import Session from '../../models/session.js'
import Quest from '../../models/quest.js'
import { createContainer } from '../../containers/docker.js'

export async function getSessionList(req, res) {
  try {
    const query = { user: req.user.id }
    if (req.query.quest_id) {
      query.quest = req.query.quest_id
    }
    query.status = req.query.status || 'active'
    const sessions = await Session.find(query)
    res.json(
      sessions.map(
        ({
          _id,
          user,
          quest,
          status,
          progress,
          createdAt,
          lastActivityAt,
        }) => ({
          _id,
          user,
          quest,
          status,
          progress,
          createdAt,
          lastActivityAt,
        })
      )
    )
  } catch (err) {
    console.error(err)
    res.status(500).json({ message: err.message })
  }
}

export async function createSession(req, res) {
  const quest = await Quest.findById(req.body.quest_id)
  if (!quest) {
    res.status(400).json({ message: 'Quest not found.' })
    return
  }

  try {
    const progress = quest.stages[0].id
    const container = await createContainer(
      `quest-${quest.id}-${req.user.username}-${Date.now()}`
    )
    const newSession = new Session({
      user: req.user,
      quest,
      progress,
      containerId: container.id,
    })

    const session = await newSession.save()
    res.status(201).json(session)
  } catch (err) {
    res.status(400).json({ message: err.message })
  }
}

export async function getSessionById(req, res) {
  try {
    const session = await Session.findOne({
      _id: req.params.id,
      user: req.user.id,
    })

    if (!session) {
      res.status(404).json({ message: 'Session not found.' })
      return
    }

    res.json(session)
  } catch (err) {
    res.status(500).json({ message: err.message })
  }
}

export async function deleteSessionById(req, res) {
  try {
    const session = await Session.findOneAndDelete({
      _id: req.params.id,
      user: req.user.id,
    })

    if (!session) {
      res.status(404).json({ message: 'Session not found.' })
      return
    }

    res.status(204).end()
  } catch (err) {
    res.status(500).json({ message: err.message })
  }
}