import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query'
import { useEffect, useRef } from 'react'
import axios from 'axios'
import type {
  Quote, GeoNews, GeoRiskScore, PatternMatch, TradeIdea,
  EconomicEvent, HistoricalCandle, BacktestResult
} from '../types'

export const api = axios.create({ baseURL: '/api' })

// ── Market ────────────────────────────────────────────────────────────────────
export const useAllQuotes = () =>
  useQuery<Record<string, Quote[]>>({
    queryKey: ['quotes'],
    queryFn: () => api.get('/market/quotes').then(r => r.data),
    refetchInterval: 60_000,
  })

export const useHistory = (symbol: string, period = '1y', interval = '1d') =>
  useQuery<HistoricalCandle[]>({
    queryKey: ['history', symbol, period, interval],
    queryFn: () =>
      api.get(`/market/history/${encodeURIComponent(symbol)}`, { params: { period, interval } }).then(r => r.data),
    enabled: !!symbol,
  })

// ── Geo ───────────────────────────────────────────────────────────────────────
export const useGeoNews = () =>
  useQuery<GeoNews[]>({
    queryKey: ['geo-news'],
    queryFn: () => api.get('/geo/news').then(r => r.data),
    refetchInterval: 3_600_000,
  })

export const useGeoRiskScore = () =>
  useQuery<GeoRiskScore>({
    queryKey: ['geo-risk-score'],
    queryFn: () => api.get('/geo/risk-score').then(r => r.data),
    refetchInterval: 3_600_000,
  })

export const usePatternMatches = () =>
  useQuery<PatternMatch[]>({
    queryKey: ['pattern-matches'],
    queryFn: () => api.get('/geo/pattern-matches').then(r => r.data),
  })

export const usePatternRelevance = (days: number) =>
  useQuery({
    queryKey: ['pattern-relevance', days],
    queryFn: () => api.get('/geo/pattern-relevance', { params: { days } }).then(r => r.data),
    staleTime: 5 * 60_000,
  })

export const useTradeIdeas = () =>
  useQuery<TradeIdea[]>({
    queryKey: ['trade-ideas'],
    queryFn: () => api.get('/geo/trade-ideas').then(r => r.data),
  })

export const useCalendar = () =>
  useQuery<EconomicEvent[]>({
    queryKey: ['calendar'],
    queryFn: () => api.get('/geo/calendar').then(r => r.data),
  })

// ── Options ───────────────────────────────────────────────────────────────────
export const useIvSurface = (symbol: string) =>
  useQuery({
    queryKey: ['iv-surface', symbol],
    queryFn: () => api.get('/options/iv-surface', { params: { symbol } }).then(r => r.data),
    enabled: !!symbol,
  })

export const usePnlCurve = (params: {
  symbol: string; strike: number; expiry_days: number
  option_type: string; quantity: number; premium_paid: number
}) =>
  useQuery({
    queryKey: ['pnl-curve', params],
    queryFn: () => api.get('/options/pnl-curve', { params }).then(r => r.data),
    enabled: !!params.symbol && !!params.strike && !!params.premium_paid,
  })

// ── Backtest ──────────────────────────────────────────────────────────────────
export const useBacktest = () =>
  useMutation<BacktestResult, Error, Record<string, unknown>>({
    mutationFn: (data) => api.post('/backtest/run', data).then(r => r.data),
  })

