124 lines
3.7 KiB
Rust
124 lines
3.7 KiB
Rust
use colored::{Color, Colorize};
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use ethabi::Address;
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use std::collections::HashMap;
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use std::fmt::{self, Display, Formatter};
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use validator::Validator;
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use voting;
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/// The count of ballots and cast votes, as well as metadata for a particular voter.
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#[derive(Clone, Default)]
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struct VoterStats {
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/// The number of ballots where this voter had a right to vote.
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ballots: usize,
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/// The number of votes cast by this voter.
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voted: usize,
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/// The validator metadata.
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validator: Option<Validator>,
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/// The mining key.
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mining_key: Option<Address>,
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}
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/// A map of vote counts, by voting key.
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#[derive(Clone, Default)]
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pub struct Stats {
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voter_stats: HashMap<Address, VoterStats>,
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}
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impl Stats {
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/// Adds a ballot: `voters` are the voting keys of everyone who was allowed to cast a vote, and
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/// `votes` are the ones that were actually cast.
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pub fn add_ballot(&mut self, voters: &[Address], votes: &[voting::logs::Vote]) {
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for voter in voters {
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let mut vs = self
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.voter_stats
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.entry(voter.clone())
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.or_insert_with(VoterStats::default);
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vs.ballots += 1;
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if votes.iter().any(|vote| vote.voter == *voter) {
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vs.voted += 1;
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}
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}
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}
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/// Inserts metadata about a voter: the mining key and the `Validator` information.
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pub fn set_metadata(
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&mut self,
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voter: &Address,
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mining_key: Address,
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validator: Validator,
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) -> bool {
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match self.voter_stats.get_mut(voter) {
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None => false,
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Some(vs) => {
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vs.validator = Some(validator);
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vs.mining_key = Some(mining_key);
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true
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}
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}
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}
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}
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impl Display for Stats {
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fn fmt(&self, f: &mut Formatter) -> fmt::Result {
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let mut lines: Vec<DisplayLine> = self
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.voter_stats
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.iter()
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.map(|(addr, s)| DisplayLine {
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votes_per_thousand: s.voted * 1000 / s.ballots,
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voted: s.voted,
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ballots: s.ballots,
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voting_address: *addr,
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mining_key: match s.mining_key {
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None => "".to_string(),
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Some(ref key) => format!("{}", key),
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},
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name: match s.validator {
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None => "".to_string(),
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Some(ref v) => format!("{} {}", v.first_name, v.last_name),
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},
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})
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.collect();
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lines.sort();
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let header = " Missed Voting key Mining key Name".bold();
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writeln!(f, "{}", header)?;
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for line in lines {
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line.fmt(f)?;
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}
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Ok(())
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}
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}
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/// A line in the output, corresponding to a particular voter.
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#[derive(Ord, PartialOrd, Eq, PartialEq)]
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struct DisplayLine {
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votes_per_thousand: usize,
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voted: usize,
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ballots: usize,
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voting_address: Address,
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mining_key: String,
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name: String,
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}
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impl Display for DisplayLine {
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fn fmt(&self, f: &mut Formatter) -> fmt::Result {
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let text = format!(
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"{:>7}, {:4.1}% {} {} {}",
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format!("{}/{}", self.ballots - self.voted, self.ballots),
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100.0 - (self.votes_per_thousand as f32) / 10.0,
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self.voting_address,
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self.mining_key,
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self.name
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);
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let c = if self.votes_per_thousand <= 500 {
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Color::BrightRed
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} else if self.votes_per_thousand <= 750 {
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Color::BrightYellow
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} else if self.votes_per_thousand < 1000 {
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Color::White
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} else {
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Color::BrightGreen
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};
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writeln!(f, "{}", text.color(c))
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}
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}
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