'use strict'

module.exports = function formatTap(t, context, msgs, validator) {
  for (const m of msgs) {
    switch (m.level) {
      case 'pass':
        const a = m.string
          ? ` [${m.string}]`
          : ''
        t.pass(`${m.id}: ${m.message}${a}`)
        break
      case 'skip':
        t.skip(`${m.id}: ${m.message}`)
        break
      case 'fail':
        onFail(context, m, validator, t)
        break
    }
  }
}

function onFail(context, m, validator, t) {
  switch (m.id) {
    case 'line-length':
    case 'title-length':
      lengthFail(context, m, validator, t)
      break
    case 'subsystem':
      subsystemFail(context, m, validator, t)
      break
    default:
      defaultFail(context, m, validator, t)
      break
  }
}

function lengthFail(context, m, validator, t) {
  const body = m.id === 'title-length'
    ? context.title
    : context.body
  t.fail(`${m.id}: ${m.message}`, {
    found: m.string.length
  , compare: '<='
  , wanted: m.maxLength
  , at: {
      line: m.line || 0
    , column: m.column || 0
    , body: body
    }
  })
}

function subsystemFail(context, m, validator, t) {
  t.fail(`${m.id}: ${m.message} (${m.string})`, {
    found: m.string
  , compare: 'indexOf() !== -1'
  , wanted: m.wanted || ''
  , at: {
      line: m.line || 0
    , column: m.column || 0
    , body: m.title
    }
  })
}

function defaultFail(context, m, validator, t) {
  t.fail(`${m.id}: ${m.message} (${m.string})`, {
    found: m.string
  , compare: Array.isArray(m.wanted) ? 'indexOf() !== -1' : '==='
  , wanted: m.wanted || ''
  , at: {
      line: m.line || 0
    , column: m.column || 0
    , body: context.body
    }
  })
}