use std::error::Error;
use std::io;
use std::process;
//use chrono::prelude::*;
use serde::Deserialize;
// By default, struct field names are deserialized based on the position of
// a corresponding field in the CSV data's header record.
#[derive(Debug, Deserialize)]
#[serde(rename_all = "PascalCase")]
struct IcaTransaction {
    datum: String,
    text: String,
    typ: String,
    budgetgrupp: String,
    belopp: String,
    saldo: Option<String>,
}
// By default, struct field names are deserialized based on the position of
// a corresponding field in the CSV data's header record.
#[derive(Debug, Deserialize)]
#[serde(rename_all = "PascalCase")]
struct GCTransaction {
    date: String,
    transaction_id: String,
    number: String,
    description: Option<String>,
    notes: Option<String>,
    commodity_currency: Option<String>,
    void_reason: Option<String>,
    action: Option<String>,
    memo: Option<String>,
    full_account_name: Option<String>,
    account_name: Option<String>,
    amount_with_sym: Option<String>,
    amount_num: Option<String>,
    reconcile: Option<String>,
    reconcile_date: Option<String>,
    rate_price: Option<String>,
}
fn example() -> Result<(), Box<dyn Error>> {
    let mut rdr = csv::ReaderBuilder::new()
        .has_headers(true)
        .delimiter(b';')
        .from_path("konto.csv")?;
    let mut wtr = csv::Writer::from_writer(io::stdout());
    //let mut wtr = csv::WriterBuilder::from_writer(&self, wtr)
    // Write headers manually.
    wtr.write_record(&[
        "Date",
        "Transaction ID",
        "Number",
        "Description",
        "Notes",
        "Commodity/Currency",
        "Void Reason",
        "Action",
        "Memo",
        "Full Account Name",
        "Account Name",
        "Amount With Sym.",
        "Amount Num",
        "Reconcile",
        "Reconcile Date",
        "Rate/Price",
    ])?;
    for result in rdr.deserialize() {
        // Notice that we need to provide a type hint for automatic
        // deserialization.
        let record: IcaTransaction = result?;
        println!("{:?}", record);
    }
    Ok(())
}
fn main() {
    if let Err(err) = example() {
        println!("error running example: {}", err);
        process::exit(1);
    }
}