#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <jsapi.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <stdarg.h>
#include <time.h>
#include <utime.h>
#include <unistd.h>
#include <jsdate.h>
#include "stream.h"
#include "js_util_functions.h"


static JSBool Stream_undefined(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval);
static JSBool Stream_isOpen(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval);
static JSBool Stream_isEnd(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval);
static JSBool Stream_propertyGetter(JSContext *cx, JSObject *obj, jsval id, jsval *vp);

static JSObject *StreamPrototype = NULL;
static JSClass js_Stream_class = {
    "Stream",
    JSCLASS_HAS_PRIVATE,
    JS_PropertyStub,
    JS_PropertyStub,
    JS_PropertyStub,
    JS_PropertyStub,
    JS_EnumerateStub,
    JS_ResolveStub,
    JS_ConvertStub,
    JS_FinalizeStub,
    JSCLASS_NO_OPTIONAL_MEMBERS
};

static JSFunctionSpec Stream_methods[] = {
    {"open", Stream_undefined, 0, 0 ,0},
    {"close", Stream_undefined, 0, 0, 0},
	{"read", Stream_undefined, 0, 0 ,0},
    {"readChar", Stream_undefined, 0, 0, 0},
    {"write", Stream_undefined, 0, 0 ,0},
    {"seek", Stream_undefined, 0, 0 ,0},
    {"getBytesAvailable", Stream_undefined, 0, 0 ,0},
    {"isOpen", Stream_isOpen, 0, 0 ,0},
    {"isEnd", Stream_isEnd, 0, 0 ,0},
	{"getLastError", Stream_undefined, 0, 0, 0},
    {NULL}
};

static JSPropertySpec Stream_static_properties[] = {
	{"SEEK_SET", SEEK_SET, JSPROP_ENUMERATE|JSPROP_READONLY|JSPROP_PERMANENT, Stream_propertyGetter, NULL},
	{"SEEK_CURRENT", SEEK_CUR, JSPROP_ENUMERATE|JSPROP_READONLY|JSPROP_PERMANENT, Stream_propertyGetter, NULL},
	{"SEEK_END", SEEK_END, JSPROP_ENUMERATE|JSPROP_READONLY|JSPROP_PERMANENT, Stream_propertyGetter, NULL},
	{NULL}
};

JSBool register_class_Stream(JSContext *cx){
	JSObject *globalObj = JS_GetGlobalObject(cx);

    /* Define the file object. */
    StreamPrototype = JS_InitClass(cx, globalObj, NULL, &js_Stream_class, Stream_undefined, 0, NULL, Stream_methods, Stream_static_properties, NULL);
    if (!StreamPrototype){
        return JS_FALSE;
    }
	return JS_TRUE;
}

JSObject *Stream_getPrototypeObject(){
	return StreamPrototype;
}


static JSBool Stream_undefined(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval){
	JS_SetPendingException(cx, printf_exception(cx, "Unimplemented."));
	return JS_FALSE;
}

static JSBool Stream_isOpen(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval){
	StreamInformation *info = (StreamInformation*)JS_GetPrivate(cx, obj);
	if (info->handle == -1){
		*rval = BOOLEAN_TO_JSVAL(JS_FALSE);
	}
	else {
		*rval = BOOLEAN_TO_JSVAL(JS_TRUE);
	}
	return JS_TRUE;
}
static JSBool Stream_isEnd(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval){
	StreamInformation *info = (StreamInformation*)JS_GetPrivate(cx, obj);
	*rval = BOOLEAN_TO_JSVAL(info->eofFlag);
	return JS_TRUE;
}

static JSBool Stream_propertyGetter(JSContext *cx, JSObject *obj, jsval id, jsval *vp){
	int thevalues = SEEK_SET;
	thevalues = SEEK_CUR;
	thevalues = SEEK_END;

	switch (JSVAL_TO_INT(id)){
		case SEEK_SET:
			*vp = INT_TO_JSVAL(SEEK_SET);
			break;
		case SEEK_CUR:
			*vp = INT_TO_JSVAL(SEEK_CUR);
			break;
		case SEEK_END:
			*vp = INT_TO_JSVAL(SEEK_END);
			break;
		default:
			return JS_FALSE;
	}
	return JS_TRUE;
}