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package controller;
import model.BasicFood;
import model.Food;
import model.FoodList;
import model.Recipe;
import model.User;
import model.DietLog;
import model.Exercise;
import model.ExerciseList;
import java.io.*;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
public class CSVParser {
private static final String FOODS_PATH = "foods.csv";
private static final String EXERCISES_PATH = "exercises.csv";
private static final String LOG_PATH = "log.csv";
/*
Given the global FoodList, write all of the foods to a CSV file.
The path of the CSV file is specified above by the FOODS_PATH constant.
*/
public void writeFoodList(FoodList foodList) {
File file = new File(FOODS_PATH);
try {
// Check if file exists, create it if not
file.createNewFile();
FileWriter fw = new FileWriter(file);
fw.write("");
// Iterate over food list to write each food
Object[] foodArr = foodList.getFoods().values().toArray();
for (int i = 0; i < foodArr.length; i++) {
Food food = (Food)foodArr[i];
String line = (i > 0 ? "\n" : "") + food.buildCSVFormat();
fw.append(line);
}
fw.close();
}
catch (IOException e) {
e.printStackTrace();
}
}
public void writeExerciseList(ExerciseList exerList) {
File file = new File(EXERCISES_PATH);
try {
// Check if file exists, create it if not
file.createNewFile();
FileWriter fw = new FileWriter(file);
fw.write("");
// Iterate over exercise list to write each exercise
Object[] exerArr = exerList.getAllExercises().values().toArray();
for (int i = 0; i < exerArr.length; i++) {
Exercise exer = (Exercise)exerArr[i];
String line = (i > 0 ? "\n" : "") + exer.buildCSVFormat();
fw.append(line);
}
fw.close();
}
catch (IOException e) {
e.printStackTrace();
}
}
/*
writes the log! more description comes later!
*/
public void writeToLog(User user) {
File file = new File(LOG_PATH);
try {
// Check if file exists, create it if not
file.createNewFile();
FileWriter fw = new FileWriter(file);
fw.write("");
/*
Iterate over user's map of DietLog objects and build
specific csv formatted strings to log to the file
*/
Map<String, DietLog> dietLogs = user.getLogHistory();
for (Map.Entry<String,DietLog> entry : dietLogs.entrySet()) {
DietLog value = entry.getValue();
String[] dateSplit = entry.getKey().split("/");
String dateLine = dateSplit[0] + "," + dateSplit[1] + "," + dateSplit[2] + ",";
Double weightData = value.getDailyWeight();
Double calorieLimit = value.getDailyLimit();
String weightLine = dateLine + "w," + weightData + "\n";
fw.append(weightLine);
String calorieLimitLine = dateLine + "c," + calorieLimit + "\n";
fw.append(calorieLimitLine);
for(Food food : value.getDailyFood()) {
String foodLine = dateLine + "f," + food.getName() + "," + food.getServing() + "\n";
fw.append(foodLine);
}
for(Exercise e: value.getDailyExercise()){
String exerLine = dateLine + "e," + e.getName() + "," + e.getTime() + "\n";
fw.append(exerLine);
}
}
fw.close();
}
catch (IOException e) {
e.printStackTrace();
}
}
public FoodList readFoodCSV() {
ArrayList<String> recipeList = new ArrayList<String>();
ArrayList<String> servingList = new ArrayList<String>();
ArrayList<String> basicLineList = new ArrayList<String>();
ArrayList<String> recipeLineList = new ArrayList<String>();
// need to instantiate food list since this is on startup
FoodList fl = new FoodList();
try {
BufferedReader br = new BufferedReader(new FileReader(FOODS_PATH));
// add foods to the food list for every food that comes back from file
String lineRead = "";
while( ( lineRead = br.readLine() ) != null ) {
String[] lineArr = lineRead.split(",");
if ( lineArr[0].equals("b") ) {
basicLineList.add( lineRead );
} else if ( lineArr[0].equals("r") ) {
recipeLineList.add( lineRead );
}
}
br.close();
for ( int i = 0; i < basicLineList.size(); i++ ) {
String[] basicSeparate = basicLineList.get(i).split(",");
fl.addFood(new BasicFood(basicSeparate[1], Integer.parseInt(basicSeparate[2]), Double.parseDouble(basicSeparate[3]),
Double.parseDouble(basicSeparate[4]), Double.parseDouble(basicSeparate[5])));
