import { Request, Response } from "express";
import { Types } from "mongoose";
import { Bot, BotKey } from "../../models";
import { createBot } from "../../helpers/bot";

interface BotKey {
    encryptedKey: string;
    nonce: string;
}

/**
 * Return bot for workspace with id [workspaceId]. If a workspace bot doesn't exist,
 * then create and return a new bot.
 * @param req
 * @param res
 * @returns
 */
export const getBotByWorkspaceId = async (req: Request, res: Response) => {
  const { workspaceId } = req.params;

  let bot = await Bot.findOne({
      workspace: workspaceId,
  });
  
  if (!bot) {
      // case: bot doesn't exist for workspace with id [workspaceId]
      // -> create a new bot and return it
      bot = await createBot({
          name: "Infisical Bot",
          workspaceId: new Types.ObjectId(workspaceId),
      });
  }
    
  return res.status(200).send({
      bot,
  });
};

/**
 * Return bot with id [req.bot._id] with active state set to [isActive].
 * @param req
 * @param res
 * @returns
 */
export const setBotActiveState = async (req: Request, res: Response) => {
    const { isActive, botKey }: { isActive: boolean, botKey: BotKey } = req.body;
    
    if (isActive) {
        // bot state set to active -> share workspace key with bot
        if (!botKey?.encryptedKey || !botKey?.nonce) {
            return res.status(400).send({
                message: "Failed to set bot state to active - missing bot key",
            });
        }
        
        await BotKey.findOneAndUpdate({
            workspace: req.bot.workspace,
        }, {
            encryptedKey: botKey.encryptedKey,
            nonce: botKey.nonce,
            sender: req.user._id,
            bot: req.bot._id,
            workspace: req.bot.workspace,
        }, {
            upsert: true,
            new: true,
        });
    } else {
        // case: bot state set to inactive -> delete bot's workspace key
        await BotKey.deleteOne({
            bot: req.bot._id,
        });
    }

    const bot = await Bot.findOneAndUpdate({
        _id: req.bot._id,
    }, {
        isActive,
    }, {
        new: true,
    });
    
    if (!bot) throw new Error("Failed to update bot active state");
    
    return res.status(200).send({
        bot,
    });
};