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Merged
Gridness merged 2 commits into from
Mar 16, 2025
Merged

Mvp #1

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5271af1
Initial setup of project structure and files.
Gridness Mar 16, 2025
03c06e5
Enhance trip cost calculator with colored output and detailed discoun…
Gridness Mar 16, 2025
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50 changes: 50 additions & 0 deletions .github/workflows/rust.yml
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name: Rust CI

on:
push:
branches: [ main ]
pull_request:
branches: [ main ]

env:
CARGO_TERM_COLOR: always

jobs:
build:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- name: Install Rust
uses: dtolnay/rust-toolchain@stable
- name: Build
run: cargo build --verbose
- name: Run tests
run: cargo test --verbose

lint:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- name: Install Rust
uses: dtolnay/rust-toolchain@stable
with:
components: clippy, rustfmt
- name: Check formatting
run: cargo fmt -- --check
- name: Run clippy
run: cargo clippy -- -D warnings

sast:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- name: Install Rust
uses: dtolnay/rust-toolchain@stable
- name: Install cargo-audit
run: cargo install cargo-audit
- name: Run cargo-audit
run: cargo audit
- name: Install cargo-deny
run: cargo install cargo-deny
- name: Run cargo-deny
run: cargo deny check
1 change: 1 addition & 0 deletions .gitignore
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/target
92 changes: 92 additions & 0 deletions Cargo.lock
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7 changes: 7 additions & 0 deletions Cargo.toml
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[package]
name = "rustroika"
version = "1.0.0"
edition = "2024"

[dependencies]
colored = "3.0.0"
80 changes: 80 additions & 0 deletions src/main.rs
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use colored::*;

fn main() {
let args: Vec<String> = std::env::args().collect();

if args.len() != 4 {
eprintln!(
"{}",
format!(
"Usage: {} <trips/week> <monthly_cost> <ticket_price>",
args[0]
)
.red()
);
std::process::exit(1);
}

let trips_per_week: u32 = args[1].parse().expect("Invalid trips per week");
let monthly_cost: u32 = args[2].parse().expect("Invalid monthly cost");
let ticket_price: u32 = args[3].parse().expect("Invalid ticket price");

let total_trips = trips_per_week * 4;
let full_price_count = (total_trips + 1) / 2;
let discounted_count = total_trips / 2;

let individual_cost = full_price_count * ticket_price + discounted_count * (ticket_price / 2);

println!(
"\n╭{}╴{}╴{}╴{}╴╮",
"─".repeat(14),
"─".repeat(10),
"─".repeat(14),
"─".repeat(17)
);
println!(
"│ {:14} │ {:10} │ {:14} │ {:10} │",
"Total trips".cyan().bold(),
"Monthly".cyan().bold(),
"Individual".cyan().bold(),
"Ticket".cyan().bold()
);
println!(
"│ {:14} │ {:>10} │ {:>14} │ {:>10} │",
format!("{}", total_trips).yellow(),
format!("{} RUB", monthly_cost).yellow(),
format!("{} RUB", individual_cost).yellow(),
format!("{} RUB", ticket_price).yellow()
);
println!(
"╰{}╴{}╴{}╴{}╯",
"─".repeat(14),
"─".repeat(10),
"─".repeat(14),
"─".repeat(18)
);

let message = match individual_cost.cmp(&monthly_cost) {
std::cmp::Ordering::Less => format!(
"🚌 Paying per trip is cheaper by {} RUB!",
monthly_cost - individual_cost
)
.green()
.bold(),
std::cmp::Ordering::Greater => format!(
"💰 Monthly pass saves you {} RUB!",
individual_cost - monthly_cost
)
.bright_green()
.bold(),
std::cmp::Ordering::Equal => "⚖️ Both options cost the same".blue().bold(),
};

println!("\n{}\n", message);

// Add explanation of discount logic
println!("{}", "Note:".bold().underline());
println!("• Subsequent trips within 90 minutes get 50% discount");
println!("• Discounted prices are rounded down (e.g., 63 → 31)");
println!("• Calculation assumes optimal discount usage");
}
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