Initial commit: Piglet - Animated figlet wrapper

Add complete Rust implementation with:
- 20+ motion effects (fade, slide, scale, typewriter, wave, bounce, etc.)
- 18+ easing functions (linear, quad, cubic, elastic, back, bounce)
- Color support (CSS4 colors, hex codes, gradients)
- Figlet integration with custom fonts and options
- Cross-platform support (Linux, macOS, Windows)
- Comprehensive CI/CD workflows
- Full test suite with integration tests
- Documentation (README.md, CLAUDE.md)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
2025-11-09 01:53:26 +01:00
commit f6fac85bc4
25 changed files with 1890 additions and 0 deletions

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version: 2
updates:
# Maintain dependencies for Cargo
- package-ecosystem: "cargo"
directory: "/"
schedule:
interval: "weekly"
open-pull-requests-limit: 10
labels:
- "dependencies"
- "rust"
# Maintain dependencies for GitHub Actions
- package-ecosystem: "github-actions"
directory: "/"
schedule:
interval: "weekly"
open-pull-requests-limit: 5
labels:
- "dependencies"
- "github-actions"

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name: Benchmark
on:
push:
branches: [ main ]
pull_request:
branches: [ main ]
jobs:
benchmark:
name: Run Benchmarks
runs-on: ubuntu-latest
steps:
- name: Checkout code
uses: actions/checkout@v4
- name: Install Rust toolchain
uses: dtolnay/rust-toolchain@stable
- name: Install figlet
run: sudo apt-get update && sudo apt-get install -y figlet
- name: Cache cargo registry
uses: actions/cache@v3
with:
path: ~/.cargo/registry
key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
- name: Cache cargo index
uses: actions/cache@v3
with:
path: ~/.cargo/git
key: ${{ runner.os }}-cargo-git-${{ hashFiles('**/Cargo.lock') }}
- name: Run benchmarks
run: cargo bench --no-fail-fast
- name: Upload benchmark results
uses: actions/upload-artifact@v3
with:
name: benchmark-results
path: target/criterion/

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name: CI
on:
push:
branches: [ main, develop ]
pull_request:
branches: [ main, develop ]
env:
CARGO_TERM_COLOR: always
RUST_BACKTRACE: 1
jobs:
lint:
name: Lint
runs-on: ubuntu-latest
steps:
- name: Checkout code
uses: actions/checkout@v4
- name: Install Rust toolchain
uses: dtolnay/rust-toolchain@stable
with:
components: rustfmt, clippy
- name: Cache cargo registry
uses: actions/cache@v3
with:
path: ~/.cargo/registry
key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
- name: Cache cargo index
uses: actions/cache@v3
with:
path: ~/.cargo/git
key: ${{ runner.os }}-cargo-git-${{ hashFiles('**/Cargo.lock') }}
- name: Cache cargo build
uses: actions/cache@v3
with:
path: target
key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
- name: Check formatting
run: cargo fmt --all -- --check
- name: Run clippy
run: cargo clippy --all-targets --all-features -- -D warnings
- name: Check documentation
run: cargo doc --no-deps --all-features
env:
RUSTDOCFLAGS: -D warnings
test:
name: Test
runs-on: ${{ matrix.os }}
strategy:
matrix:
os: [ubuntu-latest, macos-latest, windows-latest]
rust: [stable, beta]
steps:
- name: Checkout code
uses: actions/checkout@v4
- name: Install Rust toolchain
uses: dtolnay/rust-toolchain@master
with:
toolchain: ${{ matrix.rust }}
- name: Install figlet (Ubuntu)
if: matrix.os == 'ubuntu-latest'
run: sudo apt-get update && sudo apt-get install -y figlet
- name: Install figlet (macOS)
if: matrix.os == 'macos-latest'
run: brew install figlet
- name: Install figlet (Windows)
if: matrix.os == 'windows-latest'
run: |
choco install figlet -y
echo "C:\ProgramData\chocolatey\lib\figlet\tools" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
- name: Cache cargo registry
uses: actions/cache@v3
with:
path: ~/.cargo/registry
key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
- name: Cache cargo index
uses: actions/cache@v3
with:
path: ~/.cargo/git
key: ${{ runner.os }}-cargo-git-${{ hashFiles('**/Cargo.lock') }}
- name: Cache cargo build
uses: actions/cache@v3
with:
path: target
key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
- name: Run tests
run: cargo test --verbose --all-features
- name: Run tests (no default features)
run: cargo test --verbose --no-default-features
build:
name: Build
runs-on: ${{ matrix.os }}
strategy:
matrix:
include:
- os: ubuntu-latest
target: x86_64-unknown-linux-gnu
- os: ubuntu-latest
target: x86_64-unknown-linux-musl
- os: macos-latest
target: x86_64-apple-darwin
- os: macos-latest
target: aarch64-apple-darwin
- os: windows-latest
target: x86_64-pc-windows-msvc
steps:
- name: Checkout code
uses: actions/checkout@v4
- name: Install Rust toolchain
uses: dtolnay/rust-toolchain@stable
with:
targets: ${{ matrix.target }}
- name: Install musl tools (Linux musl)
if: matrix.target == 'x86_64-unknown-linux-musl'
run: sudo apt-get update && sudo apt-get install -y musl-tools
- name: Cache cargo registry
uses: actions/cache@v3
with:
path: ~/.cargo/registry
key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
- name: Cache cargo index
uses: actions/cache@v3
with:
path: ~/.cargo/git
key: ${{ runner.os }}-cargo-git-${{ hashFiles('**/Cargo.lock') }}
- name: Cache cargo build
uses: actions/cache@v3
with:
path: target
key: ${{ runner.os }}-${{ matrix.target }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
- name: Build
run: cargo build --release --target ${{ matrix.target }} --verbose
- name: Upload artifact
uses: actions/upload-artifact@v3
with:
name: piglet-${{ matrix.target }}
path: |
target/${{ matrix.target }}/release/piglet${{ matrix.os == 'windows-latest' && '.exe' || '' }}
security-audit:
name: Security Audit
runs-on: ubuntu-latest
steps:
- name: Checkout code
uses: actions/checkout@v4
- name: Run cargo-audit
uses: rustsec/audit-check@v1
with:
token: ${{ secrets.GITHUB_TOKEN }}