// ── AI ────────────────────────────────────────────────────────────────────────
export const useAiStatus = () =>
  useQuery({
    queryKey: ['ai-status'],
    queryFn: () => api.get('/ai/status').then(r => r.data),
    refetchInterval: 30_000,
  })

export const useAiTopIdeas = () =>
  useQuery({
    queryKey: ['ai-top-ideas'],
    queryFn: () => api.get('/ai/top-ideas').then(r => r.data),
    enabled: false,
    retry: false,
  })

export const useAnalyzeSpeech = () =>
  useMutation({
    mutationFn: (data: { text: string; speaker?: string }) =>
      api.post('/ai/analyze-speech', data).then(r => r.data),
  })

export const useEvaluatePattern = () =>
  useMutation({
    mutationFn: (pattern: Record<string, unknown>) =>
      api.post('/ai/evaluate-pattern', { pattern }).then(r => r.data),
  })

export const useSuggestPattern = () =>
  useMutation({
    mutationFn: (context: string) =>
      api.post('/ai/suggest-pattern', { context }).then(r => r.data),
  })

export const useAiTopIdeasRefetch = () =>
  useMutation({
    mutationFn: () => api.get('/ai/top-ideas').then(r => r.data),
  })

// ── Portfolio ─────────────────────────────────────────────────────────────────
export const usePortfolioPositions = (status = 'open') =>
  useQuery({
    queryKey: ['portfolio', status],
    queryFn: () => api.get('/portfolio/positions', { params: { status } }).then(r => r.data),
    refetchInterval: status === 'open' ? 60_000 : false,
  })

export const usePortfolioSummary = () =>
  useQuery({
    queryKey: ['portfolio-summary'],
    queryFn: () => api.get('/portfolio/summary').then(r => r.data),
    refetchInterval: 60_000,
  })

export const usePnlHistory = () =>
  useQuery({
    queryKey: ['pnl-history'],
    queryFn: () => api.get('/portfolio/pnl-history').then(r => r.data),
  })

export const useAddPosition = () => {
  const qc = useQueryClient()
  return useMutation({
    mutationFn: (data: Record<string, unknown>) =>
      api.post('/portfolio/add', data).then(r => r.data),
    onSuccess: () => {
      qc.invalidateQueries({ queryKey: ['portfolio'] })
      qc.invalidateQueries({ queryKey: ['portfolio-summary'] })
    },
  })
}

export const useClosePosition = () => {
  const qc = useQueryClient()
  return useMutation({
    mutationFn: ({ id, close_value }: { id: string; close_value: number }) =>
      api.post(`/portfolio/close/${id}`, { close_value }).then(r => r.data),
    onSuccess: () => {
      qc.invalidateQueries({ queryKey: ['portfolio'] })
      qc.invalidateQueries({ queryKey: ['portfolio-summary'] })
      qc.invalidateQueries({ queryKey: ['pnl-history'] })
    },
  })
}

// ── Config ────────────────────────────────────────────────────────────────────
export const useConfig = () =>
  useQuery({
    queryKey: ['config'],
    queryFn: () => api.get('/config/').then(r => r.data),
  })

export const useSources = () =>
  useQuery({
    queryKey: ['sources'],
    queryFn: () => api.get('/config/sources').then(r => r.data),
  })

export const useUpdateSources = () => {
  const qc = useQueryClient()
  return useMutation({
    mutationFn: (sources: Record<string, unknown>) =>
      api.put('/config/sources', { sources }).then(r => r.data),
    onSuccess: () => qc.invalidateQueries({ queryKey: ['sources'] }),
  })
}

export const useUpdateApiKeys = () => {
  const qc = useQueryClient()
  return useMutation({
    mutationFn: (keys: Record<string, string>) =>
      api.put('/config/api-keys', keys).then(r => r.data),
    onSuccess: () => {
      qc.invalidateQueries({ queryKey: ['config'] })
      qc.invalidateQueries({ queryKey: ['ai-status'] })
    },
  })
}

