import {
  maxSelectedSkillClubPercent,
  moduleSkillSummaryKey,
  summaryHasSkill,
} from './skillProfileListHelpers'

export const EMPTY_TRAINING_MODULE_FILTERS = {
  query: '',
  skillIds: [],
  skillSort: 'title',
  skillMinClubPercent: 0,
  skillDisplayLimit: 12,
}

export function hasActiveTrainingModuleFilters(filters = {}) {
  const f = { ...EMPTY_TRAINING_MODULE_FILTERS, ...filters }
  if ((f.query || '').trim()) return true
  if ((f.skillIds || []).length) return true
  if (Number(f.skillMinClubPercent) > 0) return true
  if (f.skillSort === 'skill_strength' && (f.skillIds || []).length) return true
  return false
}

export function filterTrainingModules(rows, filters = {}, skillSummaries = null) {
  const f = { ...EMPTY_TRAINING_MODULE_FILTERS, ...filters }
  const q = (f.query || '').trim().toLowerCase()
  const skillIds = f.skillIds || []
  const minClubPct = Number(f.skillMinClubPercent) || 0

  let list = (rows || []).filter((r) => {
    if (q) {
      const blob = [r.title, r.summary].filter(Boolean).join(' ').toLowerCase()
      if (!blob.includes(q)) return false
    }
    return true
  })

  if (skillIds.length && skillSummaries) {
    list = list.filter((r) => {
      const summary = skillSummaries[moduleSkillSummaryKey(r.id)]
      if (!summary) return false
      return skillIds.some((sid) => summaryHasSkill(summary, sid, minClubPct))
    })
  }

  if (f.skillSort === 'skill_strength' && skillIds.length && skillSummaries) {
    list = [...list].sort((a, b) => {
      const sa = skillSummaries[moduleSkillSummaryKey(a.id)]
      const sb = skillSummaries[moduleSkillSummaryKey(b.id)]
      const pa = maxSelectedSkillClubPercent(sa, skillIds) ?? -1
      const pb = maxSelectedSkillClubPercent(sb, skillIds) ?? -1
      return pb - pa
    })
  }

  return list
}