import _ from 'lodash'
import type { FastifyPluginCallbackZod } from 'fastify-type-provider-zod'
import { sql } from 'kysely'

const balanceRoutes: FastifyPluginCallbackZod = (fastify, _, done) => {
  const { db } = fastify

  fastify.route({
    url: '/',
    method: 'GET',
    async handler() {
      const financialYears = await db.selectFrom('financialYear').select('year').orderBy('year').execute()

      return db
        .selectFrom('accountBalance as ab')
        .innerJoin('financialYear as fy', 'fy.id', 'ab.financialYearId')
        .innerJoin('account as a', 'a.number', 'ab.accountNumber')
        .select(['ab.accountNumber', 'a.description'])
        .select(
          financialYears.map((fy) =>
            sql`SUM(CASE WHEN fy.year = ${fy.year} THEN ab."out" ELSE 0 END)`.as(fy.year.toString()),
          ),
        )
        .groupBy(['ab.accountNumber', 'a.description'])
        .orderBy('ab.accountNumber')
        .where('ab.accountNumber', '<', 3000)
        .execute()
    },
  })

  done()
}

export default balanceRoutes