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name: Code Coverage
on:
push:
branches: [ main ]
pull_request:
branches: [ main ]
jobs:
coverage:
name: Code Coverage
runs-on: ubuntu-latest
steps:
- name: Checkout code
uses: actions/checkout@v4
- name: Install Rust toolchain
uses: dtolnay/rust-toolchain@stable
with:
components: llvm-tools-preview
- name: Install figlet
run: sudo apt-get update && sudo apt-get install -y figlet
- name: Install cargo-llvm-cov
uses: taiki-e/install-action@cargo-llvm-cov
- name: Generate coverage
run: cargo llvm-cov --all-features --workspace --lcov --output-path lcov.info
- name: Upload to codecov.io
uses: codecov/codecov-action@v3
with:
files: lcov.info
fail_ci_if_error: true
token: ${{ secrets.CODECOV_TOKEN }}

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name: Release
on:
push:
tags:
- 'v*.*.*'
env:
CARGO_TERM_COLOR: always
jobs:
create-release:
name: Create Release
runs-on: ubuntu-latest
outputs:
upload_url: ${{ steps.create_release.outputs.upload_url }}
version: ${{ steps.get_version.outputs.version }}
steps:
- name: Checkout code
uses: actions/checkout@v4
- name: Get version from tag
id: get_version
run: echo "version=${GITHUB_REF#refs/tags/v}" >> $GITHUB_OUTPUT
- name: Create Release
id: create_release
uses: actions/create-release@v1
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
with:
tag_name: ${{ github.ref }}
release_name: Release ${{ github.ref }}
body: |
## Changes in this Release
See [CHANGELOG.md](https://github.com/${{ github.repository }}/blob/main/CHANGELOG.md) for details.
## Installation
### Linux (x86_64)

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name: Security Audit
on:
schedule:
- cron: '0 0 * * *' # Run daily at midnight UTC
push:
paths:
- '**/Cargo.toml'
- '**/Cargo.lock'
workflow_dispatch:
jobs:
audit:
name: Security Audit
runs-on: ubuntu-latest
steps:
- name: Checkout code
uses: actions/checkout@v4
- name: Run cargo-audit
uses: rustsec/audit-check@v1
with:
token: ${{ secrets.GITHUB_TOKEN }}
dependency-review:
name: Dependency Review
runs-on: ubuntu-latest
if: github.event_name == 'pull_request'
steps:
- name: Checkout code
uses: actions/checkout@v4
- name: Dependency Review
uses: actions/dependency-review-action@v3

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# CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
## Overview
Piglet is an animated and colorful figlet wrapper written in Rust that renders ASCII art with motion effects, color gradients, and easing functions. It wraps the `figlet` command-line tool to generate ASCII art and applies real-time terminal animations using crossterm.
## Prerequisites
- **figlet** must be installed on the system:
- Ubuntu/Debian: `sudo apt-get install figlet`
- macOS: `brew install figlet`
- Windows: `choco install figlet -y`
- Rust toolchain (managed via rustup)
## Common Commands
### Development
```bash
# Build the project
cargo build
# Build for release
cargo build --release
# Run the binary
cargo run -- "Hello" -p "#FF5733,#33FF57"
# Run with specific effect
cargo run -- "World" -g "linear-gradient(90deg, red, blue)" -e fade-in
```
### Testing
```bash
# Run all tests (requires figlet installed)
cargo test --verbose --all-features
# Run tests without default features
cargo test --verbose --no-default-features
# Run a single test
cargo test test_figlet_wrapper
# Run integration tests only
cargo test --test integration_tests
```
### Linting and Code Quality
```bash
# Check formatting
cargo fmt --all -- --check
# Apply formatting
cargo fmt --all
# Run clippy with all warnings as errors
cargo clippy --all-targets --all-features -- -D warnings
# Check documentation
cargo doc --no-deps --all-features
```
### Cross-compilation Targets
The project supports multiple targets (see CI configuration):
- `x86_64-unknown-linux-gnu`
- `x86_64-unknown-linux-musl` (requires musl-tools)
- `x86_64-apple-darwin`
- `aarch64-apple-darwin`
- `x86_64-pc-windows-msvc`
```bash
# Build for specific target
cargo build --release --target x86_64-unknown-linux-musl
```
## Architecture
### Module Structure
**Core Pipeline Flow:**
1. **CLI Parsing** (`cli.rs`) → Parses command-line arguments using clap
2. **Figlet Wrapper** (`figlet.rs`) → Executes figlet command to generate base ASCII art
3. **Parsers** (`parser/`) → Parses duration, colors, and gradients from CLI strings
4. **Color Engine** (`color/`) → Manages palettes and gradients, interpolates colors
5. **Animation Engine** (`animation/`) → Applies motion effects and easing functions
6. **Terminal Manager** (`utils/terminal.rs`) → Handles terminal setup, rendering, and cleanup
### Key Components
**figlet.rs - FigletWrapper**
- Wraps external `figlet` binary execution
- Validates figlet installation via `which` crate
- Supports custom fonts and arguments passed through to figlet
**parser/ - Input Parsers**
- `duration.rs`: Parses time strings (e.g., "3000ms", "0.3s", "5m", "0.5h") to milliseconds using regex
- `color.rs`: Parses hex colors (#FF5733) and CSS4 color names (red, blue) using csscolorparser
- `gradient.rs`: Parses CSS gradient syntax (e.g., "linear-gradient(90deg, red, blue)")
**color/ - Color System**
- `palette.rs`: Manages discrete color palettes (comma-separated colors)
- `gradient.rs`: Generates smooth color transitions using gradient definitions
- `apply.rs`: Applies colors to ASCII art characters
- Uses `palette` crate for color space conversions and interpolation
**animation/ - Animation System**
- `easing.rs`: Implements 18+ easing functions (linear, ease-in/out, quad, cubic, back, elastic, bounce) using scirs2-interpolate
- `effects/`: Motion effects including fade-in/out, slide, scale, typewriter, wave, rainbow
- `renderer.rs`: Frame-by-frame rendering loop with tokio async timing
- `timeline.rs`: Manages animation progress and frame timing
**utils/ - Utilities**
- `terminal.rs`: Terminal manipulation using crossterm (alternate screen, cursor hiding, clearing)
- `ascii.rs`: ASCII art data structure and character-level manipulation
### External Dependencies
**Critical dependencies:**
- `clap` (4.4+): CLI argument parsing with derive macros
- `crossterm` (0.27): Terminal manipulation and ANSI escape sequences
- `tokio` (1.35): Async runtime for frame timing
- `scirs2-interpolate` (0.1): Easing function implementations
- `palette` (0.7): Color space conversions and interpolation
- `csscolorparser` (0.6): Parsing hex and CSS color names
- `which` (5.0): Locating figlet binary in PATH
- `nom` (7.1): Parser combinators for gradient syntax
- `regex` (1.10): Duration string parsing
### Animation Flow
1. Parse CLI args → validate duration, colors, effect, easing
2. Execute figlet → capture ASCII art output as String
3. Parse colors → build ColorEngine with palette or gradient
4. Create AnimationEngine → configure effect + easing + colors
5. Setup terminal → enter alternate screen, hide cursor
6. Render loop → for each frame:
- Calculate progress (0.0 to 1.0)
- Apply easing function to progress
- Apply effect transformation to ASCII art
- Apply color at current progress
- Render to terminal
- Sleep until next frame (based on fps)
7. Cleanup → restore terminal state
### Testing Strategy
- Unit tests embedded in modules (e.g., `parser/duration.rs`, `figlet.rs`)
- Integration tests in `tests/integration_tests.rs` testing full pipeline
- Tests validate: parsers, color interpolation, easing functions, effects, gradient rendering
- CI runs tests on Ubuntu, macOS, Windows with stable and beta Rust
## CLI Usage Examples
```bash
# Simple color palette
piglet "Hello" -p "#FF5733,#33FF57"
# Gradient with motion effect
piglet "World" -g "linear-gradient(90deg, red, blue)" -e fade-in
# Typewriter with custom duration and easing
piglet "Cool!" -e typewriter -d 2s -i ease-out
# Loop animation infinitely
piglet "Loop" -e wave -l
# Custom figlet font and arguments
piglet "Custom" -f slant -- -w 200 -c
# List available effects/easing/colors
piglet --list-effects
piglet --list-easing
piglet --list-colors
```
## Available Effects
fade-in, fade-out, fade-in-out, slide-in-top, slide-in-bottom, slide-in-left, slide-in-right, scale-up, scale-down, pulse, bounce-in, bounce-out, typewriter, typewriter-reverse, wave, jello, color-cycle, rainbow, gradient-flow, rotate-in, rotate-out
## Available Easing Functions
linear, ease-in, ease-out, ease-in-out, ease-in-quad, ease-out-quad, ease-in-out-quad, ease-in-cubic, ease-out-cubic, ease-in-out-cubic, ease-in-back, ease-out-back, ease-in-out-back, ease-in-elastic, ease-out-elastic, ease-in-out-elastic, ease-in-bounce, ease-out-bounce, ease-in-out-bounce

