#include "i2-icinga.h"

using namespace icinga;

string Service::GetAlias(void) const
{
	string value;

	if (GetConfigObject()->GetProperty("alias", &value))
		return value;

	return GetName();
}

Service Service::GetByName(const string& name)
{
	ConfigObject::Ptr configObject = ConfigObject::GetObject("service", name);

	if (!configObject)
		throw invalid_argument("Service '" + name + "' does not exist.");

	return configObject;
}

Host Service::GetHost(void) const
{
	string hostname;
	if (!GetConfigObject()->GetProperty("host_name", &hostname))
		throw runtime_error("Service object is missing the 'host_name' property.");

	return Host::GetByName(hostname);
}

Dictionary::Ptr Service::GetMacros(void) const
{
	Dictionary::Ptr macros;
	GetConfigObject()->GetProperty("macros", &macros);
	return macros;
}

string Service::GetCheckType(void) const
{
	string value = "nagios";
	GetConfigObject()->GetProperty("check_type", &value);
	return value;
}

string Service::GetCheckCommand(void) const
{
	string value;
	GetConfigObject()->GetProperty("check_command", &value);
	return value;
}

long Service::GetMaxCheckAttempts(void) const
{
	long value = 3;
	GetConfigObject()->GetProperty("max_check_attempts", &value);
	return value;
}

long Service::GetCheckInterval(void) const
{
	long value = 300;
	GetConfigObject()->GetProperty("check_interval", &value);

	if (value < 15)
		value = 15;

	return value;
}

long Service::GetRetryInterval(void) const
{
	long value;
	if (!GetConfigObject()->GetProperty("retry_interval", &value))
		value = GetCheckInterval() / 5;

	return value;
}

Dictionary::Ptr Service::GetDependencies(void) const
{
	Dictionary::Ptr value;
	GetConfigObject()->GetProperty("dependencies", &value);
	return value;
}

void Service::SetNextCheck(time_t nextCheck)
{
	GetConfigObject()->SetTag("next_check", (long)nextCheck);
}

time_t Service::GetNextCheck(void)
{
	long value;
	if (!GetConfigObject()->GetTag("next_check", &value)) {
		value = time(NULL) + rand() % GetCheckInterval();
		SetNextCheck(value);
	}
	return value;
}

void Service::UpdateNextCheck(void)
{
	time_t now;
	time(&now);

	if (GetStateType() == StateTypeSoft)
		SetNextCheck(now + GetRetryInterval());
	else
		SetNextCheck(now + GetCheckInterval());
}

void Service::SetChecker(const string& checker)
{
	GetConfigObject()->SetTag("checker", checker);
}

string Service::GetChecker(void) const
{
	string value;
	GetConfigObject()->GetTag("checker", &value);
	return value;
}

void Service::SetCurrentCheckAttempt(long attempt)
{
	GetConfigObject()->SetTag("check_attempt", attempt);
}

long Service::GetCurrentCheckAttempt(void) const
{
	long value = 1;
	GetConfigObject()->GetTag("check_attempt", &value);
	return value;
}

void Service::SetState(ServiceState state)
{
	GetConfigObject()->SetTag("state", static_cast<long>(state));
}

ServiceState Service::GetState(void) const
{
	long value = StateUnknown;
	GetConfigObject()->GetTag("state", &value);
	return static_cast<ServiceState>(value);
}

void Service::SetStateType(ServiceStateType type)
{
	GetConfigObject()->SetTag("state_type", static_cast<long>(type));
}

ServiceStateType Service::GetStateType(void) const
{
	long value = StateTypeHard;
	GetConfigObject()->GetTag("state_type", &value);
	return static_cast<ServiceStateType>(value);
}

void Service::SetLastCheckResult(const Dictionary::Ptr& result)
{
	GetConfigObject()->SetTag("last_result", result);
}

Dictionary::Ptr Service::GetLastCheckResult(void) const
{
	Dictionary::Ptr value;
	GetConfigObject()->GetTag("last_result", &value);
	return value;
}

void Service::SetLastStateChange(time_t ts)
{
	GetConfigObject()->SetTag("last_state_change", ts);
}

time_t Service::GetLastStateChange(void) const
{
	long value;
	if (!GetConfigObject()->GetTag("last_state_change", &value))
		value = IcingaApplication::GetInstance()->GetStartTime();
	return value;
}

void Service::SetLastHardStateChange(time_t ts)
{
	GetConfigObject()->SetTag("last_hard_state_change", ts);
}

time_t Service::GetLastHardStateChange(void) const
{
	long value;
	if (!GetConfigObject()->GetTag("last_hard_state_change", &value))
		value = IcingaApplication::GetInstance()->GetStartTime();
	return value;
}

void Service::ApplyCheckResult(const CheckResult& cr)
{
	long attempt = GetCurrentCheckAttempt();

	if (cr.GetState() == StateOK) {
		if (GetState() == StateOK)
			SetStateType(StateTypeHard);

		attempt = 1;
	} else {
		if (attempt >= GetMaxCheckAttempts()) {
			SetStateType(StateTypeHard);
			attempt = 1;
		} else if (GetStateType() == StateTypeSoft || GetState() == StateOK) {
			SetStateType(StateTypeSoft);
			attempt++;
		}
	}

	SetCurrentCheckAttempt(attempt);
	SetState(cr.GetState());
}

ServiceState Service::StateFromString(const string& state)
{
	/* TODO: make this thread-safe */
	static map<string, ServiceState> stateLookup;

	if (stateLookup.empty()) {
		stateLookup["ok"] = StateOK;
		stateLookup["warning"] = StateWarning;
		stateLookup["critical"] = StateCritical;
		stateLookup["unreachable"] = StateUnreachable;
		stateLookup["uncheckable"] = StateUncheckable;
		stateLookup["unknown"] = StateUnknown;
	}

	map<string, ServiceState>::iterator it;
	it = stateLookup.find(state);

	if (it == stateLookup.end())
		return StateUnknown;
	else
		return it->second;
}

string Service::StateToString(ServiceState state)
{
	switch (state) {
		case StateOK:
			return "ok";
		case StateWarning:
			return "warning";
		case StateCritical:
			return "critical";
		case StateUnreachable:
			return "unreachable";
		case StateUncheckable:
			return "uncheckable";
		case StateUnknown:
		default:
			return "unknown";
	}
}

ServiceStateType Service::StateTypeFromString(const string& type)
{
	if (type == "soft")
		return StateTypeSoft;
	else
		return StateTypeHard;
}

string Service::StateTypeToString(ServiceStateType type)
{
	if (type == StateTypeSoft)
		return "soft";
	else
		return "hard";
}

bool Service::IsAllowedChecker(const string& checker) const
{
	/* TODO: check config */
	return true;
}