Emberwild/Assets/GAME/Script/Player/Events/PlayerEvents.cs

using System;
using System.Collections.Generic;
using System.Diagnostics;
using UnityEngine;
using Ashwild.Audio;
using Ashwild.Building;
using Ashwild.Harvesting;
using Ashwild.Interaction;
using Ashwild.Inventory;

namespace Ashwild.Player
{
    public static class PlayerEvents
    {
        // ============================================================
        // State (single source of truth — read by everyone)
        // ============================================================

        public static bool IsDead { get; private set; }
        public static bool IsGrounded { get; private set; } = true;
        public static bool IsCrouching { get; private set; }
        public static bool IsSprinting { get; private set; }
        public static bool IsSliding { get; private set; }
        public static bool IsOnSlope { get; private set; }
        public static bool IsInventoryOpen { get; private set; }
        public static bool IsChestOpen { get; private set; }
        public static bool IsBuildMenuOpen { get; private set; }
        // True while a build ghost is being positioned in the world (menu closed, no structure placed yet).
        public static bool IsPlacingBuild { get; private set; }
        // True while the build hammer is in demolition mode (right-click held, menu closed, not placing).
        public static bool IsDemolishing { get; private set; }
        // Composite "the player is actively building" flag — true whenever the construction menu is open,
        // a ghost is being positioned, or the hammer is demolishing. Recomputed from those three states
        // (never set directly) and used to widen the crosshair and to suppress item pickup while building.
        public static bool IsBuilding { get; private set; }
        public static bool IsPaused { get; private set; }

        // True when a networked session is live (host or client).
        public static bool IsOnline { get; private set; }
        // True when this instance owns the server (host = server + local client).
        public static bool IsHost { get; private set; }
        // Shareable code of the current session (host SteamID64). Empty when offline.
        public static string SessionCode { get; private set; } = string.Empty;

        // The interactable the player is currently aiming at (null when none).
        public static IInteractable HoveredInteractable { get; private set; }

        // Single source of truth for "the player must not respond to input right now".
        // Used by locomotion, camera, tools and interaction so they all agree.
        public static bool InputLocked => IsDead || IsInventoryOpen || IsChestOpen || IsBuildMenuOpen || IsPaused;

        // ============================================================
        // Input events
        // ============================================================

        public static event Action<Vector2> MoveInput;
        public static event Action<Vector2> LookInput;
        public static event Action JumpPressed;
        public static event Action<bool> SprintHeld;
        public static event Action CrouchPressed;
        public static event Action AttackPressed;
        public static event Action SecondaryUsePressed;         // right-click / secondary use (build menu, aim, block, ...)
        public static event Action<bool> SecondaryUseHeld;      // right-click pressed (true) / released (false) — for tap-vs-hold gestures
        public static event Action InteractPressed;
        public static event Action DropPressed;
        public static event Action InventoryTogglePressed;
        public static event Action<int> HotbarSlotPressed;
        public static event Action<float> HotbarScroll;
        public static event Action BuildRotatePressed;          // rotate the build ghost one step (R key) while placing
        public static event Action CancelPressed;               // UI "Cancel" (Escape) — back / pause / close

        // ============================================================
        // Locomotion events
        // ============================================================

        public static event Action<bool, float> GroundedChanged;        // isGrounded, impactSpeed
        public static event Action<bool, Vector3> SlopeChanged;
        public static event Action<PhysicsMaterial> GroundMaterialChanged;
        public static event Action<Vector3> VelocityChanged;
        public static event Action<float> YawChanged;
        public static event Action Jumped;
        public static event Action<bool> CrouchChanged;
        public static event Action<bool> SprintChanged;
        public static event Action<float, Vector3> CapsuleHeightChanged;
        public static event Action<float> CameraHeightChanged;
        public static event Action<float> LandingStunStarted;
        public static event Action LandingStunEnded;
        public static event Action SlideStarted;
        public static event Action SlideEnded;
        public static event Action<int> MultiJumpPerformed;

