public with sharing class WeekSixHomework {

    public static void soqlPractice() {

        //1. Below is a SOQL query that should be returning the top 5 Accounts in our org based on Annual Revenue.
        //Something's not quite right, can you fix the query?
        //List<Account> topFiveAccounts = [SELECT Id, Name, AnnualRevenue FROM Account WHERE AnnualRevenue != 0];

        List<Account> topFiveAccounts = [SELECT Name, AnnualRevenue FROM Account WHERE AnnualRevenue != null ORDER BY AnnualRevenue DESC LIMIT 5];

        System.debug('This should be 5: ' + topFiveAccounts.size());
        //debug log shows 5

        //2. Here is a query that is missing something. It compiles, but if you try and run this method in Anonymous
        //you'll get an error when the method tries to use the query results.  Fix it! :)

        //List<Contact> contacts = [SELECT FirstName, MailingState FROM Contact LIMIT 10];

        List<Contact> contacts = [SELECT FirstName, LastName, MailingState FROM Contact LIMIT 10];

        for (Contact c : contacts) {
            String name = c.FirstName + ' ' + c.LastName;
            System.debug('This should be first name & last name: ' + name);
        }


        //3.  Can you write a SOQL query from scratch that will return the top 10 Accounts in the org, ordered by annual
        //revenue in decending order?  Print your results in the debug log.

        List<Account> topTenAccounts = [SELECT Name, AnnualRevenue FROM Account WHERE AnnualRevenue !=Null ORDER BY AnnualRevenue DESC LIMIT 10];
        System.debug('This should be 10: ' + topTenAccounts.size());
        for (Account acct : topTenAccounts) {
            String results = acct.Name + ' ' + acct.AnnualRevenue;
            System.debug('This should be names of 10 accounts: ' + results);
        }

        //4.  Can you write a SOQL query that will return all opportunities for all accounts in the topFiveAccounts list that we used
        //in Number 1?  (topFiveAccounts) Hint:  If you're stuck, look back a the code in WeekSixClassExercises, getOpenOppsForHotAccounts method
        //  Print your results in the debug log.
        List<Opportunity> oppsForTopFiveAccounts = [SELECT Id, Name FROM Opportunity WHERE AccountId in:topFiveAccounts];
        System.debug('Opps for top 5 accounts: ' + oppsForTopFiveAccounts);
    }

    public static void forTheLoveOfForLoops() {

        //1. Take a look at the list and loop below.  It's commented out since it can't run as is.
        // Can you replace the ?? with the number that makes sense based on the comments?
        // Remove the slashes and compile.
        // Can you add an extra counter variable so that you can print out how many times the loop ran in total?


        //This loop should run 5 times
        for (Integer i=0; i<5; i++) {
            System.debug('i is now: '+i);
        }

        //Note: "i" didn't work outside the loop when I tried to set Integer "n = i+1". Couldn't figure out how to combine "n" with what's in the loop

        //2.  Below is a loop that iterates through a list. Can you change it to use the new For Loop syntax? It should print out
        //each account name in the debug log when you're done.
        //Use the list size to tell you how many loops, and use indexing to fetch values.  If you need help, check the
        //loopingThroughLists method in WeekSixClassExercises for hints.

        List<Account> accountList = [SELECT Id, Name FROM Account LIMIT 5];

        for (Account a : accountList) {
            System.debug('Account Name: ' + a.name);
        }
        System.debug('Account List Size: ' + accountList.size());
        //Note: I thought this was the new syntax. Not sure what syntax to use.
    }

}