using System.Text.Json.Serialization;
using Core.Annotations;
using Core.Models.Eft.Common;
using Core.Models.Eft.Common.Tables;
using Core.Models.Eft.Inventory;
using Core.Models.Eft.ItemEvent;
using Core.Models.Spt.Config;
using Core.Models.Spt.Inventory;
using Core.Models.Utils;
using Core.Services;

namespace Core.Helpers;

[Injectable]
public class InventoryHelper
{
    protected ISptLogger<InventoryHelper> _logger;
    protected ProfileHelper _profileHelper;
    protected DialogueHelper _dialogueHelper;
    protected LocalisationService _localisationService;

    public InventoryHelper(
        ISptLogger<InventoryHelper> logger,
        ProfileHelper profileHelper,
        DialogueHelper dialogueHelper,
        LocalisationService localisationService
        )
    {
        _logger = logger;
        _profileHelper = profileHelper;
        _dialogueHelper = dialogueHelper;
        _localisationService = localisationService;
    }

    /// <summary>
    /// Add multiple items to player stash (assuming they all fit)
    /// </summary>
    /// <param name="sessionId">Session id</param>
    /// <param name="request">AddItemsDirectRequest request</param>
    /// <param name="pmcData">Player profile</param>
    /// <param name="output">Client response object</param>
    public void AddItemsToStash(
        string sessionId,
        AddItemsDirectRequest request,
        PmcData pmcData,
        ItemEventRouterResponse output)
    {
        throw new NotImplementedException();
    }

    /// <summary>
    /// Add whatever is passed in request.itemWithModsToAdd into player inventory (if it fits)
    /// </summary>
    /// <param name="sessionId">Session id</param>
    /// <param name="request">AddItemDirect request</param>
    /// <param name="pmcData">Player profile</param>
    /// <param name="output">Client response object</param>
    public void AddItemToStash(
        string sessionId,
        AddItemDirectRequest request,
        PmcData pmcData,
        ItemEventRouterResponse output)
    {
        throw new NotImplementedException();
    }

    /// <summary>
    /// Set FiR status for an item + its children
    /// </summary>
    /// <param name="itemWithChildren">An item</param>
    /// <param name="foundInRaid">Item was found in raid</param>
    protected void SetFindInRaidStatusForItem(List<Item> itemWithChildren, bool foundInRaid)
    {
        throw new NotImplementedException();
    }

    /// <summary>
    /// Remove properties from a Upd object used by a trader/ragfair that are unnecessary to a player
    /// </summary>
    /// <param name="upd">Object to update</param>
    protected void RemoveTraderRagfairRelatedUpdProperties(Upd upd)
    {
        throw new NotImplementedException();
    }

    /// <summary>
    /// Can all provided items be added into player inventory
    /// </summary>
    /// <param name="sessionId">Player id</param>
    /// <param name="itemsWithChildren">Array of items with children to try and fit</param>
    /// <returns>True all items fit</returns>
    public bool CanPlaceItemsInInventory(string sessionId, List<List<Item>> itemsWithChildren)
    {
        throw new NotImplementedException();
    }

    /// <summary>
    /// Do the provided items all fit into the grid
    /// </summary>
    /// <param name="containerFS2D">Container grid to fit items into</param>
    /// <param name="itemsWithChildren">Items to try and fit into grid</param>
    /// <returns>True all fit</returns>
    public bool CanPlaceItemsInContainer(List<List<double>>? containerFS2D, List<List<Item>> itemsWithChildren)
    {
        throw new NotImplementedException();
    }

    /// <summary>
    /// Does an item fit into a container grid
    /// </summary>
    /// <param name="containerFS2D">Container grid</param>
    /// <param name="itemWithChildren">Item to check fits</param>
    /// <returns>True it fits</returns>
    public bool CanPlaceItemInContainer(List<List<int>>? containerFS2D, List<Item> itemWithChildren)
    {
        throw new NotImplementedException();
    }

    /// <summary>
    /// Find a free location inside a container to fit the item
    /// </summary>
    /// <param name="containerFS2D">Container grid to add item to</param>
    /// <param name="itemWithChildren">Item to add to grid</param>
    /// <param name="containerId">Id of the container we're fitting item into</param>
    /// <param name="desiredSlotId">Slot id value to use, default is "hideout"</param>
    public void PlaceItemInContainer(
        List<List<double>> containerFS2D,
        List<Item> itemWithChildren,
        string containerId,
        string desiredSlotId = "hideout")
    {
        throw new NotImplementedException();
    }

