116 lines
3.8 KiB
C++
116 lines
3.8 KiB
C++
/*
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* Copyright (c) 2003-2008, John Wiegley. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* - Neither the name of New Artisans LLC nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "reconcile.h"
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namespace ledger {
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#define xact_next(x) reinterpret_cast<xact_t *>(x->xdata().ptr)
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#define xact_next_ptr(x) reinterpret_cast<xact_t **>(&x->xdata().ptr)
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static bool search_for_balance(amount_t& amount,
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xact_t ** prev, xact_t * next)
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{
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for (; next; next = xact_next(next)) {
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xact_t * temp = *prev;
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*prev = next;
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amount -= next->amount;
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if (! amount ||
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search_for_balance(amount, xact_next_ptr(next), xact_next(next)))
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return true;
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amount += next->amount;
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*prev = temp;
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}
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return false;
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}
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void reconcile_xacts::push_to_handler(xact_t * first)
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{
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for (; first; first = xact_next(first))
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item_handler<xact_t>::operator()(*first);
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item_handler<xact_t>::flush();
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}
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void reconcile_xacts::flush()
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{
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value_t cleared_balance;
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value_t pending_balance;
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xact_t * first = NULL;
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xact_t ** last_ptr = &first;
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foreach (xact_t * xact, xacts) {
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if (! is_valid(cutoff) || xact->date() < cutoff) {
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switch (xact->state) {
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case xact_t::CLEARED:
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cleared_balance += xact->amount;
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break;
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case xact_t::UNCLEARED:
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case xact_t::PENDING:
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pending_balance += xact->amount;
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*last_ptr = xact;
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last_ptr = xact_next_ptr(xact);
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break;
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}
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}
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}
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if (cleared_balance.type() >= value_t::BALANCE)
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throw std::runtime_error("Cannot reconcile accounts with multiple commodities");
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cleared_balance.cast(value_t::AMOUNT);
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balance.cast(value_t::AMOUNT);
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commodity_t& cb_comm = cleared_balance.as_amount().commodity();
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commodity_t& b_comm = balance.as_amount().commodity();
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balance -= cleared_balance;
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if (balance.type() >= value_t::BALANCE)
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throw_(std::runtime_error,
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"Reconcile balance is not of the same commodity ('"
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<< b_comm.symbol() << "' != '" << cb_comm.symbol() << "')");
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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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amount_t& to_reconcile(balance.as_amount_lval());
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pending_balance.cast(value_t::AMOUNT);
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if (to_reconcile == pending_balance.as_amount() ||
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search_for_balance(to_reconcile, &first, first)) {
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push_to_handler(first);
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} else {
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throw std::runtime_error("Could not reconcile account!");
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}
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}
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} // namespace ledger
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