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"use strict";
const lua = require('./lua.js');
const lauxlib = require('./lauxlib.js');
const llimit = require('./llimit.js');
const setfield = function(L, key, value) {
lua.lua_pushinteger(L, value);
lua.lua_setfield(L, -2, key);
};
const setallfields = function(L, time) {
setfield(L, "sec", time.getSeconds());
setfield(L, "min", time.getMinutes());
setfield(L, "hour", time.getHours());
setfield(L, "day", time.getDate());
setfield(L, "month", time.getMonth());
setfield(L, "year", time.getYear());
setfield(L, "wday", time.getDay());
let now = new Date();
setfield(L, "yday", Math.floor((now - (new Date(now.getFullYear(), 0, 0))) / (1000 * 60 * 60 * 24)));
// setboolfield(L, "isdst", time.get);
};
const L_MAXDATEFIELD = (llimit.MAX_INT / 2);
const getfield = function(L, key, d, delta) {
let t = lua.lua_getfield(L, -1, lua.to_luastring(key)); /* get field and its type */
let res = lua.lua_tointegerx(L, -1);
if (res !== false) { /* field is not an integer? */
if (t != lua.LUA_TNIL) /* some other value? */
return lauxlib.luaL_error(L, lua.to_luastring(`field '${key}' is not an integer`), true);
else if (d < 0) /* absent field; no default? */
return lauxlib.luaL_error(L, lua.to_luastring(`field '${key}' missing in date table`), true);
res = d;
}
else {
if (!(-L_MAXDATEFIELD <= res && res <= L_MAXDATEFIELD))
return lauxlib.luaL_error(L, lua.to_luastring(`field '${key}' is out-of-bound`), true);
res -= delta;
}
lua.lua_pop(L, 1);
return res;
};
const os_time = function(L) {
let t = new Date();
if (!lua.lua_isnoneornil(L, 1)) /* called with arg */{
lauxlib.luaL_checktype(L, 1, lua.LUA_TTABLE); /* make sure table is at the top */
lua.lua_settop(L, 1);
t.setSeconds(getfield(L, "sec", 0, 0));
t.setSeconds(getfield(L, "min", 0, 0));
t.setSeconds(getfield(L, "hour", 12, 0));
t.setSeconds(getfield(L, "day", -1, 0));
t.setSeconds(getfield(L, "month", -1, 1));
t.setSeconds(getfield(L, "year", -1, 1900));
setallfields(L, t);
}
lua.lua_pushinteger(L, Math.floor(t / 1000));
return 1;
};
const syslib = {
"time": os_time
};
const luaopen_os = function(L) {
lauxlib.luaL_newlib(L, syslib);
return 1;
};
module.exports.luaopen_os = luaopen_os;
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