using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Dynamic;
using System.Net;
using System.Text.RegularExpressions;
using Umbraco.Core.Logging;
using Umbraco.Forms.Core;
using Umbraco.Forms.Core.Attributes;
using Umbraco.Forms.Core.Enums;

public class PostToUrlAsJson : WorkflowType
{
    [Setting("Url", description = "Enter the url to post to", view = "TextField")]
    public string Url
    {
        get;
        set;
    }

    [Setting("Bearer Token", description = "Optional: enter a bearer token for API access (don't include the word 'Bearer')", view = "TextField")]
    public string BearerToken
    {
        get;
        set;
    }

    public PostToUrlAsJson()
    {             
        this.Id = new Guid("eb5d0597-4964-43c4-9437-407cba35dfc6");
        this.Name = "Send form to URL as JSON object";
        this.Description = "Sends the form to a url";
        this.Icon = "icon-terminal";
        this.Group = "Services";
    }

    public override List<Exception> ValidateSettings()
    {
        List<Exception> list = new List<Exception>();
        if (string.IsNullOrEmpty(Url))
        {
            list.Add(new Exception("'Url' setting has not been set"));
        }
        return list;
    }

    public override WorkflowExecutionStatus Execute(Record record, RecordEventArgs e)
    {
        using (WebClient http = new WebClient())
        {
            http.Headers.Add(HttpRequestHeader.ContentType, "application/json");
            if (!string.IsNullOrEmpty(BearerToken))
            {
                http.Headers.Add(HttpRequestHeader.Authorization, "Bearer " + BearerToken);
                http.Encoding = System.Text.Encoding.UTF8;                
            }

            var values = new Dictionary<string, string>();
            foreach (RecordField value in record.RecordFields.Values)
            {
                values.Add(value.Field.Alias, value.ValuesAsString(true));
            }

            dynamic json = new ExpandoObject();
            json.id = record.UniqueId;
            json.formId = e.Form.Id;
            json.formName = e.Form.Name;
            json.ip = record.IP;
            json.memberKey = record.MemberKey;
            json.time = DateTime.UtcNow;
            json.values = values;
                        
            string payload = JsonConvert.SerializeObject(json);

            try
            {
                http.UploadData(Url, "POST", System.Text.Encoding.UTF8.GetBytes(payload));
                return WorkflowExecutionStatus.Completed;
            }
            catch (Exception ex)
            {
                string err = String.Format("There was a problem sending the Record with unique id '{0}' from the Form '{1}' with id '{2}' to the URL Endpoint '{3}' with the method 'POST'", record.UniqueId, e.Form.Name, e.Form.Id, Url);
                LogHelper.Error<PostToUrlAsJson>(err, ex);
                return WorkflowExecutionStatus.Failed;
            }
        }
    }
}