/**
 * Character cells and labels in the viewer's payload.
 *
 * Two rules the recorded response fixes, both of which look like bugs from the
 * inside and are parity from the outside.
 */
const test = require('node:test')
const assert = require('node:assert')
const fs = require('node:fs')
const path = require('node:path')

const { seededEstate, runService } = require('./harness')

function viewOf(estate, libds) {
  const body = JSON.parse(
    runService(estate, 'public/viewdata', {
      tableName: 'SASControlTable',
      rows: [{ LIBDS: libds, FILTER_RK: -1 }]
    })
  )
  assert.equal(body.sasjsAbort, undefined)
  return body
}

test('a character cell keeps a leading blank and loses only the padding', () => {
  const estate = seededEstate({ demo: false })
  const table = {
    columns: [{ name: 'C', type: 'char', length: 10 }],
    rows: [{ C: ' ABC' }, { C: 'ABC   ' }, { C: '   ' }]
  }
  fs.writeFileSync(
    path.join(estate.appDir, 'data', 'DC_JSLIB', 'mpe_x_cells.json'),
    JSON.stringify(table)
  )

  const rows = viewOf(estate, 'DC_JSLIB.MPE_X_CELLS').viewdata

  // a leading blank is part of the value, and the viewer shows it
  assert.equal(rows[0].C, ' ABC')
  // trailing blanks are the width SAS pads to
  assert.equal(rows[1].C, 'ABC')
  // an all-blank cell is SAS missing
  assert.equal(rows[2].C, ' ')
})

test('cols and $viewdata report the labels the estate reports', () => {
  // the recorded response has cols[].LABEL for DSN as the data dictionary's
  // business label and $viewdata.vars.DSN.label as the physical label - two
  // members, two answers, and the estate is the authority
  const body = viewOf(seededEstate({ demo: false }), 'DC_JSLIB.MPE_TABLES')

  const dsn = body.cols.find((c) => c.NAME === 'DSN')
  assert.equal(dsn.LABEL, 'Dataset Name to be edited')
  assert.equal(body.$viewdata.vars.DSN.label, 'DSN')
})