import { createLogger } from '@sim/logger'
import { type NextRequest, NextResponse } from 'next/server'
import { upsertTableRowContract } from '@/lib/api/contracts/tables'
import { parseRequest } from '@/lib/api/server'
import { isZodError, validationErrorResponse } from '@/lib/api/server/validation'
import { checkSessionOrInternalAuth } from '@/lib/auth/hybrid'
import { generateRequestId } from '@/lib/core/utils/request'
import { withRouteHandler } from '@/lib/core/utils/with-route-handler'
import type { RowData, TableSchema } from '@/lib/table'
import { upsertRow } from '@/lib/table'
import { rowWireTranslators } from '@/app/api/table/row-wire'
import { accessError, checkAccess, rowWriteErrorResponse } from '@/app/api/table/utils'

const logger = createLogger('TableUpsertAPI')

interface UpsertRouteParams {
  params: Promise<{ tableId: string }>
}

/** POST /api/table/[tableId]/rows/upsert - Inserts or updates based on unique columns. */
export const POST = withRouteHandler(async (request: NextRequest, context: UpsertRouteParams) => {
  const requestId = generateRequestId()
  const { tableId } = await context.params

  try {
    const authResult = await checkSessionOrInternalAuth(request, { requireWorkflowId: false })
    if (!authResult.success || !authResult.userId) {
      return NextResponse.json({ error: 'Authentication required' }, { status: 401 })
    }

    const validation = await parseRequest(upsertTableRowContract, request, context)
    if (!validation.success) return validation.response
    const validated = validation.data.body

    const result = await checkAccess(tableId, authResult.userId, 'write')
    if (!result.ok) return accessError(result, requestId, tableId)

    const { table } = result

    if (table.workspaceId !== validated.workspaceId) {
      return NextResponse.json({ error: 'Invalid workspace ID' }, { status: 400 })
    }

    const wire = rowWireTranslators(authResult.authType, table.schema as TableSchema)
    // conflictTarget passes through untranslated — upsertRow resolves it id-or-name.
    const upsertResult = await upsertRow(
      {
        tableId,
        workspaceId: validated.workspaceId,
        data: wire.dataIn(validated.data as RowData),
        userId: authResult.userId,
        conflictTarget: validated.conflictTarget,
      },
      table,
      requestId
    )

    return NextResponse.json({
      success: true,
      data: {
        row: {
          id: upsertResult.row.id,
          data: wire.dataOut(upsertResult.row.data),
          createdAt:
            upsertResult.row.createdAt instanceof Date
              ? upsertResult.row.createdAt.toISOString()
              : upsertResult.row.createdAt,
          updatedAt:
            upsertResult.row.updatedAt instanceof Date
              ? upsertResult.row.updatedAt.toISOString()
              : upsertResult.row.updatedAt,
        },
        operation: upsertResult.operation,
        message: `Row ${upsertResult.operation === 'update' ? 'updated' : 'inserted'} successfully`,
      },
    })
  } catch (error) {
    if (isZodError(error)) {
      return validationErrorResponse(error)
    }

    const response = rowWriteErrorResponse(error)
    if (response) return response

    logger.error(`[${requestId}] Error upserting row:`, error)
    return NextResponse.json({ error: 'Failed to upsert row' }, { status: 500 })
  }
})