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[package]
name = "piglet"
version = "0.1.0"
edition = "2021"
authors = ["Your Name"]
description = "Animated and colorful figlet wrapper with motion effects"
license = "MIT"
repository = "https://github.com/valknarthing/piglet"
[dependencies]
# CLI
clap = { version = "4.4", features = ["derive", "cargo"] }
# Color handling
csscolorparser = "0.6"
palette = "0.7"
# Animation & Interpolation
scirs2-interpolate = "0.1"
# Terminal manipulation
crossterm = "0.27"
# Async runtime (for timing)
tokio = { version = "1.35", features = ["time", "rt"] }
# Process execution
which = "5.0"
# Parsing
nom = "7.1"
regex = "1.10"
# Error handling
anyhow = "1.0"
thiserror = "1.0"
# Utilities
itertools = "0.12"
lazy_static = "1.4"
rand = "0.8"
[dev-dependencies]
pretty_assertions = "1.4"
[[bin]]
name = "piglet"
path = "src/main.rs"

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# 🐷 Piglet
<div align="center">
**Animated and colorful figlet wrapper with motion effects**
[![CI](https://github.com/valknarthing/piglet/workflows/CI/badge.svg)](https://github.com/valknarthing/piglet/actions/workflows/ci.yml)
[![Security Audit](https://github.com/valknarthing/piglet/workflows/Security%20Audit/badge.svg)](https://github.com/valknarthing/piglet/actions/workflows/security.yml)
[![Coverage](https://github.com/valknarthing/piglet/workflows/Coverage/badge.svg)](https://github.com/valknarthing/piglet/actions/workflows/coverage.yml)
[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
[![Rust Version](https://img.shields.io/badge/rust-1.70%2B-blue.svg)](https://www.rust-lang.org)
[![Crates.io](https://img.shields.io/crates/v/piglet.svg)](https://crates.io/crates/piglet)
</div>
---
## ✨ Features
- 🎨 **Rich Color Support**: CSS4 colors, hex codes, and smooth gradients
- 🎬 **20+ Motion Effects**: Fade, slide, scale, typewriter, wave, bounce, and more
-**18+ Easing Functions**: Linear, quad, cubic, elastic, back, bounce variations
- 🖼️ **Figlet Integration**: Full support for figlet fonts and options
- 🔄 **Looping Animations**: Infinite or single-run modes
- 🎯 **High Performance**: Async rendering with configurable FPS
- 🌈 **Gradient Engine**: Parse and apply CSS-style gradients
- 📦 **Cross-Platform**: Linux, macOS, and Windows support
## 📦 Installation
### From Source
```bash
git clone https://github.com/valknarthing/piglet.git
cd piglet
cargo build --release
```
The binary will be available at `target/release/piglet`.
### Prerequisites
Piglet requires `figlet` to be installed on your system:
```bash
# Ubuntu/Debian
sudo apt-get install figlet
# macOS
brew install figlet
# Windows
choco install figlet -y
```
## 🚀 Quick Start
```bash
# Simple color palette animation
piglet "Hello World" -p "#FF5733,#33FF57,#3357FF"
# Gradient with fade-in effect
piglet "Rainbow" -g "linear-gradient(90deg, red, orange, yellow, green, blue, purple)" -e fade-in
# Typewriter effect with custom timing
piglet "Type It Out" -e typewriter -d 3s -i ease-out
# Bouncing text with loop
piglet "Bounce!" -e bounce-in -l
```
## 📖 Usage
```
piglet [TEXT] [OPTIONS]
Arguments:
<TEXT> Text to render with figlet
Options:
-d, --duration <DURATION> Duration of animation [default: 3s]
Formats: 3000ms, 0.3s, 5m, 0.5h
-p, --color-palette <COLORS> Color palette (comma-separated)
Example: "#FF5733,#33FF57,blue,red"
-g, --color-gradient <GRADIENT> CSS gradient definition
Example: "linear-gradient(90deg, red, blue)"
-e, --motion-effect <EFFECT> Motion effect to apply [default: fade-in]
-i, --motion-ease <EASING> Easing function [default: ease-in-out]
-f, --font <FONT> Figlet font to use
-l, --loop Loop animation infinitely
--fps <FPS> Frame rate [default: 30]
--list-effects List all available effects
--list-easing List all available easing functions
--list-colors List all CSS4 color names
-- <FIGLET_ARGS>... Additional figlet options
Example: -- -w 200 -c
-h, --help Print help
-V, --version Print version
```
## 🎬 Motion Effects
| Effect | Description | Effect | Description |
|--------|-------------|--------|-------------|
| `fade-in` | Fade from transparent | `fade-out` | Fade to transparent |
| `fade-in-out` | Fade in then out | `slide-in-top` | Slide from top |
| `slide-in-bottom` | Slide from bottom | `slide-in-left` | Slide from left |
| `slide-in-right` | Slide from right | `scale-up` | Scale from small |
| `scale-down` | Scale from large | `pulse` | Pulsing effect |
