import { requireAuth } from '~/server/utils/auth'
import { saveCanvasToGitea } from '~/server/utils/giteaApi'
import { canvases, userGroups } from '~/server/utils/db'

export default defineEventHandler(async (event) => {
  const user = requireAuth(event)
  const body = await readBody(event)
  const { canvasId, type } = body

  if (!canvasId || !type) {
    throw createError({ statusCode: 400, message: 'Canvas ID and repository type are required' })
  }

  // Check if canvas exists and user has access
  const canvas = canvases.get(canvasId)
  if (!canvas) {
    throw createError({ statusCode: 404, message: 'Canvas not found' })
  }

  if (canvas.ownerId !== user.id && !canvas.isPublic) {
    // Check group access
    if (canvas.groupId) {
      const membership = Array.from(userGroups.values()).find(
        m => m.userId === user.id && m.groupId === canvas.groupId
      )
      if (!membership) {
        throw createError({ statusCode: 403, message: 'Access denied' })
      }
    } else {
      throw createError({ statusCode: 403, message: 'Access denied' })
    }
  }

  try {
    // Initial save to Gitea creates the canvas file in the repo
    const ok = await saveCanvasToGitea(canvasId, canvas, `Init canvas ${canvasId}`)
    return {
      success: ok,
      message: ok
        ? `Canvas ${canvasId} initialized in Gitea`
        : `Failed to initialize canvas ${canvasId} in Gitea`
    }
  } catch (error) {
    console.error('Failed to initialize canvas in Gitea:', error)
    throw createError({ statusCode: 500, message: 'Failed to initialize canvas in Gitea' })
  }
})