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#ifndef _LEDGER_H
#define _LEDGER_H
//////////////////////////////////////////////////////////////////////
//
// Ledger Accounting Tool
//
// A command-line tool for general double-entry accounting.
//
// Copyright (c) 2003,2004 John Wiegley <johnw@newartisans.com>
//
#include <map>
#include <list>
#include <string>
#include <ctime>
#include <iostream>
#include "amount.h"
#include "balance.h"
#ifdef RELEASE_LEVEL
#if RELEASE_LEVEL >= 2
#include "debug.h"
#endif
#endif
namespace ledger {
#define TRANSACTION_NORMAL 0x00
#define TRANSACTION_VIRTUAL 0x01
#define TRANSACTION_BALANCE 0x02
#define TRANSACTION_AUTO 0x04
#define TRANSACTION_HANDLED 0x10
#define TRANSACTION_DISPLAYED 0x20
#define TRANSACTION_NO_TOTAL 0x40
class entry_t;
class account_t;
class transaction_t
{
public:
entry_t * entry;
account_t * account;
amount_t amount;
amount_t cost;
unsigned int flags;
std::string note;
mutable balance_pair_t total;
mutable unsigned int index;
mutable unsigned int dflags;
transaction_t(entry_t * _entry, account_t * _account)
: entry(_entry), account(_account), flags(TRANSACTION_NORMAL),
index(0), dflags(0) {}
transaction_t(entry_t * _entry,
account_t * _account,
const amount_t& _amount,
const amount_t& _cost,
unsigned int _flags = TRANSACTION_NORMAL,
const std::string& _note = "")
: entry(_entry), account(_account), amount(_amount),
cost(_cost), flags(_flags), note(_note), index(0), dflags(0) {}
};
typedef std::list<transaction_t *> transactions_list;
class entry_t
{
public:
enum entry_state_t {
UNCLEARED, CLEARED, PENDING
};
std::time_t date;
entry_state_t state;
std::string code;
std::string payee;
transactions_list transactions;
entry_t() : date(-1), state(UNCLEARED) {}
~entry_t() {
for (transactions_list::iterator i = transactions.begin();
i != transactions.end();
i++)
delete *i;
}
void add_transaction(transaction_t * xact) {
transactions.push_back(xact);
}
bool remove_transaction(transaction_t * xact) {
transactions.remove(xact);
return true;
}
};
#define ACCOUNT_DISPLAYED 0x1
typedef std::map<const std::string, account_t *> accounts_map;
typedef std::pair<const std::string, account_t *> accounts_pair;
class account_t
{
public:
typedef unsigned short ident_t;
account_t * parent;
std::string name;
std::string note;
unsigned char depth;
accounts_map accounts;
transactions_list transactions;
mutable balance_pair_t value;
mutable balance_pair_t total;
mutable ident_t ident;
mutable unsigned short dflags;
mutable std::string _fullname;
static ident_t next_ident;
account_t(account_t * _parent,
const std::string& _name = "",
const std::string& _note = "")
: parent(_parent), name(_name), note(_note),
depth(parent ? parent->depth + 1 : 0), dflags(0) {}
~account_t();
std::string fullname() const;
void add_account(account_t * acct) {
acct->ident = next_ident++;
accounts.insert(accounts_pair(acct->name, acct));
}
bool remove_account(account_t * acct) {
accounts_map::size_type n = accounts.erase(acct->name);
return n > 0;
}
account_t * find_account(const std::string& name, bool auto_create = true);
operator std::string() const {
return fullname();
}
// These functions should only be called from journal_t::add_entry
// and journal_t::remove_entry; or from the various parsers.
void add_transaction(transaction_t * xact) {
transactions.push_back(xact);
}
bool remove_transaction(transaction_t * xact);
friend class journal_t;
};
inline std::ostream& operator<<(std::ostream& out, const account_t& acct) {
out << acct.fullname();
return out;
}
typedef std::list<entry_t *> entries_list;
typedef std::list<std::string> strings_list;
class journal_t
{
public:
account_t * master;
entries_list entries;
mutable accounts_map accounts_cache;
std::list<std::string> sources;
journal_t() {
master = new account_t(NULL, "");
master->ident = 0;
account_t::next_ident = 1;
}
~journal_t();
void add_account(account_t * acct) {
master->add_account(acct);
}
bool remove_account(account_t * acct) {
return master->remove_account(acct);
}
account_t * find_account(const std::string& name, bool auto_create = true) {
accounts_map::iterator c = accounts_cache.find(name);
if (c != accounts_cache.end())
return (*c).second;
account_t * account = master->find_account(name, auto_create);
accounts_cache.insert(accounts_pair(name, account));
return account;
}
account_t * find_account(const std::string& name) const {
// With auto_create false, the other `find_account' will not
// change the object.
return const_cast<journal_t *>(this)->find_account(name, false);
}
bool add_entry(entry_t * entry);
bool remove_entry(entry_t * entry);
entry_t * derive_entry(strings_list::iterator begin,
strings_list::iterator end) const;
};
int parse_journal_file(const std::string& path, journal_t * journal);
unsigned int parse_textual_journal(std::istream& in,
journal_t * ledger,
account_t * master = NULL);
extern unsigned long binary_magic_number;
unsigned int read_binary_journal(std::istream& in,
journal_t * journal,
account_t * master = NULL);
void write_binary_journal(std::ostream& out,
journal_t * journal,
strings_list * files = NULL);
extern const std::string version;
} // namespace ledger
#endif // _LEDGER_H
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