    /// <summary>
    /// Find a location to place an item into inventory and place it
    /// </summary>
    /// <param name="stashFS2D">2-dimensional representation of the container slots</param>
    /// <param name="sortingTableFS2D">2-dimensional representation of the sorting table slots</param>
    /// <param name="itemWithChildren">Item to place with children</param>
    /// <param name="playerInventory">Players inventory</param>
    /// <param name="useSortingTable">Should sorting table to be used if main stash has no space</param>
    /// <param name="output">Output to send back to client</param>
    protected void PlaceItemInInventory(
        List<List<double>> stashFS2D,
        List<List<double>> sortingTableFS2D,
        List<Item> itemWithChildren,
        BotBaseInventory playerInventory,
        bool useSortingTable,
        ItemEventRouterResponse output)
    {
        throw new NotImplementedException();
    }

    /// <summary>
    /// Handle Remove event
    /// Remove item from player inventory + insured items array
    /// Also deletes child items
    /// </summary>
    /// <param name="profile">Profile to remove item from (pmc or scav)</param>
    /// <param name="itemId">Items id to remove</param>
    /// <param name="sessionId">Session id</param>
    /// <param name="output">OPTIONAL - ItemEventRouterResponse</param>
    public void RemoveItem(PmcData profile, string itemId, string sessionId, ItemEventRouterResponse output = null)
    {
        throw new NotImplementedException();
    }

    /// <summary>
    /// Delete desired item from a player profiles mail
    /// </summary>
    /// <param name="sessionId">Session id</param>
    /// <param name="removeRequest">Remove request</param>
    /// <param name="output">OPTIONAL - ItemEventRouterResponse</param>
    public void RemoveItemAndChildrenFromMailRewards(string sessionId, InventoryRemoveRequestData removeRequest, ItemEventRouterResponse output = null)
    {
        throw new NotImplementedException();
    }

    /// <summary>
    /// Find item by id in player inventory and remove x of its count
    /// </summary>
    /// <param name="pmcData">player profile</param>
    /// <param name="itemId">Item id to decrement StackObjectsCount of</param>
    /// <param name="countToRemove">Number of item to remove</param>
    /// <param name="sessionId">Session id</param>
    /// <param name="output">ItemEventRouterResponse</param>
    /// <returns>ItemEventRouterResponse</returns>
    public ItemEventRouterResponse RemoveItemByCount(PmcData pmcData, string itemId, int countToRemove, string sessionId, ItemEventRouterResponse output = null)
    {
        throw new NotImplementedException();
    }

    /// <summary>
    /// Get the height and width of an item - can have children that alter size
    /// </summary>
    /// <param name="itemTpl">Item to get size of</param>
    /// <param name="itemId">Items id to get size of</param>
    /// <param name="inventoryItems"></param>
    /// <returns>[width, height]</returns>
    public List<int> GetItemSize(string? itemTpl, string itemId, List<Item> inventoryItems)
    {
        throw new NotImplementedException();
    }

    /// <summary>
    /// Calculates the size of an item including attachments
    /// takes into account if item is folded
    /// </summary>
    /// <param name="itemTpl">Items template id</param>
    /// <param name="itemId">Items id</param>
    /// <param name="inventoryItemHash">Hashmap of inventory items</param>
    /// <returns>An array representing the [width, height] of the item</returns>
    protected List<int> GetSizeByInventoryItemHash(string itemTpl, string itemId, InventoryItemHash inventoryItemHash)
    {
        throw new NotImplementedException();
    }

    /// <summary>
    /// Get a blank two-dimensional representation of a container
    /// </summary>
    /// <param name="containerH">Horizontal size of container</param>
    /// <param name="containerY">Vertical size of container</param>
    /// <returns>Two-dimensional representation of container</returns>
    protected List<List<int>> GetBlankContainerMap(int containerH, int containerY)
    {
        throw new NotImplementedException();
    }

    /// <summary>
    /// Get a 2d mapping of a container with what grid slots are filled
    /// </summary>
    /// <param name="containerH">Horizontal size of container</param>
    /// <param name="containerV">Vertical size of container</param>
    /// <param name="itemList">Players inventory items</param>
    /// <param name="containerId">Id of the container</param>
    /// <returns>Two-dimensional representation of container</returns>
    public List<List<int>> GetContainerMap(double containerH, double containerV, List<Item> itemList, string containerId)
    {
        throw new NotImplementedException();
    }

    protected bool IsVertical(ItemLocation itemLocation)
    {
        throw new NotImplementedException();
    }

    protected InventoryItemHash GetInventoryItemHash(List<Item> inventoryItems)
    {
        throw new NotImplementedException();
    }

