using UnityEngine;

namespace ProjectM.Client
{
    /// <summary>
    /// Live-tunable knobs for the client-only COMBAT-FEEL slice (Stage E). A static bridge — mirrors
    /// <see cref="AimPresentation"/> — so values can be poked at runtime via MCP <c>execute_code</c>
    /// (e.g. <c>ProjectM.Client.FeelConfig.HitShakeLocal = 0.4f;</c>) WITHOUT a recompile, for interactive
    /// tuning. Read ONLY by client-presentation systems (<see cref="CombatFeedbackSystem"/>,
    /// <see cref="AimReticleSystem"/>) and the <see cref="PrototypeCameraRig"/> MonoBehaviour — all non-Burst,
    /// main-thread. NEVER read these from a <c>[BurstCompile]</c> system (managed-static + Color/enum-in-Burst
    /// hazards); they are presentation-only and never touch the deterministic simulation.
    /// <para>
    /// Defaults match the values previously hardcoded in CombatFeedbackSystem so behaviour is byte-identical
    /// until a knob is poked. <see cref="ResetDefaults"/> re-stamps every field on play-enter via
    /// <c>[RuntimeInitializeOnLoadMethod(SubsystemRegistration)]</c> because statics survive fast-enter-playmode
    /// domain reloads — without it a poked value would leak across play-enters and flash stale feel (the exact
    /// bug <see cref="AimPresentation"/>'s reset prevents).
    /// </para>
    /// </summary>
    public static class FeelConfig
    {
        // ---- Feature 1: hit camera punch + (camera-only) hit-stop ----
        /// <summary>Camera shake when the LOCAL player is hit (fed to PrototypeCameraRig.AddShake, clamp 0.8).</summary>
        public static float HitShakeLocal;
        /// <summary>Camera shake when a remote player / Husk is hit.</summary>
        public static float HitShakeRemote;
        /// <summary>Hit-spark particle burst count (procedural fallback path).</summary>
        public static int HitBurstCount;
        /// <summary>Hit SFX volume.</summary>
        public static float HitSfxVolume;
        /// <summary>Degrees of transient FOV "kick" on a LOCAL hit — the netcode-safe hit-stop (NEVER Time.timeScale). 0 = off.</summary>
        public static float HitStopFovKick;
        /// <summary>Milliseconds the FOV kick eases back to base.</summary>
        public static float HitStopDurationMs;

        // ---- Feature 1/2: death camera punch ----
        /// <summary>Camera shake on LOCAL player death (loudest event by design).</summary>
        public static float PlayerDeathShake;
        /// <summary>Camera shake on a remote player's death.</summary>
        public static float RemotePlayerDeathShake;
        /// <summary>Base death-burst particle count (player death + Husk-death base).</summary>
        public static int DeathBurstCount;

        // ---- Feature 2: kill-shot fanfare (Husk death) ----
        /// <summary>Camera shake on a Husk kill (nudged above a glancing hit, kept under PlayerDeathShake).</summary>
        public static float KillShake;
        /// <summary>Multiplier on DeathBurstCount for a Husk kill (result clamped by MaxActiveVfx).</summary>
        public static float KillBurstScale;
        /// <summary>Optional FOV kick on a kill (degrees). 0 = off.</summary>
        public static float KillFovKick;
        /// <summary>Husk-death SFX volume.</summary>
        public static float KillSfxVolume;

        // ---- Feature 3: respawn shimmer / fade-in (local player recovery) ----
        /// <summary>Master gate for the local-player respawn shimmer.</summary>
        public static bool RespawnShimmerEnabled;
        /// <summary>Particle burst count for the recovery shimmer.</summary>
        public static int RespawnShimmerBurst;
        /// <summary>Light camera punch on recovery so respawn reads as "reinforcing".</summary>
        public static float RespawnShimmerShake;

        // ---- Feature 4: reticle lock-on tether (cosmetic aim HINT) ----
        /// <summary>Master gate for the lock-on tether.</summary>
        public static bool LockOnEnabled;
        /// <summary>Show the tether only on the Gamepad scheme (mirrors the server's gamepad-only auto-target assist).</summary>
        public static bool LockOnGamepadOnly;
        /// <summary>Max world distance from the player to a tethered Husk.</summary>
        public static float LockOnRange;
        /// <summary>Forward half-arc (degrees) around PlayerFacing within which a Husk is eligible.</summary>
        public static float LockOnArcDegrees;
        /// <summary>Tether line tint (subtle highlight, not a laser).</summary>
        public static Color LockOnLineColor;
        /// <summary>Tether line width (world units).</summary>
        public static float LockOnLineWidth;

        [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.SubsystemRegistration)]
        public static void ResetDefaults()
        {
            // Feature 1
            HitShakeLocal = 0.32f;
            HitShakeRemote = 0.10f;
            HitBurstCount = 10;
            HitSfxVolume = 0.70f;
            HitStopFovKick = 1.5f;
            HitStopDurationMs = 90f;

            // Feature 1/2 death
            PlayerDeathShake = 0.50f;
            RemotePlayerDeathShake = 0.25f;
            DeathBurstCount = 28;

            // Feature 2 kill-shot
            KillShake = 0.20f;
            KillBurstScale = 1.5f;
            KillFovKick = 1.0f;
            KillSfxVolume = 0.75f;

            // Feature 3 respawn
            RespawnShimmerEnabled = true;
            RespawnShimmerBurst = 24;
            RespawnShimmerShake = 0.12f;

            // Feature 4 tether
            LockOnEnabled = true;
            LockOnGamepadOnly = true;
            LockOnRange = 9.0f;
            LockOnArcDegrees = 60f;
            LockOnLineColor = new Color(0.55f, 0.9f, 1f, 0.35f);
            LockOnLineWidth = 0.05f;
        }
    }
}