namespace AcDream.UI.Abstractions.Panels.Settings;

/// <summary>
/// Chat-related preferences persisted to <c>settings.json</c>. Mixes
/// retail's <c>CharacterOptions2</c> chat-channel filter bits (Hear*Chat
/// + TimeStamp + FilterLanguage + AppearOffline) with a few visual
/// preferences (font size) that don't have a retail bitfield.
/// See <c>docs/research/named-retail/acclient.h:3451+</c> for the
/// retail bit values.
///
/// <para>
/// L.0 scope: <b>local-only</b> like the rest of L.0. The Hear*Chat
/// flags affect client-side <i>display</i> filtering of the existing
/// channels — the server still streams every line; the client decides
/// what to render. Server-sync arrives in a later phase that flips the
/// retail-faithful "tell server which channels I'm subscribed to"
/// switch.
/// </para>
/// </summary>
public sealed record ChatSettings(
    // CharacterOptions2 (32-bit) channel filters.
    bool HearGeneralChat,                // 0x100   — General channel
    bool HearTradeChat,                  // 0x200   — Trade channel
    bool HearLFGChat,                    // 0x400   — LFG channel
    bool HearRoleplayChat,               // 0x800   — RP channel
    bool HearSocietyChat,                // 0x80000 — Society chat (CD/EW/RB)
    bool AppearOffline,                  // 0x1000  — hide /who status
    bool ShowTimestamps,                 // 0x40    — TimeStamp prefix on chat lines
    bool FilterProfanity,                // 0x20000 — FilterLanguage (Turbine's profanity filter)
    // Visual / UX (no retail bitfield).
    float FontSize)                      // chat panel font, 10..20 pt
{
    /// <summary>Sensible starting values matching the retail "all on" stance.</summary>
    public static ChatSettings Default { get; } = new(
        HearGeneralChat:    true,
        HearTradeChat:      true,
        HearLFGChat:        true,
        HearRoleplayChat:   true,
        HearSocietyChat:    true,
        AppearOffline:      false,
        ShowTimestamps:     true,
        FilterProfanity:    true,
        FontSize:           12f);
}