import { inject, injectable } from "tsyringe";

import { ItemHelper } from "@spt-aki/helpers/ItemHelper";
import { NotificationSendHelper } from "@spt-aki/helpers/NotificationSendHelper";
import { NotifierHelper } from "@spt-aki/helpers/NotifierHelper";
import { Item } from "@spt-aki/models/eft/common/tables/IItem";
import {
    Dialogue,
    Message,
    MessageContent,
    MessageItems,
    MessagePreview,
} from "@spt-aki/models/eft/profile/IAkiProfile";
import { MessageType } from "@spt-aki/models/enums/MessageType";
import { ILogger } from "@spt-aki/models/spt/utils/ILogger";
import { DatabaseServer } from "@spt-aki/servers/DatabaseServer";
import { SaveServer } from "@spt-aki/servers/SaveServer";
import { LocalisationService } from "@spt-aki/services/LocalisationService";
import { HashUtil } from "@spt-aki/utils/HashUtil";
import { TimeUtil } from "@spt-aki/utils/TimeUtil";

@injectable()
export class DialogueHelper
{
    constructor(
        @inject("WinstonLogger") protected logger: ILogger,
        @inject("HashUtil") protected hashUtil: HashUtil,
        @inject("SaveServer") protected saveServer: SaveServer,
        @inject("DatabaseServer") protected databaseServer: DatabaseServer,
        @inject("NotifierHelper") protected notifierHelper: NotifierHelper,
        @inject("NotificationSendHelper") protected notificationSendHelper: NotificationSendHelper,
        @inject("LocalisationService") protected localisationService: LocalisationService,
        @inject("ItemHelper") protected itemHelper: ItemHelper,
    )
    {}

    /**
     * @deprecated Use MailSendService.sendMessage() or helpers
     */
    public createMessageContext(templateId: string, messageType: MessageType, maxStoreTime = null): MessageContent
    {
        const result: MessageContent = { templateId: templateId, type: messageType };

        if (maxStoreTime)
        {
            result.maxStorageTime = maxStoreTime * TimeUtil.oneHourAsSeconds;
        }

        return result;
    }

    /**
     * @deprecated Use MailSendService.sendMessage() or helpers
     */
    public addDialogueMessage(
        dialogueID: string,
        messageContent: MessageContent,
        sessionID: string,
        rewards: Item[] = [],
        messageType = MessageType.NPC_TRADER,
    ): void
    {
        const dialogueData = this.saveServer.getProfile(sessionID).dialogues;
        const isNewDialogue = !(dialogueID in dialogueData);
        let dialogue: Dialogue = dialogueData[dialogueID];

        if (isNewDialogue)
        {
            dialogue = { _id: dialogueID, type: messageType, messages: [], pinned: false, new: 0, attachmentsNew: 0 };

            dialogueData[dialogueID] = dialogue;
        }

        dialogue.new += 1;

        // Generate item stash if we have rewards.
        let items: MessageItems = {};

        if (rewards.length > 0)
        {
            const stashId = this.hashUtil.generate();
            items = { stash: stashId, data: [] };

            rewards = this.itemHelper.replaceIDs(null, rewards);
            for (const reward of rewards)
            {
                if (!("slotId" in reward) || reward.slotId === "hideout")
                {
                    reward.parentId = stashId;
                    reward.slotId = "main";
                }

                const itemTemplate = this.databaseServer.getTables().templates.items[reward._tpl];
                if (!itemTemplate)
                {
                    // Can happen when modded items are insured + mod is removed
                    this.logger.error(
                        this.localisationService.getText("dialog-missing_item_template", {
                            tpl: reward._tpl,
                            type: MessageType[messageContent.type],
                        }),
                    );

                    continue;
                }

                items.data.push(reward);

                if ("StackSlots" in itemTemplate._props)
                {
                    const stackSlotItems = this.itemHelper.generateItemsFromStackSlot(itemTemplate, reward._id);
                    for (const itemToAdd of stackSlotItems)
                    {
                        items.data.push(itemToAdd);
                    }
                }
            }

