using System;
using System.Text.RegularExpressions;
using HtmlAgilityPack;


public class Address
{
    public string Street { get; set; }
    public string City { get; set; }
    public string State { get; set; }
    public string ZipCode { get; set; }
}

public class Posting
{
    public string Agency { get; set; }
    public string Title { get; set; }
    public string OccupationalCategory { get; set; }
    public string SalaryGrade { get; set; }
    public string BargainingUnit { get; set; }
    public string SalaryRange { get; set; }
    public string EmploymentType { get; set; }
    public string AppointmentType { get; set; }
    public string JurisdictionalClass { get; set; }
    public string TravelPercentage { get; set; }
    public string MinimumQualifications { get; set; }
    public string DutiesDescription { get; set; }
    public string ContactName { get; set; }
    public string ContactEmailAddress { get; set; }
    public Address LocationAddress { get; set; }
    public Address ContactAddress { get; set; }
    public string NotesOnApplying { get; set; }
    public string BoxNumber { get; set; }
    public string VacancyID { get; set; }
    public DateTime DatePosted { get; set; }
    public DateTime DateDue { get; set; }

    public Posting(string id)
    {
        string fullUrl = "https://statejobs.ny.gov/employees/vacancyDetailsPrint.cfm?id=" + id;
        HtmlWeb web = new HtmlWeb();
        var htmlDoc = web.Load(fullUrl);
        // extracting all links
        int i = 0;
        this.LocationAddress = new Address();
        this.ContactAddress = new Address();
        var node = htmlDoc.DocumentNode.SelectSingleNode("//*[@id=\"noNavContent\"]/p");

        Regex r = new Regex(@"\d\d/\d\d/\d\d");
        MatchCollection matches = r.Matches(node.InnerHtml);
        this.DatePosted = DateTime.Parse(matches[0].Value);
        this.DateDue = DateTime.Parse(matches[1].Value);
        foreach (HtmlNode link in htmlDoc.DocumentNode.SelectNodes("//span[@class=\"rightCol\"]"))
        {
            switch (i)
            {
                case 0: this.Agency = link.InnerHtml.Trim(); break;
                case 1: this.Title = link.InnerHtml.Trim(); break;
                case 2: this.OccupationalCategory = link.InnerHtml.Trim(); break;
                case 3: this.SalaryGrade = link.InnerHtml.Trim(); break;
                case 4: this.BargainingUnit = link.InnerHtml.Trim().Replace("&", "&"); break;
                case 5: this.SalaryRange = link.InnerHtml.Trim(); break;
                case 6: this.EmploymentType = link.InnerHtml.Trim(); break;
                case 7: this.AppointmentType = link.InnerHtml.Trim(); break;
                case 8: this.JurisdictionalClass = link.InnerHtml.Trim(); break;
                case 9: this.TravelPercentage = link.InnerHtml.Trim(); break;
                case 19: this.LocationAddress.Street = link.InnerHtml.Trim(); break;
                case 21: this.LocationAddress.City = link.InnerHtml.Trim(); break;
                case 22: this.LocationAddress.State = link.InnerHtml.Trim(); break;
                case 23: this.LocationAddress.ZipCode = link.InnerHtml.Trim(); break;
                case 24: this.MinimumQualifications = link.InnerHtml.Trim(); break;
                case 25: this.DutiesDescription = link.InnerHtml.Trim(); break;
                case 27: this.ContactName = link.InnerHtml.Trim(); break;
                case 30: this.ContactEmailAddress = link.InnerHtml.Trim(); break;
                case 31: this.ContactAddress.Street = link.InnerHtml.Trim(); break;
                case 33: this.ContactAddress.City = link.InnerHtml.Trim(); break;
                case 34: this.ContactAddress.State = link.InnerHtml.Trim(); break;
                case 35: this.ContactAddress.ZipCode = link.InnerHtml.Trim(); break;
                case 36: this.NotesOnApplying = link.InnerHtml.Trim(); break;

                default:
                    break;
            }
            i++;
        }
        try
        {
            Regex boxRegex = new Regex(@"(Box \d+)");
            this.BoxNumber = boxRegex.Matches(this.NotesOnApplying)[0].Value.Replace("Box ", "");
        }
        catch (Exception) { }
        this.VacancyID = id;
    }

    public string GenerateLetter(string s, UserData data, string skills)
    {
        string ret = "" + s;
        ret = ret.Replace("$name", this.ContactName);
        ret = ret.Replace("$vacancy", this.VacancyID);
        ret = ret.Replace("$title", this.Title);
        if (!string.IsNullOrEmpty(this.BoxNumber))
        {
            ret = ret.Replace("$box", this.BoxNumber);
        }
        if (!string.IsNullOrEmpty(data.email))
        {

            ret = ret.Replace("$email", data.email);
        }
        string skillRet = "• " + skills.Replace(",", "• ");
        ret = ret.Replace("$skills", skillRet);

        return ret;
    }
}