#include "dirscanner.h"

void playItem::play(){
	if (video.isLoaded()){
		video.play();
		ofLogNotice() << "playing video: "<<filename;
	}
	if (image.isAllocated()){
		ofLogNotice() << "playing still: "<<filename;
	}
	startTime=ofGetElapsedTimef();
}
bool playItem::load(string _filename){
	filename=_filename;
	ofFile file(filename);
	string ext=ofToLower(file.getExtension());
	loaded=0;
	if (ext=="jpg"||ext=="png"){
		if (image.load(filename)){
			ofLogNotice() << "loaded image: "<<filename;
			loaded=1;
		}
	}
	if (ext=="mp4"||ext=="mov"){
		if (video.load(filename)){
			ofLogNotice() << "loaded clip: "<<filename;
			loaded=2;
		}
	}
	return loaded>0;
}
void playItem::draw(){
	if (image.isAllocated()){

		//ofEnableAlphaBlending();  
		//ofSetColor(255,255,255,1.0);
		image.draw(0,0);
		//ofDisableAlphaBlending();  

		if (ofGetElapsedTimef()-startTime>5.0){
			isFinished=true;
		}
	}
	if (video.isLoaded()){
		video.draw(0,0);
		if (video.getIsMovieDone()){
			isFinished=true;
		}
	}
}

void dirScanner::scan(){
	/*
	parse directories and create structure
	showing which folder to check at which time
	*/
	slots.clear();

	ofDirectory dir(rootdir);

	dir.allowExt(""); //get directories
	
	dir.listDir();
	for(int i = 0; i < dir.size(); i++){
		string d=dir.getName(i);
		int start = ofToInt(d.substr(0,4));
		int end = ofToInt(d.substr(5,4));

		if (end){
			slots.push_back(timeSlot(dir.getPath(i),start,end));
			ofLogNotice() << "directory "<<i<<": "<<start<<" - "<<end<<" "<<dir.getPath(i);

		}
	}
}

int dirScanner::getSlotForTime(){
	/*
	read vector of slots
	return index of current time
	naive approach? assuming that the list is valid
	*/
	int railwaytime=(ofGetHours()*100)+ofGetMinutes();

	for(int i = 0; i < slots.size(); i++){
		if (slots[i].start<=railwaytime&&slots[i].end>=railwaytime){
			return i;
		}
	}
	return -1;
}

void dirPlayer::load(std::string path){
	items.clear();
	ofDirectory dir(path);
	dir.allowExt("mp4");
	dir.allowExt("mov");
	dir.allowExt("jpg");
	dir.allowExt("png");
	dir.listDir();
	for(int i = 0; i < dir.size(); i++){
		string d=dir.getPath(i);
		playItem item;
		if (item.load(d)){
			items.push_back(item);
		}
	}
	currentItem=0;
	ofLogNotice() << "found "<<items.size()<<" items";
			
}

void dirPlayer::draw(){
	int slot=scanner->getSlotForTime();
	if (slot!=currentslot){
		if (slot>-1){
			ofLogNotice() << "entering slot "<<slot<<": "<<scanner->slots[slot].path;
			load(scanner->slots[slot].path);
		}
		else {
			ofLogNotice() << "leaving slot";
		}
		currentslot=slot;
	}
	if (items[currentItem].isFinished){
		items[currentItem].isFinished=false;
		currentItem=(currentItem+1)%items.size();
		items[currentItem].play();
	}
	items[currentItem].draw();

}