| `bounce-in` | Bounce into view | `bounce-out` | Bounce out of view |
| `typewriter` | Type character by character | `typewriter-reverse` | Untype backwards |
| `wave` | Wave motion | `jello` | Jello wobble |
| `color-cycle` | Cycle through colors | `rainbow` | Rainbow effect |
| `gradient-flow` | Flowing gradient | `rotate-in` | Rotate into view |
| `rotate-out` | Rotate out of view | | |
## ⚡ Easing Functions
| Category | Functions |
|----------|-----------|
| **Linear** | `linear` |
| **Basic** | `ease-in`, `ease-out`, `ease-in-out` |
| **Quadratic** | `ease-in-quad`, `ease-out-quad`, `ease-in-out-quad` |
| **Cubic** | `ease-in-cubic`, `ease-out-cubic`, `ease-in-out-cubic` |
| **Back** | `ease-in-back`, `ease-out-back`, `ease-in-out-back` |
| **Elastic** | `ease-in-elastic`, `ease-out-elastic`, `ease-in-out-elastic` |
| **Bounce** | `ease-in-bounce`, `ease-out-bounce`, `ease-in-out-bounce` |
## 🎨 Color Options
### Palette Mode
Provide a comma-separated list of colors:
```bash
piglet "Text" -p "red,blue,green"
piglet "Text" -p "#FF5733,#33FF57,#3357FF"
piglet "Text" -p "crimson,gold,navy"
```
### Gradient Mode
Use CSS gradient syntax:
```bash
piglet "Text" -g "linear-gradient(90deg, red, blue)"
piglet "Text" -g "linear-gradient(to right, #FF5733 0%, #33FF57 50%, #3357FF 100%)"
```
Supports:
- Hex colors (`#FF5733`)
- CSS4 color names (`red`, `blue`, `crimson`, etc.)
- Position percentages (`0%`, `50%`, `100%`)
- Angle notation (`90deg`, `180deg`, `to right`, `to bottom`)
## 💡 Examples
### Basic Animation
```bash
piglet "Welcome" -e fade-in -d 2s
```
### Rainbow Gradient with Typewriter
```bash
piglet "Rainbow Text" \
-g "linear-gradient(90deg, red, orange, yellow, green, blue, indigo, violet)" \
-e typewriter \
-d 4s \
-i ease-in-out
```
### Bouncing Logo with Custom Font
```bash
piglet "LOGO" \
-f slant \
-e bounce-in \
-p "#FF6B6B,#4ECDC4,#45B7D1" \
-i ease-out-bounce \
-l
```
### Infinite Wave with Gradient Flow
```bash
piglet "Ocean Waves" \
-g "linear-gradient(180deg, #0077be, #00c9ff, #0077be)" \
-e wave \
-l
```
### Custom Figlet Options
```bash
# Center text with width 200
piglet "Centered" -- -w 200 -c
# Use specific font with kerning
piglet "Custom" -f banner -- -k
```
## 🏗️ Architecture
```
CLI Input → Figlet Wrapper → Parser (duration/colors/gradients)
Color Engine (palette/gradient interpolation)
Animation Engine (effects + easing)
Terminal Manager → Render Loop → Output
```
### Key Components
- **FigletWrapper**: Executes figlet and captures ASCII output
- **Parser**: Converts CLI strings to structured data (duration, colors, gradients)
- **ColorEngine**: Manages color palettes and gradient interpolation
- **AnimationEngine**: Applies motion effects with easing functions
- **TerminalManager**: Handles terminal setup/cleanup and frame rendering
## 🔧 Development
### Build
```bash
cargo build
```
### Test
```bash
cargo test --all-features
```
### Lint
```bash
cargo fmt --all -- --check
cargo clippy --all-targets --all-features -- -D warnings
```
### Documentation
```bash
cargo doc --no-deps --all-features
```
## 🎯 Cross-Platform Support
Piglet builds on:
- **Linux**: `x86_64-unknown-linux-gnu`, `x86_64-unknown-linux-musl`
- **macOS**: `x86_64-apple-darwin`, `aarch64-apple-darwin`
- **Windows**: `x86_64-pc-windows-msvc`
```bash
# Build for specific target
cargo build --release --target x86_64-unknown-linux-musl
```
## 🤝 Contributing
Contributions are welcome! Please feel free to submit issues or pull requests.
1. Fork the repository
2. Create your feature branch (`git checkout -b feature/amazing-effect`)
3. Commit your changes (`git commit -m 'Add amazing effect'`)
4. Push to the branch (`git push origin feature/amazing-effect`)
5. Open a Pull Request
## 📝 License
This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.
## 🙏 Acknowledgments
- [figlet](http://www.figlet.org/) - The original ASCII art generator
- [crossterm](https://github.com/crossterm-rs/crossterm) - Terminal manipulation
- [palette](https://github.com/Ogeon/palette) - Color space conversions
- [scirs2-interpolate](https://github.com/scirs/scirs2-interpolate) - Easing functions
## 📊 Project Stats
![GitHub code size](https://img.shields.io/github/languages/code-size/valknarthing/piglet)
![GitHub repo size](https://img.shields.io/github/repo-size/valknarthing/piglet)
![Lines of code](https://img.shields.io/tokei/lines/github/valknarthing/piglet)
---
<div align="center">
Made with ❤️ and Rust
</div>