        // ============================================================
        // Stats events
        // ============================================================

        public static event Action<float, float> HealthChanged;
        public static event Action<float, float> HungerChanged;
        public static event Action<float, float> ThirstChanged;
        public static event Action<float, DamageType> Damaged;
        public static event Action<float> FallDamageApplied;
        public static event Action<float> StarvationTick;
        public static event Action<float> DehydrationTick;

        // ============================================================
        // Inventory events
        // ============================================================

        public static event Action<int> InventorySlotChanged;
        public static event Action<int> SelectedHotbarSlotChanged;
        // (item, quantity, isTransfer) — isTransfer is true when the stack merely moved between the
        // player's own containers (a chest withdrawal, a refund) instead of being newly acquired from
        // the world. Consumers that announce a gain (notifications) skip transfers; consumers that only
        // track "the player has held this" (craft discovery) treat both the same.
        public static event Action<ItemData, int, bool> ItemAdded;
        public static event Action<ItemData, int> ItemDropped;
        public static event Action<ItemData> ItemConsumed;
        public static event Action<ItemData, int> ItemPickedUp;
        public static event Action<ItemData> ItemDiscovered;         // an item entered the inventory for the first time (unlocks recipes)
        public static event Action<Sprite, string> RecipeDiscovered; // a recipe was just revealed (icon, name) — for the "NEW" craft notification
        public static event Action<ItemData> HeldItemChanged;
        public static event Action<bool> InventoryOpenChanged;
        public static event Action<bool> ChestOpenChanged;
        public static event Action<bool> GamePausedChanged;

        // ============================================================
        // Interaction events
        // ============================================================

        public static event Action<IInteractable> InteractableHoverChanged; // null = nothing hovered

        // ============================================================
        // Tools events
        // ============================================================

        public static event Action AttackSwung;
        public static event Action<Harvestable, float> HarvestableHit;
        public static event Action EquipAnimComplete;
        public static event Action UnequipAnimComplete;

        // ============================================================
        // Building events
        // ============================================================

        public static event Action BuildMenuToggleRequested;    // the build hammer asks to open/close the construction menu
        public static event Action BuildCancelRequested;        // the build hammer asks to cancel/exit the current ghost placement (right-click while placing)
        public static event Action<bool> BuildMenuOpenChanged;  // the construction menu opened (true) or closed (false)
        public static event Action<bool> BuildPlacingChanged;   // a build ghost started (true) / stopped (false) being positioned
        public static event Action<bool> DemolishModeChanged;   // the hammer entered (true) / left (false) demolition mode (right-click held)
        public static event Action<bool> BuildModeChanged;      // the composite build mode turned on (true) / off (false) — see IsBuilding
        public static event Action<IReadOnlyList<BuildCostView>> BuildCostChanged; // the active build's cost to display near the crosshair (null/empty = clear)

        // ============================================================
        // Cooking events
        // ============================================================

        public static event Action<ItemData> FoodPlacedToCook;  // the raw item placed on a station
        public static event Action<ItemData> FoodCookedReady;   // the cooked result is ready to take
        public static event Action<ItemData> FuelAdded;         // the fuel item consumed to feed a station

        // ============================================================
        // Audio events
        // ============================================================

        public static event Action<SurfaceSoundProfile> SurfaceChanged;
        public static event Action<SurfaceSoundProfile, float> FootstepTriggered;

        // ============================================================
        // Lifecycle events
        // ============================================================

        public static event Action Died;
        public static event Action Respawned;
        public static event Action<bool> DeathChanged;
        public static event Action<Vector3, Quaternion> RespawnPointChanged; // the local player's respawn pose was reassigned (e.g. claimed a bed)

