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>
/// <b>Campaign CH slice CH3 (2026-08-09):</b> these five Hear*Chat flags
/// are no longer local-only display filters — they ARE retail's server-side
/// Turbine room membership. The App host seeds this draft from
/// <c>RuntimeCharacterOptionsState.Options2</c> (already parsed out of
/// PlayerDescription) whenever a fresh description lands, and Save publishes
/// any changed bit through <c>SetSingleCharacterOption (0x0005)</c> —
/// <c>RuntimeSettingsController.SyncChatFromServerOptions</c> /
/// <c>SaveChat</c>. There is no sixth toggle for
/// <c>HearAllegianceChat (CharacterOptions1 0x40000000)</c>: retail's own
/// Settings UI does not expose one either — Allegiance chat membership rides
/// allegiance membership, not a standalone preference.
/// </para>
///
/// <para>
/// N5 (CH3 Opus review, 2026-08-09): the server-backed sync/publish
/// wiring above covers ONLY the five Hear*Chat fields.
/// <see cref="AppearOffline"/>, <see cref="ShowTimestamps"/>, and
/// <see cref="FilterProfanity"/> each correspond to a real retail
/// <c>CharacterOptions2</c> bit (per the field comments below) but are
/// deliberately NOT wired to <c>SyncChatFromServerOptions</c> or
/// <c>SaveChat</c>'s <c>SetSingleCharacterOption</c> publish — they stay
/// local-only display preferences. Do not extend the sync/publish pair to
/// them without a corresponding design decision; today they are read and
/// written from <c>settings.json</c> alone.
/// </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
    // Campaign CH slice CH6b: local-only persistence of the four floating
    // chat windows' 64-bit text-type filters
    // (AcDream.Core.Chat.ChatWindowState — retail's per-window
    // 0x1000007F option, docs/research/2026-08-09-chat-retail-color-table.md
    // §4). Retail persists these server-side inside the opaque
    // 0x1000008C GameplayOptions blob (window-shell research doc §4.4);
    // acdream has no writer for that blob yet, so these fields are the
    // interim local store, with default values matching retail's own
    // ChatInterface::PostInit @0x004F3DD0 seed exactly. Trailing with
    // defaults so no existing positional/named ChatSettings construction
    // site needed to change.
    ulong ChatWindow1Filter = 0x0000101Cu,   // Speech, Tell, Speech_Direct_Send, Emote
    ulong ChatWindow2Filter = 0x00040C00u,   // Social, Social_Send, Allegiance
    ulong ChatWindow3Filter = 0x00080000u,   // Fellowship
    ulong ChatWindow4Filter = 0x78000000u,   // Turbine General/Trade/LFG/Roleplay
    // Campaign OP slice OP5: the MAIN chat window's own filter — CH6a/b's
    // ChatWindowState.SetFilter already accepted window id 0 as a real write
    // (its class doc: "Retail's main window IS user-settable through the
    // options page; only the settings UI to drive this is future work") but
    // nothing persisted it until the Chat tab's main-window filter block
    // shipped. Default matches ChatWindowState.MainWindowDefaultFilter.
    ulong ChatWindowMainFilter = 0xFBFFFFFFu,
    // Campaign CH slice CH6c: retail's two GLOBAL window-opacity options
    // (Option_DefaultOpacity_Property 0x10000080 / Option_ActiveOpacity_Property
    // 0x10000081, docs/research/2026-08-09-chat-retail-window-shell.md §3).
    // DefaultOpacity applies while a window's descendant does NOT have keyboard
    // focus; ActiveOpacity while it does. Always active >= default — enforced by
    // ChatOpacityLink at every setter, not by clamping here. acdream applies this
    // GLOBALLY to every RetailWindowManager-registered window (register row
    // AP-190), where retail scopes it to ChatInterface-derived windows only.
    //
    // CH6c review fix (2026-08-10): the base ChatInterface ctor's 0.5/1.0 pair
    // is retail-correct ONLY for the four floating chat windows —
    // gmMainChatUI overrides to 1.0/1.0 (0x004CD0F0), and every other
    // RetailWindowManager-registered window (radar, vitals, toolbar, ...) has
    // no retail opacity fade at all, so applying 0.5 to them out of the box
    // rendered the whole registered UI half-transparent forever, including
    // several windows that can never take keyboard focus and so were
    // PERMANENTLY stuck at 0.5. DefaultOpacity now ships 1.0, matching
    // retail-identical opaque presentation for the 11 non-chat windows and
    // the main chat window; the four floating chat windows lose their
    // retail 0.5-while-idle fade by default, but the Settings → Chat
    // transparency slider remains fully user-settable (AP-190).
    float DefaultOpacity = 1.0f,
    float ActiveOpacity = 1.0f,
    // Campaign OP slice OP6: the Config tab's "UI Options" section —
    // UI_ChatFontFace (retail Windows TrueType face name, enum choices
    // starting "Arial") and UI_ChatFontSize (index into
    // Tiny/Small/Medium/Large/XLarge, gmClient::InitUIPreferences
    // @0x0040387b/@0x00403a1a). Deliberately NOT the same field as
    // FontSize above: FontSize is acdream's own live 10..20pt render
    // knob with no verified index-to-point mapping to retail's five-tier
    // enum, and acdream's text rendering has no arbitrary system-font-face
    // swap (DAT-baked/bitmap fonts only) — both new fields are honest
    // store-only round-trips (register row, OP6).
    int ChatFontFace = 2,
    int ChatFontSizeIndex = 1)
{
    /// <summary>
    /// N4 (CH3 Opus review): matches ACE's ACTUAL
    /// <c>CharacterOptions2.Default (0x00948700)</c> stance for the five
    /// server-backed Hear*Chat bits — General/Trade/LFG are on, but
    /// Roleplay (<c>0x800</c>) and Society (<c>0x80000</c>) are OFF (research
    /// doc §5.2). The prior "matching the retail 'all on' stance" comment
    /// here was wrong: two of the five synced flags are off by default. The
    /// server reseed at login (<c>SyncChatFromServerOptions</c>) remains
    /// authoritative regardless of this constant — this is only the
    /// pre-login / never-connected starting value.
    /// </summary>
    public static ChatSettings Default { get; } = new(
        HearGeneralChat:    true,
        HearTradeChat:      true,
        HearLFGChat:        true,
        HearRoleplayChat:   false,
        HearSocietyChat:    false,
        AppearOffline:      false,
        ShowTimestamps:     true,
        FilterProfanity:    true,
        FontSize:           12f);
}