#include <jo_lowbat.hpp>
#include <iostream>
#include <array>
#include <memory>
#include <algorithm>

using namespace std;

uint8_t
Lowbat::jo_testAcpi(void) {
	if (system("which acpi > /dev/null 2>&1")) {
		cout << "acpi is not installed. Please install it in order to run lowbat" << endl;
		return 1;
	}
	cout << "acpi is installed" << endl;
	return 0;
}

uint8_t
Lowbat::jo_testNotifySend(void) {
	if (system("which notify-send > /dev/null 2>&1")) {
		cout << "notify-send is not installed. Please install it in order to run lowbat" << endl;
		return 1;
	}
	cout << "notify-send is installed" << endl;
	return 0;
}

uint8_t
Lowbat::jo_testEspeak(void) {
	if (system("which espeak > /dev/null 2>&1")) {
		cout << "espeak is not installed. Please install it in order to run --say option" << endl;
		return 1;
	}
	cout << "espeak is installed" << endl;
	return 0;
}

int
Lowbat::jo_fetchBatlvl(void) {
	cout << "Fetching batlvl: ";
	m_batlvl = Lowbat::jo_exec("acpi | awk '{print $4}' | rev | cut -c 3- | rev");
	m_batlvl.erase(remove(m_batlvl.begin(), m_batlvl.end(), '\n'), m_batlvl.end());
	cout << m_batlvl << "%" << endl;
	return stoi(m_batlvl);
}

int
Lowbat::jo_fetchAcstat(void) {
	int	ret;

	cout << "Fetching acstat: ";
	ret = system("acpi | grep -q Discharging");
	if (ret != 0)
		cout << "Charging" << endl;
	else
		cout << "Discharging" << endl;
	return ret;
}

string
Lowbat::jo_exec(const char* cmd) {
    array<char, 128> buffer;
    string result;
    unique_ptr<FILE, decltype(&pclose)> pipe(popen(cmd, "r"), pclose);
    if (!pipe) {
        throw runtime_error("popen() failed!");
    }
    while (fgets(buffer.data(), buffer.size(), pipe.get()) != nullptr) {
        result += buffer.data();
    }
    return result;
}

int
Lowbat::jo_notify(void) {
	string		str;

	str = "notify-send \"Low battery: ";
	str += m_batlvl;
	str += "%\" \"Please plug in computer\" -u critical -t 15000";
	cout << "Notifying" << endl;
	return system(str.c_str());
}

int
Lowbat::jo_speak(void) {
	string		str;

	str = "echo \"";
	str += m_msg;
	str += "\" | espeak";
	cout << "Speaking: " << m_msg << endl;
	return system(str.c_str());
}

void
Lowbat::jo_setMsg(const char *msg) {
	m_msg = msg;
}