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use std::io;
use parsers::csv::CsvFile;
use std::collections::HashMap;
pub struct Stock {
name : String,
history_prices : Vec<StockDatum>
}
struct StockDatum {
//date: ,
high: f32,
low: f32,
start: f32,
end: f32
}
impl StockDatum {
fn new(h : f32, l : f32, s : f32, e : f32) -> StockDatum {
StockDatum {
high : h,
low : l,
start : s,
end : e
}
}
}
//struct StockBuilder
/* reads in a stock from a data source */
impl Stock {
fn parse_line(line : Vec<String>, header : &Vec<String>) -> Option<StockDatum> {
let map : HashMap<&String,String> = header.iter().zip(line.into_iter()).collect();
let (mut high, mut low, mut start, mut end);
match map.get(&String::from("high")) {
Some(value) => high = value.parse::<f32>(),
None => {
println!("error with high value");
return None;
}
}
match map.get(&String::from("low")) {
Some(value) => low = value.parse::<f32>(),
None => {
println!("error with high value");
return None;
}
}
match map.get(&String::from("start")) {
Some(value) => start = value.parse::<f32>(),
None => {
println!("error with high value");
return None;
}
}
match map.get(&String::from("end")) {
Some(value) => end = value.parse::<f32>(),
None => {
println!("error with high value");
return None;
}
}
Some(StockDatum {
high: high,
low : low,
start : start,
end: end
})
}
pub fn from_csv(csv_file : CsvFile) -> Result<Stock, io::Error> {
let mut datums = Vec::new();
for line in csv_file.content {
match Stock::parse_line(line, &csv_file.header) {
None => println!("Error parsing"),
Some(datum) => datums.push(datum),
};
}
Ok(Stock {
name : String::from("test"),
history_prices : datums
})
}
}
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