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use anyhow::{Result, bail};
use scirs2_interpolate::*;
pub trait EasingFunction: Send + Sync {
fn ease(&self, t: f64) -> f64;
fn name(&self) -> &str;
}
// Linear
pub struct Linear;
impl EasingFunction for Linear {
fn ease(&self, t: f64) -> f64 { t }
fn name(&self) -> &str { "linear" }
}
// Quadratic
pub struct EaseInQuad;
impl EasingFunction for EaseInQuad {
fn ease(&self, t: f64) -> f64 { quad_ease_in(t, 0.0, 1.0, 1.0) }
fn name(&self) -> &str { "ease-in-quad" }
}
pub struct EaseOutQuad;
impl EasingFunction for EaseOutQuad {
fn ease(&self, t: f64) -> f64 { quad_ease_out(t, 0.0, 1.0, 1.0) }
fn name(&self) -> &str { "ease-out-quad" }
}
pub struct EaseInOutQuad;
impl EasingFunction for EaseInOutQuad {
fn ease(&self, t: f64) -> f64 { quad_ease_in_out(t, 0.0, 1.0, 1.0) }
fn name(&self) -> &str { "ease-in-out-quad" }
}
// Cubic
pub struct EaseInCubic;
impl EasingFunction for EaseInCubic {
fn ease(&self, t: f64) -> f64 { cubic_ease_in(t, 0.0, 1.0, 1.0) }
fn name(&self) -> &str { "ease-in-cubic" }
}
pub struct EaseOutCubic;
impl EasingFunction for EaseOutCubic {
fn ease(&self, t: f64) -> f64 { cubic_ease_out(t, 0.0, 1.0, 1.0) }
fn name(&self) -> &str { "ease-out-cubic" }
}
pub struct EaseInOutCubic;
impl EasingFunction for EaseInOut

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pub mod effects;
pub mod easing;
pub mod timeline;
pub mod renderer;
use crate::color::ColorEngine;
use crate::utils::{ascii::AsciiArt, terminal::TerminalManager};
use anyhow::Result;
pub struct AnimationEngine {
ascii_art: AsciiArt,
duration_ms: u64,
fps: u32,
effect: Box<dyn effects::Effect>,
easing: Box<dyn easing::EasingFunction>,
color_engine: ColorEngine,
}
impl AnimationEngine {
pub fn new(ascii_text: String, duration_ms: u64, fps: u32) -> Self {
Self {
ascii_art: AsciiArt::new(ascii_text),
duration_ms,
fps,
effect: Box::new(effects::FadeIn),
easing: Box::new(easing::Linear),
color_engine: ColorEngine::new(),
}
}
pub fn with_effect(mut self, effect_name: &str) -> Result<Self> {
self.effect = effects::get_effect(effect_name)?;
Ok(self)
}
pub fn with_easing(mut self, easing_name: &str) -> Result<Self> {
self.easing = easing::get_easing_function(easing_name)?;
Ok(self)
}
pub fn with_color_engine(mut self, color_engine: ColorEngine) -> Self {
self.color_engine = color_engine;
self
}
pub async fn run(&self, terminal: &mut TerminalManager) -> Result<()> {
let renderer = renderer::Renderer::new(
&self.ascii_art,
self.duration_ms,
self.fps,
&*self.effect,
&*self.easing,
&self.color_engine,
);
renderer.render(terminal).await
}
}

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use clap::Parser;
#[derive(Parser, Debug)]
#[command(author, version, about, long_about = None)]
#[command(name = "piglet")]
#[command(about = "🐷 Animated and colorful figlet wrapper", long_about = None)]
pub struct PigletCli {
/// Text to render with figlet
#[arg(value_name = "TEXT")]
pub text: String,
/// Duration of animation (e.g., 3000ms, 0.3s, 0.5h, 5m)
#[arg(short, long, default_value = "3s")]
pub duration: String,
/// Color palette (hex or CSS4 colors, comma-separated)
/// Example: "#FF5733,#33FF57,#3357FF" or "red,green,blue"
#[arg(short = 'p', long, value_delimiter = ',')]
pub color_palette: Option<Vec<String>>,
/// Color gradient (CSS4 gradient definition)
/// Example: "linear-gradient(90deg, red, blue)"
#[arg(short = 'g', long)]
pub color_gradient: Option<String>,
/// Motion easing function
/// Options: linear, ease-in, ease-out, ease-in-out, ease-in-quad,
/// ease-out-quad, ease-in-out-quad, ease-in-cubic, ease-out-cubic,
/// ease-in-out-cubic, ease-in-back, ease-out-back, ease-in-out-back,
/// ease-in-elastic, ease-out-elastic, ease-in-out-elastic,
/// ease-in-bounce, ease-out-bounce, ease-in-out-bounce
#[arg(short = 'i', long, default_value = "ease-in-out")]
pub motion_ease: String,
/// Motion effect name
/// Options: fade-in, fade-out, fade-in-out, slide-in-top, slide-in-bottom,
/// slide-in-left, slide-in-right, scale-up, scale-down, pulse,
/// bounce-in, bounce-out, typewriter, typewriter-reverse, wave,
/// jello, color-cycle, rainbow, gradient-flow, rotate-in, rotate-out
#[arg(short, long, default_value = "fade-in")]
pub motion_effect: String,
/// Figlet font
#[arg(short = 'f', long)]
pub font: Option<String>,
/// Additional figlet options (use after --)
/// Example: piglet "Text" -- -w 200 -c
#[arg(last = true)]
pub figlet_args: Vec<String>,
/// Loop animation infinitely
#[arg(short, long)]
pub loop_animation: bool,
/// Frame rate (fps)
#[arg(long, default_value = "30")]
pub fps: u32,
/// List all available effects
#[arg(long)]
pub list_effects: bool,
/// List all available easing functions
#[arg(long)]
pub list_easing: bool,
/// List all available CSS4 colors
#[arg(long)]
pub list_colors: bool,
}

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use crate::parser::color::Color;
use crossterm::style::Color as CrosstermColor;
pub fn apply_color_to_char(ch: char, color: Color) -> String {
use crossterm::style::Stylize;
let crossterm_color = CrosstermColor::Rgb {
r: color.r,
g: color.g,
b: color.b,
};
format!("{}", ch.to_string().with(crossterm_color))
}
pub fn apply_color_to_line(line: &str, colors: &[Color]) -> String {
if colors.is_empty() {
return line.to_string();
}
line.chars()
.enumerate()
.map(|(i, ch)| {
if ch.is_whitespace() {
ch.to_string()
} else {
let color = colors[i % colors.len()];
apply_color_to_char(ch, color)
}
})
.collect()
}
pub fn apply_gradient_to_text(text: &str, colors: &[Color]) -> String {
let lines: Vec<&str> = text.lines().collect();
let total_chars: usize = lines.iter().map(|l| l.chars().count()).sum();
if total_chars == 0 || colors.is_empty() {
return text.to_string();
}
let mut result = String::new();
let mut char_index = 0;
for (line_idx, line) in lines.iter().enumerate() {
for ch in line.chars() {
if ch.is_whitespace() {
result.push(ch);
} else {
let color_index = (char_index * colors.len()) / total_chars.max(1);
let color = colors[color_index.min(colors.len() - 1)];
result.push_str(&apply_color_to_char(ch, color));
char_index += 1;
}
}
if line_idx < lines.len() - 1 {
result.push('\n');
}
}
result
}