        // ============================================================
        // Network / session events
        // ============================================================

        public static event Action SessionStarting;             // host/join requested, before transport is up
        public static event Action<string> SessionStarted;      // host is up — payload is the shareable code
        public static event Action<string> SessionJoining;      // local client connecting to a code
        public static event Action SessionJoined;               // local client connected to a host
        public static event Action SessionStopped;              // session fully torn down (offline again)
        public static event Action<string> SessionError;        // human-readable failure reason
        public static event Action<int> RemotePlayerCountChanged; // number of *other* connected clients
        public static event Action LocalPlayerSpawned;          // the local owned player NetworkObject is ready
        public static event Action LoadingCurtainShown;         // loading curtain finished fading in — safe to start the heavy scene load behind it
        public static event Action ReturningToMenu;             // leaving the session back to the menu — raise the curtain over the swap
        public static event Action MenuReady;                   // the menu scene has finished loading — lower the curtain
        public static event Action<ulong, string, string> InviteReceived; // inviter SteamID64, inviter name, connect code

        // ============================================================
        // Raisers — state is updated automatically here so consumers
        // can rely on PlayerEvents.IsX matching the latest event.
        // ============================================================

        public static void RaiseMoveInput(Vector2 v) { Log(nameof(MoveInput)); MoveInput?.Invoke(v); }
        public static void RaiseLookInput(Vector2 v) { LookInput?.Invoke(v); }
        public static void RaiseJumpPressed() { Log(nameof(JumpPressed)); JumpPressed?.Invoke(); }
        public static void RaiseSprintHeld(bool b) { Log(nameof(SprintHeld)); SprintHeld?.Invoke(b); }
        public static void RaiseCrouchPressed() { Log(nameof(CrouchPressed)); CrouchPressed?.Invoke(); }
        public static void RaiseAttackPressed() { Log(nameof(AttackPressed)); AttackPressed?.Invoke(); }
        public static void RaiseSecondaryUsePressed() { Log(nameof(SecondaryUsePressed)); SecondaryUsePressed?.Invoke(); }
        public static void RaiseSecondaryUseHeld(bool held) { Log(nameof(SecondaryUseHeld)); SecondaryUseHeld?.Invoke(held); }
        public static void RaiseInteractPressed() { Log(nameof(InteractPressed)); InteractPressed?.Invoke(); }
        public static void RaiseDropPressed() { Log(nameof(DropPressed)); DropPressed?.Invoke(); }
        public static void RaiseInventoryTogglePressed() { Log(nameof(InventoryTogglePressed)); InventoryTogglePressed?.Invoke(); }
        public static void RaiseHotbarSlotPressed(int i) { Log(nameof(HotbarSlotPressed)); HotbarSlotPressed?.Invoke(i); }
        public static void RaiseHotbarScroll(float f) { HotbarScroll?.Invoke(f); }
        public static void RaiseBuildRotatePressed() { Log(nameof(BuildRotatePressed)); BuildRotatePressed?.Invoke(); }
        public static void RaiseCancelPressed() { Log(nameof(CancelPressed)); CancelPressed?.Invoke(); }

