69 lines
2.1 KiB
C++
69 lines
2.1 KiB
C++
#include "reconcile.h"
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namespace ledger {
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reconcile_results_t reconcile_account(journal_t& journal,
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account_t& account,
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const value_t& balance)
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{
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// This routine attempts to reconcile an account against a given
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// `balance' by marking transactions as "cleared" until the cleared
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// balance matches the expected `balance'.
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//
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// The real difficulty is that sometimes there are transactions in
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// the journal which never make it to the statement (they might be
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// drawing from the wrong account), or there could be transactions
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// which haven't been added yet. In both of these cases the best
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// one can do is guess, and if that fails, to throw up their hands
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// in despair.
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//
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// As such, this algorithm is very likely to fail. The hope is that
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// sometimes it won't fail, and then it can save the user a fair bit
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// of time.
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//
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// If the algorithm succeeds in auto-reconciling the account, then
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// all the relevant data is return in the form of a
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// `reconcile_results_t' structure (see reconcile.h).
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// Compute the current balances for the given account.
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value_t cleared_balance;
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value_t pending_balance;
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reconcile_results_t results;
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transactions_list pending_xacts;
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for (entries_list::iterator e = journal.entries.begin();
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e != journal.entries.end();
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e++)
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for (transactions_list::iterator x = (*e)->transactions.begin();
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x != (*e)->transactions.end();
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x++)
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if ((*x)->account == &account) {
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switch ((*e)->state) {
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case entry_t::CLEARED:
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cleared_balance += (*x)->amount;
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break;
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case entry_t::UNCLEARED:
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case entry_t::PENDING:
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pending_balance += (*x)->amount;
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pending_xacts.push_back(*x);
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break;
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}
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}
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results.previous_balance = cleared_balance;
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value_t to_reconcile = balance - cleared_balance;
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// If the amount to reconcile is the same as the pending balance,
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// then assume an exact match and return the results right away.
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if (to_reconcile == pending_balance) {
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results.remaining_balance = 0L;
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results.pending_xacts = pending_xacts;
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return results;
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}
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throw error("Could not reconcile account");
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}
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} // namespace ledger
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