}
for ( int i = 0; i < recipeLineList.size(); i++ ) {
String[] recipeSeparate = recipeLineList.get(i).split(",");
for (int k = 2; k <= ( recipeSeparate.length - 2 ); k += 2) {
recipeList.add( recipeSeparate[k] );
servingList.add( recipeSeparate[k + 1] );
}
// Creates a new recipe object
Recipe recipe = new Recipe( recipeSeparate[1] );
// Loops through arrayList and adds each food object as a child
for ( int j = 0; j < recipeList.size(); j++ ) {
recipe.addChild( fl.findFood( recipeList.get(j) ), servingList.get(j) );
}
recipe.addNutritionalInfo();
// Adds the recipe to the list of food
fl.addFood(recipe);
}
}
catch(FileNotFoundException fnfe) {
System.out.println("Information cannot be loaded because food.csv file does not exist.");
}
catch(IOException ioe) {
System.out.println("Error with BufferedReader while reading in food.csv");
}
// test for seeing if reading in from file to FoodList correctly
// for (Map.Entry<String,Food> entry : fl.getFoods().entrySet())
// System.out.println("Key = " + entry.getKey() +
// ", Value = " + entry.getValue());
return fl;
}
public ExerciseList readExerciseCSV() {
ExerciseList el = new ExerciseList();
try {
BufferedReader br = new BufferedReader(new FileReader(EXERCISES_PATH));
String lineRead = "";
while((lineRead = br.readLine()) != null) {
String[] lineArr = lineRead.split(",");
if(lineArr[0].equals("e")) {
el.addExercise(new Exercise(lineArr[1], Double.parseDouble(lineArr[2])));
}
}
br.close();
}
catch(FileNotFoundException fnfe) {
System.out.println("Information cannot be loaded because exercises.csv file does not exist.");
}
catch(IOException ioe) {
System.out.println("Error with BufferedReader while reading in exercises.csv");
}
// test for seeing if reading in from file to FoodList correctly
// for (Map.Entry<String,Food> entry : fl.getFoods().entrySet())
// System.out.println("Key = " + entry.getKey() +
// ", Value = " + entry.getValue());
return el;
}
// read from the reallog.csv file and populate user list of DietLog objects
public Map<String, DietLog> readLogCSV(FoodList fl, ExerciseList el) {
// creating mock map to fill up object to set to user's map
Map<String, DietLog> mockMap = new HashMap<String, DietLog>();
try {
BufferedReader br = new BufferedReader(new FileReader(LOG_PATH));
String lineRead = "";
while((lineRead = br.readLine()) != null) {
String[] lineArr = lineRead.split(",");
String date = lineArr[0] + "/" + lineArr[1] + "/" + lineArr[2];
DietLog dl = mockMap.get(date);
if(dl == null) {
mockMap.put(date, new DietLog());
dl = mockMap.get(date);
}
switch (lineArr[3]) {
case "w":
dl.setDailyWeight(Double.parseDouble(lineArr[4]));
break;
case "c":
dl.setDailyLimit(Double.parseDouble(lineArr[4]));
break;
case "f":
Food food = fl.findFood(lineArr[4]);
if(food != null) { // means that there is this food in the global food list
dl.logFood(food, Double.parseDouble(lineArr[5])); // so then we want to add it to the array of foods in DietLog instanc
}
else { // food is no longer in the list because the user removed it
dl.logFood(new BasicFood(lineArr[4]), Double.parseDouble(lineArr[5]));
}
break;
case "e":
Exercise exer = el.getExercise(lineArr[4]);
if(exer != null){
dl.logExercise(exer, Double.parseDouble(lineArr[5]));
}
else{
dl.logExercise(new Exercise(lineArr[4], Double.parseDouble(lineArr[5])), Double.parseDouble(lineArr[5]));
}
break;
}
/*
* testing to make sure a new instance of DietLog was getting
* created when a new date was found in the csv
*/
// for (Map.Entry<String,DietLog> entry : mockMap.entrySet()) {
// System.out.println(entry.getKey());
// System.out.println(mockMap.size());
// for(Food food : entry.getValue().getDailyFood()) {
// System.out.println(food.getName());
// }
// }
}
br.close();
}
catch(FileNotFoundException fnfe) {
System.out.println("Information cannot be loaded because log.csv file does not exist.");
}
catch(IOException ioe) {
System.out.println("Error with BufferedReader while reading in food.csv");
}
return mockMap;
}
}
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