        public static void RaiseGroundedChanged(bool grounded, float impactSpeed)
        {
            IsGrounded = grounded;
            Log(nameof(GroundedChanged));
            GroundedChanged?.Invoke(grounded, impactSpeed);
        }
        public static void RaiseSlopeChanged(bool onSlope, Vector3 normal)
        {
            IsOnSlope = onSlope;
            SlopeChanged?.Invoke(onSlope, normal);
        }
        public static void RaiseGroundMaterialChanged(PhysicsMaterial m) { GroundMaterialChanged?.Invoke(m); }
        public static void RaiseVelocityChanged(Vector3 v) { VelocityChanged?.Invoke(v); }
        public static void RaiseYawChanged(float y) { YawChanged?.Invoke(y); }
        public static void RaiseJumped() { Log(nameof(Jumped)); Jumped?.Invoke(); }
        public static void RaiseCrouchChanged(bool b)
        {
            IsCrouching = b;
            Log(nameof(CrouchChanged));
            CrouchChanged?.Invoke(b);
        }
        public static void RaiseSprintChanged(bool b)
        {
            IsSprinting = b;
            Log(nameof(SprintChanged));
            SprintChanged?.Invoke(b);
        }
        public static void RaiseCapsuleHeightChanged(float h, Vector3 c) { CapsuleHeightChanged?.Invoke(h, c); }
        public static void RaiseCameraHeightChanged(float h) { CameraHeightChanged?.Invoke(h); }
        public static void RaiseLandingStunStarted(float d) { Log(nameof(LandingStunStarted)); LandingStunStarted?.Invoke(d); }
        public static void RaiseLandingStunEnded() { Log(nameof(LandingStunEnded)); LandingStunEnded?.Invoke(); }
        public static void RaiseSlideStarted()
        {
            IsSliding = true;
            Log(nameof(SlideStarted));
            SlideStarted?.Invoke();
        }
        public static void RaiseSlideEnded()
        {
            IsSliding = false;
            Log(nameof(SlideEnded));
            SlideEnded?.Invoke();
        }
        public static void RaiseMultiJumpPerformed(int i) { Log(nameof(MultiJumpPerformed)); MultiJumpPerformed?.Invoke(i); }

        public static void RaiseHealthChanged(float c, float m) { HealthChanged?.Invoke(c, m); }
        public static void RaiseHungerChanged(float c, float m) { HungerChanged?.Invoke(c, m); }
        public static void RaiseThirstChanged(float c, float m) { ThirstChanged?.Invoke(c, m); }
        public static void RaiseDamaged(float a, DamageType t) { Log(nameof(Damaged)); Damaged?.Invoke(a, t); }
        public static void RaiseFallDamageApplied(float a) { Log(nameof(FallDamageApplied)); FallDamageApplied?.Invoke(a); }
        public static void RaiseStarvationTick(float a) { StarvationTick?.Invoke(a); }
        public static void RaiseDehydrationTick(float a) { DehydrationTick?.Invoke(a); }

        public static void RaiseInventorySlotChanged(int i) { InventorySlotChanged?.Invoke(i); }
        public static void RaiseSelectedHotbarSlotChanged(int i) { Log(nameof(SelectedHotbarSlotChanged)); SelectedHotbarSlotChanged?.Invoke(i); }
        public static void RaiseItemAdded(ItemData d, int q, bool isTransfer = false) { Log(nameof(ItemAdded)); ItemAdded?.Invoke(d, q, isTransfer); }
        public static void RaiseItemDropped(ItemData d, int q) { Log(nameof(ItemDropped)); ItemDropped?.Invoke(d, q); }
        public static void RaiseItemConsumed(ItemData d) { Log(nameof(ItemConsumed)); ItemConsumed?.Invoke(d); }
        public static void RaiseItemPickedUp(ItemData d, int q) { Log(nameof(ItemPickedUp)); ItemPickedUp?.Invoke(d, q); }
        public static void RaiseItemDiscovered(ItemData d) { Log(nameof(ItemDiscovered)); ItemDiscovered?.Invoke(d); }
        public static void RaiseRecipeDiscovered(Sprite icon, string recipeName) { Log(nameof(RecipeDiscovered)); RecipeDiscovered?.Invoke(icon, recipeName); }
        public static void RaiseHeldItemChanged(ItemData d) { Log(nameof(HeldItemChanged)); HeldItemChanged?.Invoke(d); }
        public static void RaiseInventoryOpenChanged(bool b)
        {
            IsInventoryOpen = b;
            Log(nameof(InventoryOpenChanged));
            InventoryOpenChanged?.Invoke(b);
        }
        public static void RaiseChestOpenChanged(bool b)
        {
            IsChestOpen = b;
            Log(nameof(ChestOpenChanged));
            ChestOpenChanged?.Invoke(b);
        }
        public static void RaiseGamePaused(bool b)
        {
            IsPaused = b;
            Log(nameof(GamePausedChanged));
            GamePausedChanged?.Invoke(b);
        }