// ── AI Pattern Scoring ────────────────────────────────────────────────────────
export const useScorePatterns = () => {
  const qc = useQueryClient()
  return useMutation({
    mutationFn: (params: { top_n?: number; category_filter?: string; template?: string }) =>
      api.post('/ai/score-patterns', params).then(r => r.data),
    onSuccess: () => qc.invalidateQueries({ queryKey: ['last-scores'] }),
  })
}

export const useLastScores = () =>
  useQuery({
    queryKey: ['last-scores'],
    queryFn: () => api.get('/ai/last-scores').then(r => r.data),
    staleTime: Infinity,
  })

export const useSuggestNewPatterns = () =>
  useMutation({
    mutationFn: () => api.post('/ai/suggest-new-patterns').then(r => r.data),
  })

export const useAnalysisConfig = () =>
  useQuery({
    queryKey: ['analysis-config'],
    queryFn: () => api.get('/config/analysis').then(r => r.data),
  })

export const useSaveAnalysisConfig = () => {
  const qc = useQueryClient()
  return useMutation({
    mutationFn: (cfg: { top_n?: number; category_filter?: string; template?: string }) =>
      api.put('/config/analysis', cfg).then(r => r.data),
    onSuccess: () => qc.invalidateQueries({ queryKey: ['analysis-config'] }),
  })
}

// ── Patterns ──────────────────────────────────────────────────────────────────
export const useAllPatterns = () =>
  useQuery({
    queryKey: ['all-patterns'],
    queryFn: () => api.get('/patterns/all').then(r => r.data),
  })

export const usePatternSimilarity = () =>
  useQuery({
    queryKey: ['pattern-similarity'],
    queryFn: () => api.get('/ai/pattern-similarity').then(r => r.data),
    staleTime: 5 * 60_000,
  })

export const useMacroRegime = () => {
  const qc = useQueryClient()
  const query = useQuery({
    queryKey: ['macro-regime'],
    queryFn: () => api.get('/market/macro-regime').then(r => r.data),
    staleTime: 10 * 60 * 1000,
    refetchInterval: 15 * 60 * 1000,
  })
  const forceRefetch = async () => {
    const fresh = await api.get('/market/macro-regime?force=true').then(r => r.data)
    qc.setQueryData(['macro-regime'], fresh)
    return fresh
  }
  return { ...query, forceRefetch }
}

export const useSavePattern = () => {
  const qc = useQueryClient()
  return useMutation({
    mutationFn: (pattern: Record<string, unknown>) =>
      api.post('/patterns/custom', pattern).then(r => r.data),
    onSuccess: () => qc.invalidateQueries({ queryKey: ['all-patterns'] }),
  })
}

export const useDeletePattern = () => {
  const qc = useQueryClient()
  return useMutation({
    mutationFn: (id: string) =>
      api.delete(`/patterns/custom/${id}`).then(r => r.data),
    onSuccess: () => qc.invalidateQueries({ queryKey: ['all-patterns'] }),
  })
}

export const useTogglePattern = () => {
  const qc = useQueryClient()
  return useMutation({
    mutationFn: (id: string) =>
      api.put(`/patterns/toggle/${id}`).then(r => r.data),
    onSuccess: () => qc.invalidateQueries({ queryKey: ['all-patterns'] }),
  })
}

// ── Auto-Cycle ───────────────────────────────────────────────────────────────

export const useCycleStatus = () =>
  useQuery({
    queryKey: ['cycle-status'],
    queryFn: () => api.get('/cycle/status').then(r => r.data),
    staleTime: 5_000,
    // Poll every 5s while a cycle is running, every 30s otherwise
    refetchInterval: (query) => ((query.state.data as any)?.running ? 5_000 : 30_000),
  })

export const useCycleHistory = (limit = 20) =>
  useQuery({
    queryKey: ['cycle-history', limit],
    queryFn: () => api.get(`/cycle/history?limit=${limit}`).then(r => r.data),
    staleTime: 60_000,
  })

export const useUpdateCycleConfig = () => {
  const qc = useQueryClient()
  return useMutation({
    mutationFn: (cfg: { enabled?: boolean; interval_hours?: number; similarity_threshold?: number; min_ev_threshold?: number; min_score_threshold?: number }) =>
      api.post('/cycle/config', cfg).then(r => r.data),
    onSuccess: () => qc.invalidateQueries({ queryKey: ['cycle-status'] }),
  })
}

