import { Request, Response, NextFunction } from 'express';
import { AuthenticatedRequest } from '@app/middleware/auth';
import { User } from '@prisma/client';
import {
  createMood,
  getMoodsByUserId,
  getMoodById,
  destroyMoodById
} from '@app/services/mood.service';

import { findUsersElligibleForPush } from '@app/services/user.service';
import { sendPushNotification } from '@app/lib/sendPushNotification';

import {
  CreateMoodSchema
} from '@app/schemas'

export const MoodsController = {
  create: async (req: AuthenticatedRequest, res: Response, next: NextFunction) => {
    try {
      const parsed = CreateMoodSchema.safeParse(req.body.mood);

      if (!parsed.success) {
        return res.status(400).json({
          errors: parsed.error!.issues
        });
      }

      const mood = await createMood(req.userId!, parsed.data);

      return res.status(201).json({ mood });
    } catch (err) {
      next(err);
    }
  },

  index: async (req: AuthenticatedRequest, res: Response, next: NextFunction) => {
    try {
      const result = await getMoodsByUserId(Number(req.userId), {
        limit: req.query.limit ? Number(req.query.limit) : undefined,
        page:  req.query.page  ? Number(req.query.page)  : undefined,
        from:  req.query.from  as string | undefined,
        to:    req.query.to    as string | undefined,
      });

      return res.status(200).json(
        result
      )
    } catch (err) {
      next(err);
    }
  },

  show: async (req: AuthenticatedRequest, res: Response, next: NextFunction) => {
    try {
      const mood = await getMoodById(Number(req.params.id));

      if (!mood) {
        return res.status(404).json({ errors: "Mood was not found" });
      }

      return res.status(200).json(
        mood
      );
    } catch (err) {
      next(err);
    }
  },

  destroy: async (req: AuthenticatedRequest, res: Response, next: NextFunction) => {
    try {
      const result = await destroyMoodById(req.userId!, Number(req.params.id!));

      return res.status(200).json({})
    } catch (err) {
      next(err);
    }
  },

  sendNotification: async (req: Request, res: Response, next: NextFunction) => {
    try {
      const users = await findUsersElligibleForPush();

      if (users) {
        await Promise.all(
          users
            .filter((user: User) => user.pushToken)
            .map((user: User) =>
              sendPushNotification({
                token: user.pushToken!,
                title: 'Como você está?',
                body: 'Adicione mais registros de humor.',
                data: { screen: 'notifications' },
              })
            )
        );
      }

      return res.status(200).json(users)
    } catch (err) {
      next(err);
    }
  }
};