        public static void RaiseInteractableHoverChanged(IInteractable target)
        {
            HoveredInteractable = target;
            Log(nameof(InteractableHoverChanged));
            InteractableHoverChanged?.Invoke(target);
        }

        public static void RaiseAttackSwung() { Log(nameof(AttackSwung)); AttackSwung?.Invoke(); }
        public static void RaiseHarvestableHit(Harvestable h, float d) { Log(nameof(HarvestableHit)); HarvestableHit?.Invoke(h, d); }
        public static void RaiseEquipAnimComplete() { EquipAnimComplete?.Invoke(); }
        public static void RaiseUnequipAnimComplete() { UnequipAnimComplete?.Invoke(); }

        public static void RaiseBuildMenuToggleRequested() { Log(nameof(BuildMenuToggleRequested)); BuildMenuToggleRequested?.Invoke(); }
        public static void RaiseBuildCancelRequested() { Log(nameof(BuildCancelRequested)); BuildCancelRequested?.Invoke(); }
        public static void RaiseBuildMenuOpenChanged(bool open)
        {
            IsBuildMenuOpen = open;
            Log(nameof(BuildMenuOpenChanged));
            BuildMenuOpenChanged?.Invoke(open);
            RefreshBuildMode();
        }
        public static void RaiseBuildPlacingChanged(bool placing)
        {
            IsPlacingBuild = placing;
            Log(nameof(BuildPlacingChanged));
            BuildPlacingChanged?.Invoke(placing);
            RefreshBuildMode();
        }

        /// <summary>
        /// Publishes the active build's cost lines for the crosshair to render (or a null/empty list to
        /// clear it). Owner-side only; BuildManager re-raises it live as the inventory changes so the
        /// affordability colouring stays current while a piece is being positioned.
        /// </summary>
        public static void RaiseBuildCostChanged(IReadOnlyList<BuildCostView> cost)
        {
            Log(nameof(BuildCostChanged));
            BuildCostChanged?.Invoke(cost);
        }

        /// <summary>
        /// Toggles demolition mode (right-click held with the hammer out). Owner-side only; the
        /// hammer raises it and BuildManager drives the world-facing targeting/destroy from it.
        /// </summary>
        public static void RaiseDemolishModeChanged(bool on)
        {
            IsDemolishing = on;
            Log(nameof(DemolishModeChanged));
            DemolishModeChanged?.Invoke(on);
            RefreshBuildMode();
        }

        /// <summary>
        /// Recomputes the composite build-mode flag from its three sub-states and raises BuildModeChanged
        /// only when it actually flips, so consumers (crosshair spacing, pickup gating) react exactly once
        /// per transition instead of on every sub-state change.
        /// </summary>
        private static void RefreshBuildMode()
        {
            bool building = IsBuildMenuOpen || IsPlacingBuild || IsDemolishing;
            if (building == IsBuilding) return;
            IsBuilding = building;
            Log(nameof(BuildModeChanged));
            BuildModeChanged?.Invoke(building);
        }

        public static void RaiseFoodPlacedToCook(ItemData raw) { Log(nameof(FoodPlacedToCook)); FoodPlacedToCook?.Invoke(raw); }
        public static void RaiseFoodCookedReady(ItemData cooked) { Log(nameof(FoodCookedReady)); FoodCookedReady?.Invoke(cooked); }
        public static void RaiseFuelAdded(ItemData fuel) { Log(nameof(FuelAdded)); FuelAdded?.Invoke(fuel); }

        public static void RaiseSurfaceChanged(SurfaceSoundProfile p) { SurfaceChanged?.Invoke(p); }
        public static void RaiseFootstepTriggered(SurfaceSoundProfile p, float v) { FootstepTriggered?.Invoke(p, v); }

        public static void RaiseDied()
        {
            IsDead = true;
            Log(nameof(Died));
            Died?.Invoke();
            DeathChanged?.Invoke(true);
        }
        public static void RaiseRespawned()
        {
            IsDead = false;
            IsCrouching = false;
            IsSliding = false;
            IsSprinting = false;
            Log(nameof(Respawned));
            Respawned?.Invoke();
            DeathChanged?.Invoke(false);
        }

