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use std::fmt;
use std::fs::{read_to_string, write};
use std::io::{Error as IoError, Result as IoResult};
use std::path::PathBuf;
use std::str::FromStr;
use wmap_renderer::{Configuration, StageType, render_to_png, render_to_svg};
use thiserror::Error;
#[derive(Debug)]
enum ImageType {
Png,
Svg,
}
impl fmt::Display for ImageType {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
ImageType::Png => write!(f, "png"),
ImageType::Svg => write!(f, "svg"),
}
}
}
#[derive(Error, Debug)]
pub enum WmapError {
#[error("unknown image type.")]
UnknownImageType,
#[error("unknown stage type.")]
UnknownStageType,
}
impl FromStr for ImageType {
type Err = WmapError;
fn from_str(s: &str) -> Result<Self, Self::Err> {
match s.to_lowercase().as_str() {
"png" => Ok(ImageType::Png),
"svg" => Ok(ImageType::Svg),
_ => Err(Self::Err::UnknownImageType),
}
}
}
fn stage_from_str(s: &str) -> Option<StageType> {
match s.to_lowercase().as_str() {
"activities" => Some(StageType::Activities),
"behavior" => Some(StageType::Behavior),
"certainty" => Some(StageType::Certainty),
"comparison" => Some(StageType::Comparison),
"cynefin" => Some(StageType::Cynefin),
"data" => Some(StageType::Data),
"decision_drivers" => Some(StageType::DecisionDrivers),
"efficiency" => Some(StageType::Efficiency),
"failure" => Some(StageType::Failure),
"focus_of_value" => Some(StageType::FocusOfValue),
"knowledge" => Some(StageType::Knowledge),
"knowledge_management" => Some(StageType::KnowledgeManagement),
"market" => Some(StageType::Market),
"market_action" => Some(StageType::MarketAction),
"market_perception" => Some(StageType::MarketPerception),
"perception_in_industry" => Some(StageType::PerceptionInIndustry),
"practice" => Some(StageType::Practice),
"publication_types" => Some(StageType::PublicationTypes),
"ubiquity" => Some(StageType::Ubiquity),
"understanding" => Some(StageType::Understanding),
"user_perception" => Some(StageType::UserPerception),
"evolution_stage" => Some(StageType::EvolutionStage),
_ => None,
}
}
struct Arguments {
input: PathBuf,
output: PathBuf,
stage: StageType,
image_type: ImageType,
}
fn parse_arguments() -> Result<Arguments, lexopt::Error> {
use lexopt::prelude::*;
let mut input = None;
let mut output: String = "".to_string();
let mut stage = StageType::Activities;
let mut image_type = ImageType::Png;
let mut argument_parser = lexopt::Parser::from_env();
while let Some(argument) = argument_parser.next()? {
match argument {
Short('t') | Long("type") => {
image_type = argument_parser.value()?.parse()?;
}
Short('s') | Long("stage") => {
let stage_string: String = argument_parser.value()?.parse()?;
stage = stage_from_str(&stage_string).ok_or("Invalid stage name")?
}
Short('o') | Long("output") => {
output = argument_parser.value()?.parse()?;
}
Value(value) if input.is_none() => {
input = Some(value.string()?);
}
Short('h') | Long("help") => {
println!("Usage: wmap [-t|--type=png|svg] [-o=OUTPUT_FILE] INPUT_FILE");
std::process::exit(0);
}
_ => return Err(argument.unexpected()),
}
}
let input = PathBuf::from(input.ok_or("missing argument INPUT_FILE")?);
let output = match output.is_empty() {
true => input.with_extension(image_type.to_string()),
false => PathBuf::from(output),
};
Ok(Arguments {
input,
output,
stage,
image_type,
})
}
fn main() -> IoResult<()> {
let arguments = parse_arguments().map_err(|_| IoError::other("Unable to parse arguments"))?;
arguments.input.try_exists()?;
let source = read_to_string(arguments.input)?;
let map = wmap_parser::parse(&source);
let configuration = Configuration::default();
let image_data = match arguments.image_type {
ImageType::Png => render_to_png(&map, arguments.stage, &configuration)
.map_err(|_| IoError::other("Unable to render PNG"))?,
ImageType::Svg => render_to_svg(&map, arguments.stage, &configuration)
.map_err(|_| IoError::other("Unable to render SVG"))?
.into_bytes(),
};
write(arguments.output, image_data)?;
Ok(())
}
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