import _ from 'lodash'
import { type FastifyPluginCallbackTypebox } from '@fastify/type-provider-typebox'
import knex from '../../lib/knex.ts'

const balanceRoutes: FastifyPluginCallbackTypebox = (fastify, _, done) => {
  fastify.route({
    url: '/',
    method: 'GET',
    async handler() {
      const financialYears = await knex('financialYear').select('*').orderBy('year', 'asc')

      return knex('accountBalance AS ab')
        .select(
          'ab.accountNumber',
          'a.description',
          Object.fromEntries(
            financialYears.map((fy) => [
              fy.year,
              knex.raw(`SUM(CASE WHEN fy.year = ${fy.year} THEN ab."out" ELSE 0 END)`),
            ]),
          ),
        )
        .innerJoin('financialYear AS fy', 'fy.id', 'ab.financialYearId')
        .innerJoin('account AS a', function () {
          this.on('ab.accountNumber', '=', 'a.number')
        })
        .groupBy('ab.accountNumber', 'a.description')
        .where('ab.accountNumber', '<', 3000)
        .orderBy('ab.accountNumber')
    },
  })

  done()
}

export default balanceRoutes