        /// <summary>
        /// Reassigns the local player's respawn pose (e.g. after claiming a bed). Owner-side only;
        /// the pose is pure local state and is never networked — each client keeps its own.
        /// </summary>
        public static void RaiseRespawnPointChanged(Vector3 position, Quaternion rotation)
        {
            Log(nameof(RespawnPointChanged));
            RespawnPointChanged?.Invoke(position, rotation);
        }

        public static void RaiseSessionStarting() { Log(nameof(SessionStarting)); SessionStarting?.Invoke(); }
        public static void RaiseSessionStarted(string code)
        {
            IsOnline = true;
            IsHost = true;
            SessionCode = code ?? string.Empty;
            Log(nameof(SessionStarted));
            SessionStarted?.Invoke(SessionCode);
        }
        public static void RaiseSessionJoining(string code)
        {
            SessionCode = code ?? string.Empty;
            Log(nameof(SessionJoining));
            SessionJoining?.Invoke(SessionCode);
        }
        public static void RaiseSessionJoined()
        {
            IsOnline = true;
            IsHost = false;
            Log(nameof(SessionJoined));
            SessionJoined?.Invoke();
        }
        public static void RaiseSessionStopped()
        {
            IsOnline = false;
            IsHost = false;
            SessionCode = string.Empty;
            ResetPlayerState();
            Log(nameof(SessionStopped));
            SessionStopped?.Invoke();
        }

        // Clears the transient, player-local state so a brand-new session/player starts clean.
        // The static bus tracks the LOCAL player only; without this, dying or opening the
        // inventory and then leaving a session would leave stale flags set for the next one.
        private static void ResetPlayerState()
        {
            IsDead = false;
            IsGrounded = true;
            IsCrouching = false;
            IsSprinting = false;
            IsSliding = false;
            IsOnSlope = false;
            IsInventoryOpen = false;
            IsChestOpen = false;
            IsBuildMenuOpen = false;
            IsPlacingBuild = false;
            IsDemolishing = false;
            IsBuilding = false;
            IsPaused = false;
            HoveredInteractable = null;
        }
        public static void RaiseSessionError(string reason) { Log(nameof(SessionError)); SessionError?.Invoke(reason); }
        public static void RaiseRemotePlayerCountChanged(int count) { Log(nameof(RemotePlayerCountChanged)); RemotePlayerCountChanged?.Invoke(count); }
        public static void RaiseLocalPlayerSpawned() { Log(nameof(LocalPlayerSpawned)); LocalPlayerSpawned?.Invoke(); }
        public static void RaiseLoadingCurtainShown() { Log(nameof(LoadingCurtainShown)); LoadingCurtainShown?.Invoke(); }
        public static void RaiseReturningToMenu() { Log(nameof(ReturningToMenu)); ReturningToMenu?.Invoke(); }
        public static void RaiseMenuReady() { Log(nameof(MenuReady)); MenuReady?.Invoke(); }

        /// <summary>
        /// A friend invited the local player to their session (delivered by Steam). Carries the
        /// inviter's SteamID64, display name, and the connect code used to join their room.
        /// </summary>
        public static void RaiseInviteReceived(ulong inviterSteamId, string inviterName, string connectCode)
        {
            Log(nameof(InviteReceived));
            InviteReceived?.Invoke(inviterSteamId, inviterName, connectCode);
        }

        [Conditional("PLAYER_EVENT_LOG")]
        private static void Log(string evtName)
        {
            UnityEngine.Debug.Log($"[PlayerEvents] {evtName}");
        }
    }

    public enum DamageType { Generic, Fall, Starvation, Dehydration, Combat }
}