#include <algorithm>

#include "People.h"
#include "util.h"

using namespace std;

People::People(Museum & museum) : museum(museum) {}

People::~People() {
	for (Artist * artist : this->artists) {
		if (artist == nullptr) continue;
		delete artist;
	}
	this->artists.clear();
	this->cleanup();
}

void People::add_artist(const ArtistData & data) {
	if (this->artist_count >= 10000) return;

	this->artists.push_front(new Artist(this->museum, data));
	this->artist_count++;
}

void People::remove_artist(Artist & target) {
	auto it = find(this->artists.begin(), this->artists.end(), &target);
	if (it == this->artists.end()) return;
	this->deleted_artists.push_front(*it);
	*it = nullptr;
	this->artist_count--;
}

forward_list<Artist *> People::get_artists() {
	return this->artists;
}

string People::to_string() {
	string out = "";

	out += stringf("%d artists\n", this->artist_count);
	for (Artist * artist : this->artists) {
		out += stringf("- at (%.2f,%.2f)\n", artist->data.x, artist->data.y);
	}

	return out;
}

void People::cleanup() {
	this->artists.remove(nullptr);
	for (Artist * artist : this->deleted_artists) {
		delete artist;
	}
	this->deleted_artists.clear();
}

void People::update() {
	this->cleanup();
	for (Artist * artist : this->artists) {
		if (artist == nullptr) continue;
		artist->update();
	}
}