use aamos_core::LedgerResult;
use aamos_ledger::{JournalEntry, SourceType};
use std::io::{Read, Write};

pub mod parser;
pub mod exporter;

// ── SIE4 Parser ───────────────────────────────────────────────────────────
pub struct Sie4Parser;

impl Sie4Parser {
    pub fn parse<R: Read>(reader: R) -> LedgerResult<Vec<JournalEntry>> {
        parser::parse_entries(reader)
    }
}

// ── SIE4 Exporter ─────────────────────────────────────────────────────────
pub struct Sie4Exporter;

impl Sie4Exporter {
    pub fn export<W: Write>(
        writer: &mut W,
        entries: &[JournalEntry],
        accounts: &[(String, String)], // (account_number, name)
        fiscal_year: i32,
    ) -> LedgerResult<()> {
        exporter::write_sie4(writer, entries, accounts, fiscal_year)
    }
}

// ── SIE4-serie ────────────────────────────────────────────────────────────
pub fn source_type_to_series(source_type: SourceType) -> char {
    match source_type {
        SourceType::Bank => 'B',
        SourceType::ImportSie => 'S',
        _ => 'A',
    }
}