import type {
  IntakeConfig,
  FilterConfig,
  EvaluationConfig,
  SelectionConfig,
  LiveFinalConfig,
  ResultsConfig,
  WizardStageConfig,
  WizardTrackConfig,
  WizardState,
} from '@/types/pipeline-wizard'

export function defaultIntakeConfig(): IntakeConfig {
  return {
    submissionWindowEnabled: true,
    lateSubmissionPolicy: 'flag',
    lateGraceHours: 24,
    fileRequirements: [
      {
        name: 'Executive Summary',
        description: 'A PDF executive summary of your project',
        acceptedMimeTypes: ['application/pdf'],
        maxSizeMB: 50,
        isRequired: true,
      },
    ],
  }
}

export function defaultFilterConfig(): FilterConfig {
  return {
    rules: [],
    aiRubricEnabled: false,
    aiConfidenceThresholds: { high: 0.85, medium: 0.6, low: 0.4 },
    manualQueueEnabled: true,
  }
}

export function defaultEvaluationConfig(): EvaluationConfig {
  return {
    requiredReviews: 3,
    maxLoadPerJuror: 20,
    minLoadPerJuror: 5,
    availabilityWeighting: true,
    overflowPolicy: 'queue',
  }
}

export function defaultSelectionConfig(): SelectionConfig {
  return {
    finalistCount: undefined,
    rankingMethod: 'score_average',
    tieBreaker: 'admin_decides',
  }
}

export function defaultLiveConfig(): LiveFinalConfig {
  return {
    juryVotingEnabled: true,
    audienceVotingEnabled: false,
    audienceVoteWeight: 0,
    cohortSetupMode: 'manual',
    revealPolicy: 'ceremony',
  }
}

export function defaultResultsConfig(): ResultsConfig {
  return {
    publicationMode: 'manual',
    showDetailedScores: false,
    showRankings: true,
  }
}

function slugify(name: string): string {
  return name
    .toLowerCase()
    .replace(/[^a-z0-9]+/g, '-')
    .replace(/^-|-$/g, '')
}

export function defaultMainTrackStages(): WizardStageConfig[] {
  return [
    { name: 'Intake', slug: 'intake', stageType: 'INTAKE', sortOrder: 0, configJson: defaultIntakeConfig() as unknown as Record<string, unknown> },
    { name: 'Filtering', slug: 'filtering', stageType: 'FILTER', sortOrder: 1, configJson: defaultFilterConfig() as unknown as Record<string, unknown> },
    { name: 'Evaluation', slug: 'evaluation', stageType: 'EVALUATION', sortOrder: 2, configJson: defaultEvaluationConfig() as unknown as Record<string, unknown> },
    { name: 'Selection', slug: 'selection', stageType: 'SELECTION', sortOrder: 3, configJson: defaultSelectionConfig() as unknown as Record<string, unknown> },
    { name: 'Live Finals', slug: 'live-finals', stageType: 'LIVE_FINAL', sortOrder: 4, configJson: defaultLiveConfig() as unknown as Record<string, unknown> },
    { name: 'Results', slug: 'results', stageType: 'RESULTS', sortOrder: 5, configJson: defaultResultsConfig() as unknown as Record<string, unknown> },
  ]
}

export function defaultMainTrack(): WizardTrackConfig {
  return {
    name: 'Main Competition',
    slug: 'main-competition',
    kind: 'MAIN',
    sortOrder: 0,
    stages: defaultMainTrackStages(),
  }
}

export function defaultAwardTrack(index: number): WizardTrackConfig {
  const name = `Award ${index + 1}`
  return {
    name,
    slug: slugify(name),
    kind: 'AWARD',
    sortOrder: index + 1,
    routingModeDefault: 'PARALLEL',
    decisionMode: 'JURY_VOTE',
    stages: [
      { name: 'Evaluation', slug: 'evaluation', stageType: 'EVALUATION', sortOrder: 0, configJson: defaultEvaluationConfig() as unknown as Record<string, unknown> },
      { name: 'Results', slug: 'results', stageType: 'RESULTS', sortOrder: 1, configJson: defaultResultsConfig() as unknown as Record<string, unknown> },
    ],
    awardConfig: { name, scoringMode: 'PICK_WINNER' },
  }
}

export function defaultNotificationConfig(): Record<string, boolean> {
  return {
    'stage.transitioned': true,
    'filtering.completed': true,
    'assignment.generated': true,
    'routing.executed': true,
    'live.cursor.updated': true,
    'cohort.window.changed': true,
    'decision.overridden': true,
    'award.winner.finalized': true,
  }
}

export function defaultWizardState(programId: string): WizardState {
  return {
    name: '',
    slug: '',
    programId,
    settingsJson: {},
    tracks: [defaultMainTrack()],
    notificationConfig: defaultNotificationConfig(),
    overridePolicy: { allowedRoles: ['SUPER_ADMIN', 'PROGRAM_ADMIN'] },
  }
}