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
//! Fee Recipient Update Proposal.
use crate::ProposalHeader;
use cosmwasm_std::{from_slice, to_binary, Uint128};
use schemars::JsonSchema;
use serde::{Deserialize, Serialize};

/// Fee Recipient Update Proposal.
///
/// The [`FeeRecipientUpdateProposal`] updates the recipient of the wrapping
/// fees.
///
#[allow(clippy::module_name_repetitions)]
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub struct FeeRecipientUpdateProposal {
    header: ProposalHeader,
    fee_recipient_address: String,
}

impl FeeRecipientUpdateProposal {
    /// Creates a new fee recipient update proposal.
    #[must_use]
    pub const fn new(header: ProposalHeader, address: String) -> Self {
        Self {
            header,
            fee_recipient_address: address,
        }
    }

    /// Get the proposal header.
    #[must_use]
    pub const fn header(&self) -> ProposalHeader {
        self.header
    }

    /// Get the fee recipient address.
    #[must_use]
    pub fn fee_recipient_address(&self) -> String {
        self.fee_recipient_address.clone()
    }

    /// Get the proposal as a bytes
    #[must_use]
    pub fn to_bytes(&self) -> Vec<u8> {
        let mut bytes = self.header.to_bytes().to_vec();

        let message = to_binary(&UpdateConfigMsg {
            governor: None,
            is_native_allowed: None,
            wrapping_limit: None,
            fee_percentage: None,
            fee_recipient: Some(self.fee_recipient_address()),
        })
        .unwrap();
        bytes.extend_from_slice(&message.to_vec());

        bytes
    }

    /// Get the proposal as a bytes without copying.
    #[must_use]
    pub fn into_bytes(self) -> Vec<u8> {
        self.to_bytes()
    }
}

impl From<Vec<u8>> for FeeRecipientUpdateProposal {
    fn from(bytes: Vec<u8>) -> Self {
        let f = 0usize;
        let t = ProposalHeader::LENGTH;
        let mut header_bytes = [0u8; ProposalHeader::LENGTH];
        header_bytes.copy_from_slice(&bytes[f..t]);
        let header = ProposalHeader::from(header_bytes);

        let f = t;
        let msg_bytes = &bytes[f..];
        let decoded_msg: UpdateConfigMsg = from_slice(&msg_bytes).unwrap();

        Self::new(header, decoded_msg.fee_recipient.unwrap_or("".to_string()))
    }
}

impl From<FeeRecipientUpdateProposal> for Vec<u8> {
    fn from(proposal: FeeRecipientUpdateProposal) -> Self {
        proposal.to_bytes()
    }
}

#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq, JsonSchema)]
#[serde(rename_all = "snake_case")]
struct UpdateConfigMsg {
    pub governor: Option<String>,
    pub is_native_allowed: Option<bool>,
    pub wrapping_limit: Option<Uint128>,
    pub fee_percentage: Option<u8>,
    pub fee_recipient: Option<String>,
}

#[cfg(test)]
mod tests {
    use crate::{
        cosmwasm::cosmos_address_to_target_address, FunctionSignature, Nonce,
        ResourceId, TargetSystem, TypedChainId,
    };

    use super::*;

    const TARGET_CONTRACT_ADDR: &str =
        "juno1hset4pny4h8xm4s4lek57msq7j4zwfqwjf7zxqjt4npxyv0lrgnsp8qy9j";
    const NEW_FEE_RECP_ADDR: &str =
        "juno14hj2tavq8fpesdwxxcu44rty3hh90vhujrvcmstl4zr3txmfvw9skjuwg8";

    #[test]
    fn encode() {
        let target_addr =
            cosmos_address_to_target_address(TARGET_CONTRACT_ADDR);
        let target_system = TargetSystem::ContractAddress(target_addr);
        let target_chain = TypedChainId::Cosmos(4);
        let resource_id = ResourceId::new(target_system, target_chain);
        let function_signature =
            FunctionSignature::new(hex_literal::hex!("00000000"));
        let nonce = Nonce::from(0x0001);
        let header =
            ProposalHeader::new(resource_id, function_signature, nonce);
        let new_fee_recipient_address = NEW_FEE_RECP_ADDR.to_string();
        let proposal =
            FeeRecipientUpdateProposal::new(header, new_fee_recipient_address);
        let bytes = proposal.to_bytes();
        let expected = hex_literal::hex!(
            "000000000000b37383a2ad2de9e68da75f583e7d0ef2eae1184f04000000000400000000000000017b22676f7665726e6f72223a6e756c6c2c2269735f6e61746976655f616c6c6f776564223a6e756c6c2c227772617070696e675f6c696d6974223a6e756c6c2c226665655f70657263656e74616765223a6e756c6c2c226665655f726563697069656e74223a226a756e6f3134686a32746176713866706573647778786375343472747933686839307668756a7276636d73746c347a723374786d66767739736b6a75776738227d"
        );
        assert_eq!(bytes, expected);
    }

    #[test]
    fn decode() {
        let bytes = hex_literal::hex!("000000000000b37383a2ad2de9e68da75f583e7d0ef2eae1184f04000000000400000000000000017b22676f7665726e6f72223a6e756c6c2c2269735f6e61746976655f616c6c6f776564223a6e756c6c2c227772617070696e675f6c696d6974223a6e756c6c2c226665655f70657263656e74616765223a6e756c6c2c226665655f726563697069656e74223a226a756e6f3134686a32746176713866706573647778786375343472747933686839307668756a7276636d73746c347a723374786d66767739736b6a75776738227d");
        let proposal = FeeRecipientUpdateProposal::from(bytes.to_vec());
        let header = proposal.header();
        let resource_id = header.resource_id();
        let target_system = resource_id.target_system();
        let target_chain = resource_id.typed_chain_id();
        let function_signature = header.function_signature();
        let nonce = header.nonce();
        assert_eq!(
            target_system,
            TargetSystem::ContractAddress(cosmos_address_to_target_address(
                TARGET_CONTRACT_ADDR
            ))
        );
        assert_eq!(target_chain, TypedChainId::Cosmos(4));
        assert_eq!(
            function_signature,
            FunctionSignature::new(hex_literal::hex!("00000000"))
        );
        assert_eq!(nonce, Nonce::from(0x0001));
        assert_eq!(
            proposal.fee_recipient_address(),
            NEW_FEE_RECP_ADDR.to_string(),
        );
    }
}