using System.Collections.Generic;
using System.Linq;

namespace Sozsoft.Platform.Editors;

/// <summary>
/// ListForm alanlarinin DevExtreme editor options JSON'unu uretir.
///
/// Buradaki metotlar hazir bir baslangic dondurur; uzerine
/// <see cref="EditorOptionsBuilder"/> metotlariyla ekleme yapilabilir ve sonuc
/// string'e ortuk donustugu icin dogrudan atanabilir:
///
/// <code>
/// EditorOptions = EditorOptions.ShowClearButton(),
/// EditorOptions = EditorOptions.Number(4).ShowClearButton(),
/// EditorOptions = EditorOptions.Multiline(60).Placeholder("Aciklama"),
/// EditorOptions = EditorOptions.New().Flag("acceptCustomValue", true),
/// </code>
/// </summary>
public static class EditorOptions
{
    /// <summary>Bos baslangic; secenekler elle eklenir.</summary>
    public static EditorOptionsBuilder New() => new EditorOptionsBuilder();

    /// <summary>Alan pasif: kullanici degistiremez.</summary>
    public static EditorOptionsBuilder Disabled() => New().Disabled();

    /// <summary>Alan salt okunur: deger gorunur ve gonderilir, degistirilemez.</summary>
    public static EditorOptionsBuilder ReadOnly() => New().ReadOnly();

    /// <summary>Temizleme (x) dugmesi.</summary>
    public static EditorOptionsBuilder ShowClearButton() => New().ShowClearButton();

    /// <summary>Cok satirli metin alani icin yukseklik.</summary>
    public static EditorOptionsBuilder Multiline(int height) => New().Height(height);

    /// <summary>Sabit ondalikli sayi: bicim, maske davranisi ve artir/azalt dugmeleri.</summary>
    public static EditorOptionsBuilder Number(int precision = 2)
        => New().FixedPointFormat(precision).UseMaskBehavior().ShowSpinButtons();

    /// <summary>Yuzde alani.</summary>
    public static EditorOptionsBuilder Percent()
        => New().Format("#0.##'%'").UseMaskBehavior().ShowSpinButtons();

    /// <summary>Tarih alani (gun/ay/yil).</summary>
    public static EditorOptionsBuilder Date()
        => New().Format("dd/MM/yyyy").DisplayFormat("dd/MM/yyyy");

    /// <summary>Tarih + saat alani.</summary>
    public static EditorOptionsBuilder DateTime()
        => New().Format("dd/MM/yyyy HH:mm").DisplayFormat("dd/MM/yyyy HH:mm");

    /// <summary>Listeden secilen saat alani.</summary>
    public static EditorOptionsBuilder Time(int intervalMinutes = 5)
        => New()
            .Text("type", "time")
            .Text("pickerType", "list")
            .DisplayFormat("HH:mm")
            .DateSerializationFormat("yyyy-MM-ddTHH:mm:ss")
            .Number("interval", intervalMinutes)
            .Width("100%");

    /// <summary>Telefon alani: global bicim, maske ve ornek deger.</summary>
    public static EditorOptionsBuilder Phone(string invalidMessage = "Lütfen geçerli bir telefon numarası girin")
        => New()
            .Format("phoneGlobal")
            .Mask("(000) 000-0000", invalidMessage)
            .Raw("maskRules", "{\"X\":\"[0-9]\"}")
            .Placeholder("(555) 123-4567");

    /// <summary>Kaydirma cubugu; degeri ipucu olarak gosterir.</summary>
    public static EditorOptionsBuilder Slider()
        => New().Raw("tooltip", "{\"enabled\":true}");

    /// <summary>Gorsel yukleme alani.</summary>
    public static EditorOptionsBuilder ImageUpload(bool multiple = true, int width = 80, int height = 80)
        => New().Width(width).Height(height).Flag("multiple", multiple);

    /// <summary>Zengin metin (HTML) editoru; tam arac cubugu ile.</summary>
    /// <remarks>
    /// <c>height</c> verilirse editor sabitlenir ve icerik kaydirilir; <c>min-height</c> ise
    /// en az yuksekligi korurken yeni satirlarla buyumesine izin verir.
    /// Bloklar UI'daki <c>htmlEditorOptions.ts</c> varsayilaniyla birebir aynidir: istemci ic ice
    /// bloklari tek seviye birlestirdigi icin buradaki <c>toolbar</c> varsayilanin yerine gecer.
    /// </remarks>
    public static EditorOptionsBuilder Html(int minHeight = 200)
        => New()
            .Raw("toolbar", "{\"multiline\":true,\"items\":[" + string.Join(",", HtmlToolbarItems()) + "]}")
            .Raw("imageUpload", "{\"tabs\":[\"file\",\"url\"],\"fileUploadMode\":\"base64\"}")
            .Raw("mediaResizing", "{\"enabled\":true}")
            .Raw("tableResizing", "{\"enabled\":true}")
            .Raw("tableContextMenu", "{\"enabled\":true}")
            .Flag("encodeHtml", true)
            .Raw("elementAttr", "{\"style\":\"min-height:" + EditorJson.Number(minHeight) + "px\"}");

    private static readonly string[] HtmlToolbarNames =
    [
        "undo", "redo", "separator",
        "header", "size", "font", "separator",
        "bold", "italic", "underline", "strike", "superscript", "subscript", "separator",
        "color", "background", "separator",
        "alignLeft", "alignCenter", "alignRight", "alignJustify", "separator",
        "orderedList", "bulletList", "decreaseIndent", "increaseIndent", "separator",
        "blockquote", "codeBlock", "link", "image", "separator",
        "insertTable", "insertHeaderRow", "insertRowAbove", "insertRowBelow", "deleteRow",
        "insertColumnLeft", "insertColumnRight", "deleteColumn", "cellProperties", "tableProperties", "deleteTable",
        "separator", "clear"
    ];

    private static readonly string[] HtmlFontSizes = ["8pt", "10pt", "12pt", "14pt", "18pt", "24pt", "36pt"];

    private static readonly string[] HtmlFontFamilies =
    [
        "Arial", "Courier New", "Georgia", "Impact",
        "Lucida Console", "Segoe UI", "Tahoma", "Times New Roman", "Verdana"
    ];

    private static readonly string[] HtmlHeaderValues = ["false", "1", "2", "3", "4", "5", "6"];

    private static IEnumerable<string> HtmlToolbarItems()
        => HtmlToolbarNames.Select(name => name switch
        {
            "size" => Picker(name, HtmlFontSizes.Select(EditorJson.Quote), "Font size"),
            "font" => Picker(name, HtmlFontFamilies.Select(EditorJson.Quote), "Font family"),
            "header" => Picker(name, HtmlHeaderValues, "Header"),
            _ => Item(name)
        });

    private static string Item(string name) => "{\"name\":" + EditorJson.Quote(name) + "}";

    /// <summary><paramref name="values"/> JSON olarak yazilmis degerlerdir (metin tirnakli, sayi/bool ciplak).</summary>
    private static string Picker(string name, IEnumerable<string> values, string ariaLabel)
        => "{\"name\":" + EditorJson.Quote(name) +
           ",\"acceptedValues\":[" + string.Join(",", values) + "]" +
           ",\"options\":{\"inputAttr\":{\"aria-label\":" + EditorJson.Quote(ariaLabel) + "}}}";
}