    /// <summary>
    /// Return the inventory that needs to be modified (scav/pmc etc)
    /// Changes made to result apply to character inventory
    /// Based on the item action, determine whose inventories we should be looking at for from and to.
    /// </summary>
    /// <param name="request">Item interaction request</param>
    /// <param name="item">Item being moved/split/etc to inventory</param>
    /// <param name="sessionId">Session id / players Id</param>
    /// <returns>OwnerInventoryItems with inventory of player/scav to adjust</returns>
    public OwnerInventoryItems GetOwnerInventoryItems(
        InventoryBaseActionRequestData request,
        string item,
        string sessionId)
    {
        var pmcItems = _profileHelper.GetPmcProfile(sessionId).Inventory.Items;
        var scavProfile = _profileHelper.GetScavProfile(sessionId);
        var fromInventoryItems = pmcItems;
        var fromType = "pmc";

        if (request.FromOwner is not null)
        {
            if (request.FromOwner.Id == scavProfile.Id)
            {
                fromInventoryItems = scavProfile.Inventory.Items;
                fromType = "scav";
            }
            else if (request.FromOwner.Type.ToLower() == "mail")
            {
                // Split requests don't use 'use' but 'splitItem' property
                fromInventoryItems = _dialogueHelper.GetMessageItemContents(request.FromOwner.Id, sessionId, item);
                fromType = "mail";
            }
        }

        // Don't need to worry about mail for destination because client doesn't allow
        // users to move items back into the mail stash.
        var toInventoryItems = pmcItems;
        var toType = "pmc";

        // Destination is scav inventory, update values
        if (request.ToOwner?.Id == scavProfile.Id)
        {
            toInventoryItems = scavProfile.Inventory.Items;
            toType = "scav";
        }

        // From and To types match, same inventory
        var movingToSameInventory = fromType == toType;

        return new OwnerInventoryItems{
            From = fromInventoryItems,
            To = toInventoryItems,
            SameInventory = movingToSameInventory,
            IsMail = fromType == "mail",
        };
    }

    /// <summary>
    /// Get a two-dimensional array to represent stash slots
    /// 0 value = free, 1 = taken
    /// </summary>
    /// <param name="pmcData">Player profile</param>
    /// <param name="sessionID">session id</param>
    /// <returns>2-dimensional array</returns>
    protected int[,] GetStashSlotMap(PmcData pmcData, string sessionID)
    {
        throw new NotImplementedException();
    }

    /// <summary>
    /// Get a blank two-dimensional array representation of a container
    /// </summary>
    /// <param name="containerTpl">Container to get data for</param>
    /// <returns>blank two-dimensional array</returns>
    public List<List<double>> GetContainerSlotMap(string containerTpl)
    {
        throw new NotImplementedException();
    }

    /// <summary>
    /// Get a two-dimensional array representation of the players sorting table
    /// </summary>
    /// <param name="pmcData">Player profile</param>
    /// <returns>two-dimensional array</returns>
    protected List<List<double>> GetSortingTableSlotMap(PmcData pmcData)
    {
        throw new NotImplementedException();
    }

    /// <summary>
    /// Get Players Stash Size
    /// </summary>
    /// <param name="sessionID">Players id</param>
    /// <returns>Dictionary of 2 values, horizontal and vertical stash size</returns>
    protected Dictionary<double, double> GetPlayerStashSize(string sessionID)
    {
        throw new NotImplementedException();
    }

    /// <summary>
    /// Get the players stash items tpl
    /// </summary>
    /// <param name="sessionID">Player id</param>
    /// <returns>Stash tpl</returns>
    protected string GetStashType(string sessionID)
    {
        throw new NotImplementedException();
    }

    /// <summary>
    /// Internal helper function to transfer an item + children from one profile to another.
    /// </summary>
    /// <param name="sourceItems">Inventory of the source (can be non-player)</param>
    /// <param name="toItems">Inventory of the destination</param>
    /// <param name="request">Move request</param>
    public void MoveItemToProfile(List<Item> sourceItems, List<Item> toItems, InventoryMoveRequestData request)
    {
        throw new NotImplementedException();
    }

    /// <summary>
    /// Internal helper function to move item within the same profile.
    /// </summary>
    /// <param name="pmcData">profile to edit</param>
    /// <param name="inventoryItems"></param>
    /// <param name="moveRequest">client move request</param>
    /// <param name="errorMessage"></param>
    /// <returns>True if move was successful</returns>
    public bool MoveItemInternal(
        PmcData pmcData,
        List<Item> inventoryItems,
        InventoryMoveRequestData moveRequest,
        out string errorMessage)
    {
        errorMessage = string.Empty;
        HandleCartridges(inventoryItems, moveRequest);

        // Find item we want to 'move'
        var matchingInventoryItem = inventoryItems.FirstOrDefault((item) => item.Id == moveRequest.Item);
        if (matchingInventoryItem is null)
        {
            var noMatchingItemMesage = $"Unable to move item: { moveRequest.Item}, cannot find in inventory";
            _logger.Error(noMatchingItemMesage);

            errorMessage = noMatchingItemMesage;
            return false;
        }

        _logger.Debug("${ moveRequest.Action} item: ${ moveRequest.item} from slotid: ${ matchingInventoryItem.slotId} to container: ${ moveRequest.to.container}");

