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
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204

use odra::contract_env::revert;
use odra::types::OdraType;
use odra::{
    contract_env::caller,
    prelude::string::{String, ToString},
    types::{event::OdraEvent, Address, Balance, BlockTime, Bytes, CallArgs},
    Event,
};

use crate::utils::variable_type::VariableType;
use crate::utils::Error::CouldntDeserializeValueToCorrectType;
use crate::voting_contracts::SlashedVotings;
use crate::{
    configuration::ConfigurationBuilder,
    modules::{refs::ContractRefs, AccessControl},
    utils::{consts, ContractCall},
    voting::{
        ballot::{Ballot, Choice},
        types::VotingId,
        voting_engine::{
            events::VotingCreatedInfo,
            voting_state_machine::{VotingStateMachine, VotingSummary, VotingType},
            VotingEngine,
        },
    },
};

/// RepoVoterContract
///
/// It is responsible for managing variables held in [Variable Repo](crate::core_contracts::VariableRepositoryContract).
///
/// Each change to the variable is being voted on, and when the voting passes, a change is made at given time.
#[odra::module(events = [RepoVotingCreated])]
pub struct RepoVoterContract {
    refs: ContractRefs,
    #[odra(using = "refs")]
    voting_engine: VotingEngine,
    access_control: AccessControl,
}

#[odra::module]
impl RepoVoterContract {
    delegate! {
        to self.voting_engine {
            pub fn voting_exists(&self, voting_id: VotingId, voting_type: VotingType) -> bool;
            pub fn get_voting(
            &self,
                voting_id: VotingId,
            ) -> Option<VotingStateMachine>;
            pub fn get_ballot(
                &self,
                voting_id: VotingId,
                voting_type: VotingType,
                address: Address,
            ) -> Option<Ballot>;
            pub fn get_voter(&self, voting_id: VotingId, voting_type: VotingType, at: u32) -> Option<Address>;
            pub fn finish_voting(&mut self, voting_id: VotingId, voting_type: VotingType) -> VotingSummary;
            pub fn cancel_finished_voting(&mut self, voting_id: VotingId);
        }

        to self.access_control {
            pub fn propose_new_owner(&mut self, owner: Address);
            pub fn accept_new_owner(&mut self);
            pub fn add_to_whitelist(&mut self, address: Address);
            pub fn remove_from_whitelist(&mut self, address: Address);
            pub fn is_whitelisted(&self, address: Address) -> bool;
            pub fn get_owner(&self) -> Option<Address>;
        }

        to self.refs {
            pub fn variable_repository_address(&self) -> Address;
            pub fn reputation_token_address(&self) -> Address;
        }
    }

    #[odra(init)]
    pub fn init(
        &mut self,
        variable_repository: Address,
        reputation_token: Address,
        va_token: Address,
    ) {
        self.refs.set_variable_repository(variable_repository);
        self.refs.set_reputation_token(reputation_token);
        self.refs.set_va_token(va_token);
        self.access_control.init(caller());
    }

    pub fn create_voting(
        &mut self,
        variable_repo_to_edit: Address,
        key: String,
        value: Bytes,
        activation_time: Option<u64>,
        stake: Balance,
    ) {
        Self::assert_correct_value_type(&key, &value);

        let voting_configuration = ConfigurationBuilder::new(
            self.refs.va_token().total_supply(),
            &self.refs.variable_repository().all_variables(),
        )
        .contract_call(ContractCall {
            address: variable_repo_to_edit,
            entry_point: consts::EP_UPDATE_AT.to_string(),
            call_args: {
                let mut args = CallArgs::new();
                args.insert(consts::ARG_KEY.to_string(), key.clone());
                args.insert(consts::ARG_VALUE.to_string(), value.clone());
                args.insert(consts::ARG_ACTIVATION_TIME.to_string(), activation_time);
                args
            },
            amount: None,
        })
        .build();

        let (info, _) = self
            .voting_engine
            .create_voting(caller(), stake, voting_configuration);

        RepoVotingCreated::new(variable_repo_to_edit, key, value, activation_time, info).emit();
    }

    pub fn vote(
        &mut self,
        voting_id: VotingId,
        voting_type: VotingType,
        choice: Choice,
        stake: Balance,
    ) {
        self.voting_engine
            .vote(caller(), voting_id, voting_type, choice, stake);
    }

    pub fn slash_voter(&mut self, voter: Address) -> SlashedVotings {
        self.access_control.ensure_whitelisted();
        self.voting_engine.slash_voter(voter)
    }
}

impl RepoVoterContract {
    fn assert_correct_value_type(key: &str, value: &Bytes) {
        let result = match VariableType::from_key(key) {
            VariableType::Balance => Balance::deserialize(value).is_some(),
            VariableType::BlockTime => BlockTime::deserialize(value).is_some(),
            VariableType::Address => Address::deserialize(value).is_some(),
            VariableType::Bool => bool::deserialize(value).is_some(),
            VariableType::Unknown => true,
        };

        if !result {
            revert(CouldntDeserializeValueToCorrectType)
        }
    }
}

/// Event emitted when repo voting has been created.
#[derive(Debug, PartialEq, Eq, Event)]
pub struct RepoVotingCreated {
    variable_repo_to_edit: Address,
    key: String,
    value: Bytes,
    activation_time: Option<u64>,
    creator: Address,
    stake: Option<Balance>,
    voting_id: VotingId,
    config_informal_quorum: u32,
    config_informal_voting_time: u64,
    config_formal_quorum: u32,
    config_formal_voting_time: u64,
    config_total_onboarded: Balance,
    config_double_time_between_votings: bool,
    config_voting_clearness_delta: Balance,
    config_time_between_informal_and_formal_voting: BlockTime,
}

impl RepoVotingCreated {
    pub fn new(
        variable_repo_to_edit: Address,
        key: String,
        value: Bytes,
        activation_time: Option<u64>,
        info: VotingCreatedInfo,
    ) -> Self {
        Self {
            variable_repo_to_edit,
            key,
            value,
            activation_time,
            creator: info.creator,
            stake: info.stake,
            voting_id: info.voting_id,
            config_informal_quorum: info.config_informal_quorum,
            config_informal_voting_time: info.config_informal_voting_time,
            config_formal_quorum: info.config_formal_quorum,
            config_formal_voting_time: info.config_formal_voting_time,
            config_total_onboarded: info.config_total_onboarded,
            config_double_time_between_votings: info.config_double_time_between_votings,
            config_voting_clearness_delta: info.config_voting_clearness_delta,
            config_time_between_informal_and_formal_voting: info
                .config_time_between_informal_and_formal_voting,
        }
    }
}