MAXIMUM_AUTHORIZED_ADDRESSES: u32 = 15;

pub trait ContractError:
    From<cosmwasm_std::StdError> + From<ApiError> + From<AbstractSdkError> + 'static
{
}
impl<T> ContractError for T where
    T: From<cosmwasm_std::StdError> + From<ApiError> + From<AbstractSdkError> + 'static
{
}

/// The BaseState contains the main addresses needed for sending and verifying messages
/// Every DApp should use the provided **ans_host** contract for token/contract address resolution.
#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
pub struct ApiState {
    /// Used to verify requests
    pub version_control: Addr,
    /// AnsHost contract struct (address)
    pub ans_host: AnsHost,
}

/// The state variables for our ApiContract.
pub struct ApiContract<
    Error: ContractError,
    CustomInitMsg: 'static,
    CustomExecMsg: 'static,
    CustomQueryMsg: 'static,
    Receive: 'static = Empty,
    SudoMsg: 'static = Empty,
> where
    Self: Handler,
{
    pub(crate) contract: AbstractContract<Self, Error>,
    pub(crate) base_state: Item<'static, ApiState>,
    /// Map ProxyAddr -> AuthorizedAddrs
    pub authorized_addresses: Map<'static, Addr, Vec<Addr>>,
    /// The Account on which commands are executed. Set each time in the [`abstract_core::api::ExecuteMsg::Base`] handler.
    pub target_account: Option<AccountBase>,
}

/// Constructor
impl<Error: ContractError, CustomInitMsg, CustomExecMsg, CustomQueryMsg, ReceiveMsg, SudoMsg>
    ApiContract<Error, CustomInitMsg, CustomExecMsg, CustomQueryMsg, ReceiveMsg, SudoMsg>
{
    pub const fn new(
        name: &'static str,
        version: &'static str,
        metadata: Option<&'static str>,
    ) -> Self {
        Self {
            contract: AbstractContract::new(name, version, metadata),
            base_state: Item::new(BASE_STATE),
            authorized_addresses: Map::new(AUTHORIZED_ADDRESSES_NAMESPACE),
            target_account: None,
        }
    }

    pub fn state(&self, store: &dyn Storage) -> StdResult<ApiState> {
        self.base_state.load(store)
    }

    /// Return the address of the proxy for the Account associated with this API.
    /// Set each time in the [`abstract_core::api::ExecuteMsg::Base`] handler.
    pub fn target(&self) -> Result<&Addr, ApiError> {
        Ok(&self
            .target_account
            .as_ref()
            .ok_or_else(|| StdError::generic_err("No target Account specified to execute on."))?
            .proxy)
    }
    /// add dependencies to the contract
    pub const fn with_dependencies(mut self, dependencies: &'static [StaticDependency]) -> Self {
        self.contract = self.contract.with_dependencies(dependencies);
        self
    }

    pub const fn with_instantiate(
        mut self,
        instantiate_handler: InstantiateHandlerFn<Self, CustomInitMsg, Error>,
    ) -> Self {
        self.contract = self.contract.with_instantiate(instantiate_handler);
        self
    }

    pub const fn with_execute(
        mut self,
        execute_handler: ExecuteHandlerFn<Self, CustomExecMsg, Error>,
    ) -> Self {
        self.contract = self.contract.with_execute(execute_handler);
        self
    }

    pub const fn with_query(
        mut self,
        query_handler: QueryHandlerFn<Self, CustomQueryMsg, Error>,
    ) -> Self {
        self.contract = self.contract.with_query(query_handler);
        self
    }

    pub const fn with_replies(
        mut self,
        reply_handlers: &'static [(u64, ReplyHandlerFn<Self, Error>)],
    ) -> Self {
        self.contract = self.contract.with_replies([&[], reply_handlers]);
        self
    }

    pub const fn with_sudo(mut self, sudo_handler: SudoHandlerFn<Self, SudoMsg, Error>) -> Self {
        self.contract = self.contract.with_sudo(sudo_handler);
        self
    }

    pub const fn with_receive(
        mut self,
        receive_handler: ReceiveHandlerFn<Self, ReceiveMsg, Error>,
    ) -> Self {
        self.contract = self.contract.with_receive(receive_handler);
        self
    }

    /// add IBC callback handler to contract
    pub const fn with_ibc_callbacks(
        mut self,
        callbacks: &'static [(&'static str, IbcCallbackHandlerFn<Self, Error>)],
    ) -> Self {
        self.contract = self.contract.with_ibc_callbacks(callbacks);
        self
    }
}

#[cfg(test)]
mod tests {

    use super::*;
    use crate::mock::{ApiMockResult, MOCK_API};

    #[test]
    fn set_and_get_target() -> ApiMockResult {
        let mut mock = MOCK_API;
        let target = Addr::unchecked("target");
        mock.target_account = Some(AccountBase {
            proxy: target.clone(),
            manager: Addr::unchecked("manager"),
        });
        assert_eq!(mock.target()?, &target);
        Ok(())
    }
}