        // Don't move shells from camora to cartridges (happens when loading shells into mts-255 revolver shotgun)
        if (matchingInventoryItem.SlotId?.Contains("camora_") is null && moveRequest.To.Container == "cartridges")
        {
            _logger.Warning(
                _localisationService.GetText("inventory-invalid_move_to_container",
                    new {
                        slotId = matchingInventoryItem.SlotId,
                        container = moveRequest.To.Container,
                    }));

            return true;
        }

        // Edit items details to match its new location
        matchingInventoryItem.ParentId = moveRequest.To.Id;
        matchingInventoryItem.SlotId = moveRequest.To.Container;

        // Ensure fastpanel dict updates when item was moved out of fast-panel-accessible slot
        UpdateFastPanelBinding(pmcData, matchingInventoryItem);

        // Item has location property, ensure its value is handled
        if (moveRequest.To.Location is not null) {
            matchingInventoryItem.Location = moveRequest.To.Location;
        } else
        {
            // Moved from slot with location to one without, clean up
            if (matchingInventoryItem.Location is not null)
            {
                matchingInventoryItem.Location = null;
            }
        }

        return true;
    }

    /// <summary>
    /// Update fast panel bindings when an item is moved into a container that doesn't allow quick slot access
    /// </summary>
    /// <param name="pmcData">Player profile</param>
    /// <param name="itemBeingMoved">item being moved</param>
    protected void UpdateFastPanelBinding(PmcData pmcData, Item itemBeingMoved)
    {
        // Find matching _id in fast panel
        
        if (!pmcData.Inventory.FastPanel.TryGetValue(itemBeingMoved.Id, out var fastPanelSlot))
        {
            return;
        }

        // Get moved items parent (should be container item was put into)
        var itemParent = pmcData.Inventory.Items.FirstOrDefault((item) => item.Id == itemBeingMoved.ParentId);
        if (itemParent is null)
        {
            return;
        }

        // Reset fast panel value if item was moved to a container other than pocket/rig (cant be used from fastpanel)
        List<string> slots = ["pockets", "tacticalvest"];
        var wasMovedToFastPanelAccessibleContainer = slots.Contains(
            itemParent?.SlotId?.ToLower() ?? "");
        if (!wasMovedToFastPanelAccessibleContainer)
        {
            pmcData.Inventory.FastPanel[fastPanelSlot[0].ToString()] = "";
        }
    }

    /// <summary>
    /// Internal helper function to handle cartridges in inventory if any of them exist.
    /// </summary>
    protected void HandleCartridges(List<Item> items, InventoryMoveRequestData request)
    {
        throw new NotImplementedException();
    }

    /// <summary>
    /// Get details for how a random loot container should be handled, max rewards, possible reward tpls
    /// </summary>
    /// <param name="itemTpl">Container being opened</param>
    /// <returns>Reward details</returns>
    public RewardDetails GetRandomLootContainerRewardDetails(string itemTpl)
    {
        throw new NotImplementedException();
    }

    /// <summary>
    /// Get inventory configuration
    /// </summary>
    /// <returns>Inventory configuration</returns>
    public InventoryConfig GetInventoryConfig()
    {
        throw new NotImplementedException();
    }

    /// <summary>
    /// Recursively checks if the given item is
    /// inside the stash, that is it has the stash as
    /// ancestor with slotId=hideout
    /// </summary>
    /// <param name="pmcData">Player profile</param>
    /// <param name="itemToCheck">Item to look for</param>
    /// <returns>True if item exists inside stash</returns>
    public bool IsItemInStash(PmcData pmcData, Item itemToCheck)
    {
        throw new NotImplementedException();
    }

    public void ValidateInventoryUsesMongoIds(List<Item> itemsToValidate)
    {
        throw new NotImplementedException();
    }

    /// <summary>
    /// Does the provided item have a root item with the provided id
    /// </summary>
    /// <param name="pmcData">Profile with items</param>
    /// <param name="item">Item to check</param>
    /// <param name="rootId">Root item id to check for</param>
    /// <returns>True when item has rootId, false when not</returns>
    public bool DoesItemHaveRootId(PmcData pmcData, Item item, string rootId)
    {
        throw new NotImplementedException();
    }
}

public class InventoryItemHash
{
    [JsonPropertyName("byItemId")]
    public Dictionary<string, Item> ByItemId { get; set; }

    [JsonPropertyName("byParentId")]
    public Dictionary<string, List<Item>> ByParentId { get; set; }
}