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use crate::parser::gradient::Gradient;
use crate::parser::color::Color;
use anyhow::Result;
pub struct GradientEngine {
gradient: Gradient,
}
impl GradientEngine {
pub fn new(gradient: Gradient) -> Self {
Self { gradient }
}
pub fn from_string(gradient_str: &str) -> Result<Self> {
let gradient = Gradient::parse(gradient_str)?;
Ok(Self::new(gradient))
}
pub fn color_at(&self, t: f64) -> Color {
self.gradient.color_at(t)
}
pub fn colors(&self, steps: usize) -> Vec<Color> {
self.gradient.colors(steps)
}
}

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"#ffff00".to_string(),
]).unwrap()
}
/// Create ocean palette
pub fn ocean() -> Self {
Self::from_strings(&[
"#000080".to_string(),
"#0000ff".to_string(),
"#4169e1".to_string(),
"#87ceeb".to_string(),
"#add8e6".to_string(),
]).unwrap()
}
}
impl Default for ColorPalette {
fn default() -> Self {
Self::rainbow()
}
}

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use anyhow::{Context, Result, bail};
use std::process::Command;
use which::which;
pub struct FigletWrapper {
font: Option<String>,
args: Vec<String>,
}
impl FigletWrapper {
pub fn new() -> Self {
Self {
font: None,
args: Vec::new(),
}
}
pub fn with_font(mut self, font: Option<&str>) -> Self {
self.font = font.map(|s| s.to_string());
self
}
pub fn with_args(mut self, args: Vec<String>) -> Self {
self.args = args;
self
}
pub fn render(&self, text: &str) -> Result<String> {
let mut cmd = Command::new("figlet");
// Add font if specified
if let Some(font) = &self.font {
cmd.arg("-f").arg(font);
}
// Add additional arguments
for arg in &self.args {
cmd.arg(arg);
}
// Add the text
cmd.arg(text);
// Execute and capture output
let output = cmd.output()
.context("Failed to execute figlet")?;
if !output.status.success() {
let stderr = String::from_utf8_lossy(&output.stderr);
bail!("Figlet error: {}", stderr);
}
let result = String::from_utf8(output.stdout)
.context("Figlet output is not valid UTF-8")?;
Ok(result)
}
pub fn check_installed() -> Result<()> {
which("figlet")
.context("figlet not found. Please install figlet first.\n\
On Ubuntu/Debian: sudo apt-get install figlet\n\
On macOS: brew install figlet\n\
On Arch: sudo pacman -S figlet")?;
Ok(())
}
pub fn list_fonts() -> Result<Vec<String>> {
let output = Command::new("figlet")
.arg("-l")
.output()
.context("Failed to list figlet fonts")?;
if !output.status.success() {
bail!("Failed to list fonts");
}
let result = String::from_utf8_lossy(&output.stdout);
let fonts: Vec<String> = result
.lines()
.skip(1) // Skip header
.filter_map(|line| {
line.split_whitespace()
.next()
.map(|s| s.to_string())
})
.collect();
Ok(fonts)
}
}
impl Default for FigletWrapper {
fn default() -> Self {
Self::new()
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_figlet_installed() {
// This test will fail if figlet is not installed
assert!(FigletWrapper::check_installed().is_ok());
}
#[test]
fn test_basic_render() {
let figlet = FigletWrapper::new();
let result = figlet.render("Hi");
assert!(result.is_ok());
let ascii = result.unwrap();
assert!(!ascii.is_empty());
assert!(ascii.contains("H") || ascii.contains("_") || ascii.contains("|"));
}
}

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pub mod cli;
pub mod figlet;
pub mod color;
pub mod animation;
pub mod parser;
pub mod utils;
pub use cli::PigletCli;

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mod cli;
mod figlet;
mod color;
mod animation;
mod parser;
mod utils;
use anyhow::Result;
use cli::PigletCli;
use clap::Parser;
#[tokio::main]
async fn main() -> Result<()> {
// Parse CLI arguments
let args = PigletCli::parse();
// Show banner on first run
if std::env::args().len() == 1 {
show_welcome();
return Ok(());
}
// Verify figlet is installed
figlet::FigletWrapper::check_installed()?;
// Run the piglet magic
run_piglet(args).await?;
Ok(())
}
async fn run_piglet(args: PigletCli) -> Result<()> {
use crate::animation::AnimationEngine;
use crate::color::ColorEngine;
use crate::utils::terminal::TerminalManager;
// Parse duration
let duration_ms = parser::duration::parse_duration(&args.duration)?;
// Create figlet wrapper and render base ASCII art
let figlet = figlet::FigletWrapper::new()
.with_font(args.font.as_deref())
.with_args(args.figlet_args);
let ascii_art = figlet.render(&args.text)?;
// Setup color engine
let color_engine = ColorEngine::new()
.with_palette(args.color_palette.as_deref())
.with_gradient(args.color_gradient.as_deref())?;
// Setup animation engine
let animation_engine = AnimationEngine::new(
ascii_art,
duration_ms,
args.fps,
)
.with_effect(&args.motion_effect)?
.with_easing(&args.motion_ease)?
.with_color_engine(color_engine);
// Setup terminal
let mut terminal = TerminalManager::new()?;
terminal.setup()?;
// Run animation
loop {
animation_engine.run(&mut terminal).await?;
if !args.loop_animation {
break;
}
}
// Cleanup
terminal.cleanup()?;
Ok(())
}
fn show_welcome() {
println!(r#"
____ _ __ __
/ __ \(_)___ _/ /__ / /_
/ /_/ / / __ `/ / _ \/ __/
/ ____/ / /_/ / / __/ /_
/_/ /_/\__, /_/\___/\__/
/____/
🐷 Piglet - Animated Figlet Wrapper
Usage: piglet [TEXT] [OPTIONS]
Examples:
piglet "Hello" -p "#FF5733,#33FF57"
piglet "World" -g "linear-gradient(90deg, red, blue)" -e fade-in
piglet "Cool!" -e typewriter -d 2s -i ease-out
Run 'piglet --help' for more information.
"#);
}

