using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using BeWoPlanerMobil.Util.MoKExtensions;
using BS.Shared.DataContracts.ClientPartials;
using BS.Shared.DataContracts.Compact;

namespace BeWoPlanerMobil.Util
{
    public static class HtmlHelperExtensions
    {
        public static bool IsInDebugMode(this HtmlHelper htmlHelper)
        {
            #if DEBUG
                return true;
            #else
                return false;
            #endif
        }

        public static IHtmlString PopupWithSearchForIFilterables<T>(this HtmlHelper htmlHelper, List<T> entities, string itemOnClickMethodName, string itemOnClickParameterString, string selectedItemText, string modalId, bool isButtonPrimaryColor = true, bool hasPrependInputGroupText = true, bool hasPrepend = true, bool hasDeleteSelectionButton = false) where T : IMoKSearchableDC
        {
            if(string.IsNullOrWhiteSpace(modalId))
            {
                modalId = $"{Guid.NewGuid()}-modal-popup";
            }

            var buttonColor = "btn-primary";
            var buttonOutlineColor = "btn-outline-primary";
            var prependText = string.Empty;
            var modalTitleText = "Auswahl";

            if(selectedItemText is null)
            {
                selectedItemText = string.Empty;
            }

            switch(entities.GetType().GetGenericArguments().Single().Name)
            {
                case nameof(CompactCustomerDC):
                    buttonColor = "btn-bewo-customers";
                    buttonOutlineColor = "btn-outline-bewo-customers";
                    prependText = "Klient";
                    modalTitleText = "Klientenauswahl";
                    break;
                case nameof(CompactEmployeeDC):
                    buttonColor = "btn-bewo-employee";
                    buttonOutlineColor = "btn-outline-bewo-employee";
                    prependText = "Mitarbeiter";
                    modalTitleText = "Mitarbeiterauswahl";
                    break;
                case nameof(CompactOrganisationDC):
                    buttonColor = "btn-bewo-organisation";
                    buttonOutlineColor = "btn-outline-bewo-organisation";
                    prependText = "Organisation";
                    modalTitleText = "Organisationsauswahl";
                    break;
                case nameof(CompactTeamDC):
                    buttonColor = "btn-bewo-teams";
                    buttonOutlineColor = "btn-outline-bewo-teams";
                    prependText = "Team";
                    modalTitleText = "Teamauswahl";
                    break;
            }

            if(isButtonPrimaryColor)
            {
                buttonColor = "btn-primary";
            }

            var containerDiv = new TagBuilder("div");

            var modalToggleButton = new TagBuilder("button");
            modalToggleButton.AddCssClass("dropdown-toggle");

            if(hasDeleteSelectionButton)
            {
                modalToggleButton.AddCssClass(hasPrepend ? "entity-popup-open-button" : "btn-group-dropdown-toggle");
            }
            else
            {
                modalToggleButton.AddCssClass("white-space-normal");
                modalToggleButton.AddCssClass("text-truncate");
                modalToggleButton.AddCssClass("w-100");
            }

            modalToggleButton.AddCssClass(buttonColor);
            modalToggleButton.AddCssClass("btn");
            modalToggleButton.MergeAttribute("type", "button");
            modalToggleButton.MergeAttribute("data-toggle", "modal");
            modalToggleButton.MergeAttribute("data-target", $"#{modalId}");
            modalToggleButton.InnerHtml = selectedItemText;

            if(hasPrepend)
            {
                var inputGroup = new TagBuilder("div");
                inputGroup.AddCssClass("input-group");

                var prepend = new TagBuilder("div");
                prepend.AddCssClass("input-group-prepend");

                var inputGroupText = new TagBuilder("span") { InnerHtml = prependText };

                if(hasPrependInputGroupText)
                {
                    inputGroupText.AddCssClass("prepend-input-group-text");
                }

                inputGroupText.AddCssClass("input-group-text");

                var append = new TagBuilder("div");
                append.AddCssClass(hasDeleteSelectionButton ? "cancel-selection-btn-container" : "dropdown-append");
                append.AddCssClass("input-group-append");

                if(hasDeleteSelectionButton)
                {
                    modalToggleButton.AddCssClass("rounded-0");

                    var xButton = new TagBuilder("button");
                    xButton.AddCssClass("w-100");
                    xButton.AddCssClass(buttonOutlineColor);
                    xButton.AddCssClass("btn");
                    xButton.MergeAttribute("type", "button");
                    xButton.MergeAttribute("onclick", $"{itemOnClickMethodName}(this, null, {itemOnClickParameterString})");

                    var xButtonSpan = new TagBuilder("span");
                    xButtonSpan.AddCssClass("fa-times-circle");
                    xButtonSpan.AddCssClass("fas");

                    xButton.AppendInnerHtml(xButtonSpan);

                    append.AppendInnerHtml(xButton);
                }
                else
                {
                    append.AppendInnerHtml(modalToggleButton);
                }

                prepend.AppendInnerHtml(inputGroupText);

                inputGroup.AppendInnerHtml(prepend);

                if(hasDeleteSelectionButton)
                {
                    inputGroup.AppendInnerHtml(modalToggleButton);
                }

                inputGroup.AppendInnerHtml(append);

                containerDiv.AppendInnerHtml(inputGroup);
            }
            else
            {
                if(hasDeleteSelectionButton)
                {
                    var btnGroup = new TagBuilder("div");
                    btnGroup.AddCssClass("w-100");
                    btnGroup.AddCssClass("d-flex");
                    btnGroup.AddCssClass("btn-group");
                    btnGroup.MergeAttribute("role", "group");

                    btnGroup.AppendInnerHtml(modalToggleButton);

