//
//  manacost.cpp
//  cards-proof
//
//  Created by Ethan Miller on 3/18/12.
//

#include <iostream>
#include <string>
#include <sstream>

#include "Cost.h"

using namespace std;

map<char,int> cost::default_cost;
bool cost::default_cost_is_set = false;

cost::cost() {
    m_cost_ = default_cost;
//    set_default();
}

cost::cost( string new_mana_cost ) {
    // Takes a manacost in the form NC
	// with N being any number and C being a
    // char that was defined in the default
    // key. Case insensitive.
    cost();
    m_cost_ = read_from_string(new_mana_cost);
}

int cost::get(char key) {
    return m_cost_.find(key)->second;
}

void cost::set_default(istream & in) {
    char temp;
    string line;
    getline(in, line);
    while (line != "enddef" && in) {
        stringstream file_reader(line);
        file_reader >> temp;
        default_cost[tolower(temp)] = 0;
        getline(in, line);
    }
    default_cost_is_set = true;
}

map<char, int> cost::read_from_string( string new_mana_cost ) {
    stringstream input(new_mana_cost);
	char in;
    map<char,int> temp_cost = default_cost;
    
	while ( !input.eof() ) {
		in = tolower(input.peek());
		
		if (isdigit(in)) {
            if (temp_cost.find('n')!=temp_cost.end()) {
                input >> temp_cost['n'];
            } else {
                input.get();
            }
			continue;
			// Continue here skips the input.get at the end of the loop.
			// Since the number was >>'d, we don't want to eat more.
		}
        if (temp_cost.find(in) != temp_cost.end()) {
            temp_cost[in] += 1;
        }
        
        input.get();
	}
    return temp_cost;
}

string cost::to_str() {
    // TODO find a way to set order in game file.
    stringstream cost;
    cost << get('n');
    for ( map<char, int>::const_iterator itr = m_cost_.begin(); itr != m_cost_.end(); ++itr )
        if ( itr->first != 'n' ) {
            for ( int i = 0; i < itr->second; ++i ) {
                cost << char(toupper(itr->first));
                // cast to char b/c otherwise, outputs the int value
            }
        }
    return cost.str();
}