            if (items.data.length === 0)
            {
                delete items.data;
            }

            dialogue.attachmentsNew += 1;
        }

        const message: Message = {
            _id: this.hashUtil.generate(),
            uid: dialogueID,
            type: messageContent.type,
            dt: Math.round(Date.now() / 1000),
            text: messageContent.text ?? "",
            templateId: messageContent.templateId,
            hasRewards: items.data?.length > 0,
            rewardCollected: false,
            items: items,
            maxStorageTime: messageContent.maxStorageTime,
            systemData: messageContent.systemData ? messageContent.systemData : undefined,
            profileChangeEvents: (messageContent.profileChangeEvents?.length === 0)
                ? messageContent.profileChangeEvents
                : undefined,
        };

        if (!message.templateId)
        {
            delete message.templateId;
        }

        dialogue.messages.push(message);

        // Offer Sold notifications are now separate from the main notification
        if (messageContent.type === MessageType.FLEAMARKET_MESSAGE && messageContent.ragfair)
        {
            const offerSoldMessage = this.notifierHelper.createRagfairOfferSoldNotification(
                message,
                messageContent.ragfair,
            );
            this.notificationSendHelper.sendMessage(sessionID, offerSoldMessage);
            message.type = MessageType.MESSAGE_WITH_ITEMS; // Should prevent getting the same notification popup twice
        }

        const notificationMessage = this.notifierHelper.createNewMessageNotification(message);
        this.notificationSendHelper.sendMessage(sessionID, notificationMessage);
    }

    /**
     * Get the preview contents of the last message in a dialogue.
     * @param dialogue
     * @returns MessagePreview
     */
    public getMessagePreview(dialogue: Dialogue): MessagePreview
    {
        // The last message of the dialogue should be shown on the preview.
        const message = dialogue.messages[dialogue.messages.length - 1];
        const result: MessagePreview = {
            dt: message?.dt,
            type: message?.type,
            templateId: message?.templateId,
            uid: dialogue._id,
        };

        if (message?.text)
        {
            result.text = message.text;
        }

        if (message?.systemData)
        {
            result.systemData = message.systemData;
        }

        return result;
    }

    /**
     * Get the item contents for a particular message.
     * @param messageID
     * @param sessionID
     * @param itemId Item being moved to inventory
     * @returns
     */
    public getMessageItemContents(messageID: string, sessionID: string, itemId: string): Item[]
    {
        const dialogueData = this.saveServer.getProfile(sessionID).dialogues;
        for (const dialogueId in dialogueData)
        {
            const message = dialogueData[dialogueId].messages.find((x) => x._id === messageID);
            if (!message)
            {
                continue;
            }

            if (message._id === messageID)
            {
                const attachmentsNew = this.saveServer.getProfile(sessionID).dialogues[dialogueId].attachmentsNew;
                if (attachmentsNew > 0)
                {
                    this.saveServer.getProfile(sessionID).dialogues[dialogueId].attachmentsNew = attachmentsNew - 1;
                }

                // Check reward count when item being moved isn't in reward list
                // If count is 0, it means after this move occurs the reward array will be empty and all rewards collected
                if (!message.items.data)
                {
                    message.items.data = [];
                }

                const rewardItemCount = message.items.data?.filter((item) => item._id !== itemId);
                if (rewardItemCount.length === 0)
                {
                    message.rewardCollected = true;
                    message.hasRewards = false;
                }

                return message.items.data;
            }
        }

        return [];
    }

    /**
     * Get the dialogs dictionary for a profile, create if doesnt exist
     * @param sessionId Session/player id
     * @returns Dialog dictionary
     */
    public getDialogsForProfile(sessionId: string): Record<string, Dialogue>
    {
        const profile = this.saveServer.getProfile(sessionId);
        if (!profile.dialogues)
        {
            profile.dialogues = {};
        }

        return profile.dialogues;
    }
}