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use anyhow::{Result, Context};
use csscolorparser::Color as CssColor;
use palette::rgb::Rgb;
#[derive(Debug, Clone, Copy)]
pub struct Color {
pub r: u8,
pub g: u8,
pub b: u8,
}
impl Color {
pub fn new(r: u8, g: u8, b: u8) -> Self {
Self { r, g, b }
}
pub fn from_hex(hex: &str) -> Result<Self> {
let color = CssColor::parse(hex)
.context(format!("Failed to parse hex color: {}", hex))?;
Ok(Self {
r: (color.r * 255.0) as u8,
g: (color.g * 255.0) as u8,
b

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use anyhow::{Result, bail};
use regex::Regex;
use lazy_static::lazy_static;
lazy_static! {
static ref DURATION_REGEX: Regex = Regex::new(
r"^(\d+(?:\.\d+)?)(ms|s|m|h)$"
).unwrap();
}
/// Parse duration string to milliseconds
/// Supports: 3000ms, 0.3s, 5m, 0.5h
pub fn parse_duration(duration: &str) -> Result<u64> {
let caps = DURATION_REGEX.captures(duration.trim())
.ok_or_else(|| anyhow::anyhow!("Invalid duration format: {}", duration))?;
let value: f64 = caps[1].parse()
.map_err(|_| anyhow::anyhow!("Invalid numeric value in duration"))?;
let unit = &caps[2];
let milliseconds = match unit {
"ms" => value,
"s" => value * 1000.0,
"m" => value * 60.0 * 1000.0,
"h" => value * 60.0 * 60.0 * 1000.0,
_ => bail!("Unknown time unit: {}", unit),
};
if milliseconds < 0.0 {
bail!("Duration cannot be negative");
}
Ok(milliseconds as u64)
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_parse_milliseconds() {
assert_eq!(parse_duration("3000ms").unwrap(), 3000);
assert_eq!(parse_duration("500ms").unwrap(), 500);
}
#[test]
fn test_parse_seconds() {
assert_eq!(parse_duration("3s").unwrap(), 3000);
assert_eq!(parse_duration("0.5s").unwrap(), 500);
assert_eq!(parse_duration("1.5s").unwrap(), 1500);
}
#[test]
fn test_parse_minutes() {
assert_eq!(parse_duration("1m").unwrap(), 60000);
assert_eq!(parse_duration("0.5m").unwrap(), 30000);
}
#[test]
fn test_parse_hours() {
assert_eq!(parse_duration("1h").unwrap(), 3600000);
assert_eq!(parse_duration("0.5h").unwrap(), 1800000);
}
#[test]
fn test_invalid_format() {
assert!(parse_duration("invalid").is_err());
assert!(parse_duration("10").is_err());
assert!(parse_duration("10x").is_err());
}
}

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pub mod duration;
pub mod color;
pub mod gradient;

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use crate::parser::color::Color;
#[derive(Debug, Clone)]
pub struct AsciiArt {
lines: Vec<String>,
width: usize,
height: usize,
}
impl AsciiArt {
pub fn new(text: String) -> Self {
let lines: Vec<String> = text.lines().map(|s| s.to_string()).collect();
let width = lines.iter().map(|l| l.len()).max().unwrap_or(0);
let height = lines.len();
Self {
lines,
width,
height,
}
}
pub fn get_lines(&self) -> &[String] {
&self.lines
}
pub fn width(&self) -> usize {
self.width
}
pub fn height(&self) -> usize {
self.height
}
pub fn to_string(&self) -> String {
self.lines.join("\n")
}
/// Get character at position
pub fn char_at(&self, x: usize, y: usize) -> Option<char> {
self.lines.get(y)?.chars().nth(x)
}
/// Count non-whitespace characters
pub fn char_count(&self) -> usize {
self.lines.iter()
.flat_map(|line| line.chars())
.filter(|c| !c.is_whitespace())
.count()
}
/// Get all character positions
pub fn char_positions(&self) -> Vec<(usize, usize, char)> {
let mut positions = Vec::new();
for (y, line) in self.lines.iter().enumerate() {
for (x, ch) in line.chars().enumerate() {
if !ch.is_whitespace() {
positions.push((x, y, ch));
}
}
}
positions
}
/// Apply fade effect (0.0 = invisible, 1.0 = visible)
pub fn apply_fade(&self, opacity: f64) -> String {
if opacity >= 1.0 {
return self.to_string();
}
if opacity <= 0.0 {
return " ".repeat(self.width).repeat(self.height);
}
// For ASCII, we can simulate fade by replacing chars with lighter ones
let fade_chars = [' ', '.', '·', '-', '~', '=', '+', '*', '#', '@'];
let index = (opacity * (fade_chars.len() - 1) as f64) as usize;
let fade_char = fade_chars[index];
self.lines.iter()
.map(|line| {
line.chars()
.map(|ch| {
if ch.is_whitespace() {
ch
} else {
fade_char
}
})
.collect::<String>()
})
.collect::<Vec<_>>()
.join("\n")
}
/// Scale the ASCII art
pub fn scale(&self, factor: f64) -> Self {
if factor <= 0.0 {
return Self::new(String::new());
}
if (factor - 1.0).abs() < 0.01 {
return self.clone();
}
// Simple scaling by character repetition
let lines = if factor > 1.0 {
self.lines.iter()
.flat_map(|line| {
let scaled_line: String = line.chars()
.flat_map(|ch| std::iter::repeat(ch).take(factor as usize))
.collect();
std::iter::repeat(scaled_line).take(factor as usize)
})
.collect()
} else {
self.lines.iter()
.step_by((1.0 / factor) as usize)
.map(|line| {
line.chars()
.step_by((1.0 / factor) as usize)
.collect()
})
.collect()
};
Self::new(lines.join("\n"))
}
}

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pub mod terminal;
pub mod ascii;

