dmfr-folder-reader 0.0.2

reads folders with dmfr schema
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use arguments;
extern crate serde;
extern crate serde_json;
mod dmfr;
use dmfr::DistributedMobilityFeedRegistry;
use std::error::Error;
use std::fs;
use dmfr::FeedSpec;
static DIR: &str = "./transitland-atlas/feeds/";

fn all() -> Result<(), Box<dyn Error>> {
    println!("onestop,realtime_vehicle_positions,realtime_trip_updates,realtime_alerts,has_auth,auth_type,auth_header,auth_password,fetch_interval,multiauth");
    for entry in fs::read_dir(DIR)? {
        let entry = entry?;
        let path = entry.path();
        if path.is_file() && path.extension().unwrap_or_default() == "json" {
            let json = fs::read_to_string(&path)?;
            let domain: DistributedMobilityFeedRegistry = serde_json::from_str(&json)?;
            for feed in domain.feeds {
                if feed.spec == FeedSpec::GtfsRt {//println!("{:?}", feed.clone());
                    let mut csv_str  = feed.id;
                    match feed.urls.realtime_vehicle_positions {
                        Some(realtime_vehicle_positions) => csv_str.push_str(format!(",{}", realtime_vehicle_positions.to_string()).as_str()),
                        None => csv_str.push_str(","),
                    }
                    match feed.urls.realtime_trip_updates {
                        Some(realtime_trip_updates) => csv_str.push_str(format!(",{}", realtime_trip_updates.to_string()).as_str()),
                        None => csv_str.push_str(","),
                    }
                    match feed.urls.realtime_alerts {
                        Some(realtime_alerts) => csv_str.push_str(format!(",{}", realtime_alerts.to_string()).as_str()),
                        None => csv_str.push_str(","),
                    }
                    if let Some(auth) = feed.authorization.clone() {
                        csv_str.push_str(",true");
                        csv_str.push_str(format!(",{}", auth.type_.to_string()).as_str());
                        if feed.authorization.unwrap().param_name.is_some() {
                            csv_str.push_str(format!(",{}", auth.param_name.unwrap()).as_str());
                        } else {
                            csv_str.push_str(",");
                        }
                        csv_str.push_str(",EXAMPLEKEY");
                    } else {    
                        csv_str.push_str(",false,,,");
                    }
                    csv_str.push_str(",3,");
                    println!("{}", csv_str);
                }
            }
        }
    }
    Ok(())
}

fn noauth() -> Result<(), Box<dyn Error>> {
    println!("onestop,realtime_vehicle_positions,realtime_trip_updates,realtime_alerts,has_auth,auth_type,auth_header,auth_password,fetch_interval,multiauth");
    for entry in fs::read_dir(DIR)? {
        let entry = entry?;
        let path = entry.path();
        if path.is_file() && path.extension().unwrap_or_default() == "json" {
            let json = fs::read_to_string(&path)?;
            let domain: DistributedMobilityFeedRegistry = serde_json::from_str(&json)?;
            for feed in domain.feeds {
                if feed.spec == FeedSpec::GtfsRt && feed.authorization.is_none() {
                    let mut csv_str  = feed.id;
                    match feed.urls.realtime_vehicle_positions {
                        Some(realtime_vehicle_positions) => csv_str.push_str(format!(",{}", realtime_vehicle_positions.to_string()).as_str()),
                        None => csv_str.push_str(","),
                    }
                    match feed.urls.realtime_trip_updates {
                        Some(realtime_trip_updates) => csv_str.push_str(format!(",{}", realtime_trip_updates.to_string()).as_str()),
                        None => csv_str.push_str(","),
                    }
                    match feed.urls.realtime_alerts {
                        Some(realtime_alerts) => csv_str.push_str(format!(",{}", realtime_alerts.to_string()).as_str()),
                        None => csv_str.push_str(","),
                    }
                    csv_str.push_str(",false,,,,1,");
                    println!("{}", csv_str);
                }
            }
        }
    }
    Ok(())
}

fn auth() -> Result<(), Box<dyn Error>> {
    println!("onestop,realtime_vehicle_positions,realtime_trip_updates,realtime_alerts,has_auth,auth_type,auth_header,auth_password,fetch_interval,multiauth");
    for entry in fs::read_dir(DIR)? {
        let entry = entry?;
        let path = entry.path();
        if path.is_file() && path.extension().unwrap_or_default() == "json" {
            let json = fs::read_to_string(&path)?;
            let domain: DistributedMobilityFeedRegistry = serde_json::from_str(&json)?;
            for feed in domain.feeds {
                if feed.spec == FeedSpec::GtfsRt && feed.authorization.is_some() {
                    let mut csv_str = feed.id;
                    match feed.urls.realtime_vehicle_positions {
                        Some(realtime_vehicle_positions) => csv_str.push_str(format!(",{}", realtime_vehicle_positions.to_string()).as_str()),
                        None => csv_str.push_str(","),
                    }
                    match feed.urls.realtime_trip_updates {
                        Some(realtime_trip_updates) => csv_str.push_str(format!(",{}", realtime_trip_updates.to_string()).as_str()),
                        None => csv_str.push_str(","),
                    }
                    match feed.urls.realtime_alerts {
                        Some(realtime_alerts) => csv_str.push_str(format!(",{}", realtime_alerts.to_string()).as_str()),
                        None => csv_str.push_str(","),
                    }
                    csv_str.push_str(",true");
                    csv_str.push_str(format!(",{}", feed.authorization.clone().unwrap().type_.to_string()).as_str());
                    csv_str.push_str(format!(",{}", feed.authorization.unwrap().param_name.unwrap_or_else(|| "".to_string())).as_str());
                    if csv_str.chars().last().unwrap() == ',' {
                        csv_str.push_str("EXAMPLEKEY,3,");
                    } else {
                        csv_str.push_str(",EXAMPLEKEY,3,");
                    }
                    println!("{}", csv_str);
                }
            }
        }
    }
    Ok(())
}

fn main() -> Result<(), Box<dyn Error>> {
    let feed_type = arguments::parse(std::env::args())
        .expect("Add --feeds <string>")
        .get::<String>("feeds").unwrap_or_else(|| "all".to_owned());
    if feed_type == "all" {
        all()
    } else if feed_type == "noauth" {
        noauth()
    } else if feed_type == "auth" {
        auth()
    } else {
        Err(("Must specify feed type: all, noauth, or auth").into())
    }
}