                    var cancelSelectionButton = new TagBuilder("button");
                    cancelSelectionButton.AddCssClass("cancel-selection-btn-container");
                    cancelSelectionButton.AddCssClass(buttonOutlineColor);
                    cancelSelectionButton.AddCssClass("btn");
                    cancelSelectionButton.MergeAttribute("type", "button");

                    var cancelSelectionButtonSpan = new TagBuilder("span");
                    cancelSelectionButtonSpan.AddCssClass("fa-times-circle");
                    cancelSelectionButtonSpan.AddCssClass("fas");

                    btnGroup.AppendInnerHtml(cancelSelectionButtonSpan);
                }
                else
                {
                    containerDiv.AppendInnerHtml(modalToggleButton);
                }
            }

            var modalDiv = new TagBuilder("div");
            modalDiv.AddCssClass("modal");
            modalDiv.MergeAttribute("id", modalId);
            modalDiv.MergeAttribute("role", "dialog");
            modalDiv.MergeAttribute("tabindex", "-1");

            var modalDialog = new TagBuilder("div");
            modalDialog.AddCssClass("modal-dialog-scrollable");
            modalDialog.AddCssClass("modal-dialog");
            modalDialog.MergeAttribute("role", "document");

            var modalContent = new TagBuilder("div");
            modalContent.AddCssClass("modal-content");

            var modalHeader = new TagBuilder("div");
            modalHeader.AddCssClass("modal-header");

            var modalTitle = new TagBuilder("h5");
            modalTitle.AddCssClass("font-weight-bold");
            modalTitle.AddCssClass("modal-title");
            modalTitle.InnerHtml = modalTitleText;

            var closeButton = new TagBuilder("button");
            closeButton.AddCssClass("close");
            closeButton.MergeAttribute("type", "button");
            closeButton.MergeAttribute("data-dismiss", "modal");
            closeButton.MergeAttribute("onclick", "resetEntitySearch($(this).parent().siblings('.modal-body').children('.input-group').find('.btn-outline-secondary'))");

            var closeButtonSpan = new TagBuilder("span") { InnerHtml = "&times;" };

            closeButton.InnerHtml = closeButtonSpan.ToString();
            modalHeader.AppendInnerHtml(modalTitle);
            modalHeader.AppendInnerHtml(closeButton);

            modalContent.AppendInnerHtml(modalHeader);

            var modalBody = new TagBuilder("div");
            modalBody.AddCssClass("modal-body");

            var modalInputGroup = new TagBuilder("div");
            modalInputGroup.AddCssClass("input-group");

            var searchInput = new TagBuilder("input");
            searchInput.MergeAttribute("autocomplete", "on");
            searchInput.AddCssClass("form-control");
            searchInput.MergeAttribute("oninput", "onEntitySearchInput(this)");
            searchInput.MergeAttribute("placeholder", "Suchen...");
            searchInput.MergeAttribute("type", "text");

            var modalInputGroupAppend = new TagBuilder("div");
            modalInputGroupAppend.AddCssClass("input-group-append");

            var resetSearchButton = new TagBuilder("button");
            resetSearchButton.AddCssClass("btn-outline-secondary");
            resetSearchButton.AddCssClass("btn");
            resetSearchButton.MergeAttribute("onclick", "resetEntitySearch($(this))");

            var resetSearchButtonSpan = new TagBuilder("span");
            resetSearchButtonSpan.AddCssClass("fa-times-circle");
            resetSearchButtonSpan.AddCssClass("fas");

            resetSearchButton.AppendInnerHtml(resetSearchButtonSpan);
            modalInputGroupAppend.AppendInnerHtml(resetSearchButton);
            modalInputGroup.AppendInnerHtml(searchInput);
            modalInputGroup.AppendInnerHtml(modalInputGroupAppend);

            modalBody.AppendInnerHtml(modalInputGroup);

            var hr = new TagBuilder("hr");

            modalBody.AppendInnerHtml(hr);

            var listGroup = new TagBuilder("list-group");
            listGroup.AddCssClass("list-group");

            foreach(var entity in entities.OrderBy(e => e.ToString()))
            {
                var a = new TagBuilder("a");
                a.AddCssClass("text-body");
                a.AddCssClass("text-truncate");
                a.AddCssClass("cursor-pointer");
                a.AddCssClass("no-underline");
                a.AddCssClass("list-group-item");

                if(false == string.IsNullOrWhiteSpace(itemOnClickMethodName))
                {
                    var parameters = string.IsNullOrWhiteSpace(itemOnClickParameterString) ? string.Empty : $", {itemOnClickParameterString}";

                    a.MergeAttribute("onclick", $"{itemOnClickMethodName}(this, {entity.EntityOid}{parameters});resetEntitySearch($(this).parent().parent().children('.input-group').find('.btn-outline-secondary'));");
                }

                a.MergeAttribute("id", $"{Guid.NewGuid()}_{entity.EntityOid}");
                a.MergeAttribute("href", "#");
                a.InnerHtml = entity.ToString();

                listGroup.AppendInnerHtml(a);
            }

            modalBody.AppendInnerHtml(listGroup);

            modalContent.AppendInnerHtml(modalBody);
            modalDialog.AppendInnerHtml(modalContent);
            modalDiv.AppendInnerHtml(modalDialog);

            containerDiv.AppendInnerHtml(modalDiv);

            return MvcHtmlString.Create(containerDiv.ToString());
        }

        public static string GetCollapsibleClass(this HtmlHelper htmlHelper, Dictionary<string, bool> dictionary, string id)
        {
            if(dictionary is null || false == dictionary.ContainsKey(id))
            {
                return string.Empty;
            }

            return dictionary[id] ? "show" : string.Empty;
        }
    }
}