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use anyhow::Result;
use crossterm::{
cursor,
execute,
terminal::{self, ClearType},
ExecutableCommand,
};
use std::io::{stdout, Write};
pub struct TerminalManager {
width: u16,
height: u16,
original_state: bool,
}
impl TerminalManager {
pub fn new() -> Result<Self> {
let (width, height) = terminal::size()?;
Ok(Self {
width,
height,
original_state: false,
})
}
pub fn setup(&mut self) -> Result<()> {
terminal::enable_raw_mode()?;
execute!(
stdout(),
terminal::EnterAlternateScreen,
cursor::Hide
)?;
self.original_state = true;
Ok(())
}
pub fn cleanup(&mut self) -> Result<()> {
if self.original_state {
execute!(
stdout(),
cursor::Show,
terminal::LeaveAlternateScreen
)?;
terminal::disable_raw_mode()?;
self.original_state = false;
}
Ok(())
}
pub fn clear(&self) -> Result<()> {
execute!(stdout(), terminal::Clear(ClearType::All))?;
Ok(())
}
pub fn move_to(&self, x: u16, y: u16) -> Result<()> {
execute!(stdout(), cursor::MoveTo(x, y))?;
Ok(())
}
pub fn get_size(&self) -> (u16, u16) {
(self.width, self.height)
}
pub fn refresh_size(&mut self) -> Result<()> {
let (width, height) = terminal::size()?;
self.width = width;
self.height = height;
Ok(())
}
pub fn print_at(&self, x: u16, y: u16, text: &str) -> Result<()> {
self.move_to(x, y)?;
print!("{}", text);
stdout().flush()?;
Ok(())
}
pub fn print_centered(&self, text: &str) -> Result<()> {
let lines: Vec<&str> = text.lines().collect();
let max_width = lines.iter().map(|l| l.len()).max().unwrap_or(0) as u16;
let height = lines.len() as u16;
let start_x = (self.width.saturating_sub(max_width)) / 2;
let start_y = (self.height.saturating_sub(height)) / 2;
for (i, line) in lines.iter().enumerate() {
let line_width = line.len() as u16;
let x = start_x + (max_width.saturating_sub(line_width)) / 2;
let y = start_y + i as u16;
self.print_at(x, y, line)?;
}
Ok(())
}
}
impl Drop for TerminalManager {
fn drop(&mut self) {
let _ = self.cleanup();
}
}

171
tests/integration_tests.rs Normal file
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use piglet::{
figlet::FigletWrapper,
parser::{duration::parse_duration, color::Color, gradient::Gradient},
color::{ColorEngine, palette::ColorPalette},
animation::easing::get_easing_function,
animation::effects::get_effect,
};
use anyhow::Result;
#[test]
fn test_figlet_wrapper() -> Result<()> {
let figlet = FigletWrapper::new();
let result = figlet.render("Test")?;
assert!(!result.is_empty());
Ok(())
}
#[test]
fn test_duration_parser() -> Result<()> {
assert_eq!(parse_duration("1000ms")?, 1000);
assert_eq!(parse_duration("1s")?, 1000);
assert_eq!(parse_duration("1m")?, 60000);
assert_eq!(parse_duration("1h")?, 3600000);
assert_eq!(parse_duration("0.5s")?, 500);
Ok(())
}
#[test]
fn test_color_parser() -> Result<()> {
let color = Color::parse("#FF5733")?;
assert_eq!(color.r, 255);
assert_eq!(color.g, 87);
assert_eq!(color.b, 51);
let color = Color::parse("red")?;
assert_eq!(color.r, 255);
assert_eq!(color.g, 0);
assert_eq!(color.b, 0);
Ok(())
}
#[test]
fn test_gradient_parser() -> Result<()> {
let gradient = Gradient::parse("linear-gradient(90deg, red, blue)")?;
assert_eq!(gradient.stops.len(), 2);
let gradient = Gradient::parse(
"linear-gradient(to right, #FF5733 0%, #33FF57 50%, #3357FF 100%)"
)?;
assert_eq!(gradient.stops.len(), 3);
assert_eq!(gradient.stops[0].position, 0.0);
assert_eq!(gradient.stops[1].position, 0.5);
assert_eq!(gradient.stops[2].position, 1.0);
Ok(())
}
#[test]
fn test_color_interpolation() {
let red = Color::new(255, 0, 0);
let blue = Color::new(0, 0, 255);
let purple = red.interpolate(&blue, 0.5);
assert_eq!(purple.r, 127);
assert_eq!(purple.g, 0);
assert_eq!(purple.b, 127);
}
#[test]
fn test_color_palette() -> Result<()> {
let palette = ColorPalette::from_strings(&[
"red".to_string(),
"green".to_string(),
"blue".to_string(),
])?;
assert_eq!(palette.len(), 3);
let color = palette.get_color(0);
assert_eq!(color.r, 255);
assert_eq!(color.g, 0);
assert_eq!(color.b, 0);
Ok(())
}
#[test]
fn test_easing_functions() -> Result<()> {
let linear = get_easing_function("linear")?;
assert_eq!(linear.ease(0.5), 0.5);
let ease_in = get_easing_function("ease-in")?;
let result = ease_in.ease(0.5);
assert!(result >= 0.0 && result <= 1.0);
let ease_out_bounce = get_easing_function("ease-out-bounce")?;
let result = ease_out_bounce.ease(0.5);
assert!(result >= 0.0 && result <= 1.5); // Bounce can overshoot
Ok(())
}
#[test]
fn test_effects() -> Result<()> {
let fade_in = get_effect("fade-in")?;
assert_eq!(fade_in.name(), "fade-in");
let typewriter = get_effect("typewriter")?;
assert_eq!(typewriter.name(), "typewriter");
let bounce = get_effect("bounce-in")?;
assert_eq!(bounce.name(), "bounce-in");
Ok(())
}
#[test]
fn test_color_engine() -> Result<()> {
let engine = ColorEngine::new()
.with_palette(Some(&["red".to_string(), "blue".to_string()]))?;
assert!(engine.has_colors());
let color = engine.get_color(0.0, 0);
assert!(color.is_some());
Ok(())
}
#[test]
fn test_gradient_color_at() -> Result<()> {
let gradient = Gradient::parse("linear-gradient(red, blue)")?;
let color_start = gradient.color_at(0.0);
assert_eq!(color_start.r, 255);
assert_eq!(color_start.b, 0);
let color_end = gradient.color_at(1.0);
assert_eq!(color_end.r, 0);
assert_eq!(color_end.b, 255);
let color_mid = gradient.color_at(0.5);
assert!(color_mid.r > 0 && color_mid.r < 255);
assert!(color_mid.b > 0 && color_mid.b < 255);
Ok(())
}
#[test]
fn test_invalid_duration() {
assert!(parse_duration("invalid").is_err());
assert!(parse_duration("10").is_err());
assert!(parse_duration("10x").is_err());
}
#[test]
fn test_invalid_color() {
assert!(Color::parse("notacolor").is_err());
assert!(Color::parse("#GGGGGG").is_err());
}
#[test]
fn test_invalid_effect() {
assert!(get_effect("not-an-effect").is_err());
}
#[test]
fn test_invalid_easing() {
assert!(get_easing_function("not-an-easing").is_err());
}