/** Keys to refresh once a cycle finishes — covers cockpit, macro, journal */
export const CYCLE_REFRESH_KEYS = [
  ['macro-regime'],
  ['last-scores'],
  ['all-patterns'],
  ['cycle-history'],
  ['cycle-status'],
  ['journal-summary'],
  ['journal-mtm'],
  ['journal-geo'],
  ['journal-macro'],
  ['geo-risk-score'],
  ['pattern-matches'],
]

export const useTriggerCycle = () => {
  const qc = useQueryClient()
  return useMutation({
    mutationFn: () => api.post('/cycle/trigger').then(r => r.data),
    onSuccess: () => {
      // Immediate status refresh so the spinner shows
      qc.invalidateQueries({ queryKey: ['cycle-status'] })
    },
  })
}

/**
 * Mount this hook once at a high level (e.g. CyclesSection or App).
 * It watches cycle-status and, when a running cycle finishes, refreshes
 * all cockpit + journal queries so the UI reflects the new scores/regime.
 */
export const useCycleWatcher = () => {
  const qc = useQueryClient()
  const { data: statusData } = useCycleStatus()
  const wasRunning = useRef(false)

  useEffect(() => {
    const running = (statusData as any)?.running ?? false
    if (running) {
      wasRunning.current = true
    } else if (wasRunning.current) {
      // Transition: was running → now done → refresh everything
      wasRunning.current = false
      CYCLE_REFRESH_KEYS.forEach(key => qc.invalidateQueries({ queryKey: key }))
    }
  }, [(statusData as any)?.running])
}

// ── Journal de Bord ──────────────────────────────────────────────────────────

export const useJournalSummary = () =>
  useQuery({
    queryKey: ['journal-summary'],
    queryFn: () => api.get('/journal/summary').then(r => r.data),
    staleTime: 2 * 60_000,
  })

export const useMacroHistory = (days = 15) =>
  useQuery({
    queryKey: ['journal-macro', days],
    queryFn: () => api.get(`/journal/macro-history?days=${days}`).then(r => r.data),
    staleTime: 5 * 60_000,
  })

export const useGeoHistory = (days = 30) =>
  useQuery({
    queryKey: ['journal-geo', days],
    queryFn: () => api.get(`/journal/geo-history?days=${days}`).then(r => r.data),
    staleTime: 5 * 60_000,
  })

export const useTradeMtm = (days = 30) =>
  useQuery({
    queryKey: ['journal-mtm', days],
    queryFn: () => api.get(`/journal/trade-mtm?days=${days}`).then(r => r.data),
    staleTime: 0,
    refetchInterval: 5 * 60_000,   // re-fetch live prices every 5 minutes
    refetchIntervalInBackground: false,
  })

// ── Risk Profiles ─────────────────────────────────────────────────────────────

export const useRiskProfiles = () =>
  useQuery({
    queryKey: ['risk-profiles'],
    queryFn: () => api.get('/profiles').then(r => r.data),
    staleTime: 30_000,
  })

export const useUpsertProfile = () => {
  const qc = useQueryClient()
  return useMutation({
    mutationFn: (profile: {
      id?: number; name: string; min_score: number; min_gain_pct: number;
      color?: string; enabled?: boolean; sort_order?: number
    }) => {
      if (profile.id) {
        return api.put(`/profiles/${profile.id}`, profile).then(r => r.data)
      }
      return api.post('/profiles', profile).then(r => r.data)
    },
    onSuccess: () => qc.invalidateQueries({ queryKey: ['risk-profiles'] }),
  })
}

export const useDeleteProfile = () => {
  const qc = useQueryClient()
  return useMutation({
    mutationFn: (id: number) => api.delete(`/profiles/${id}`).then(r => r.data),
    onSuccess: () => qc.invalidateQueries({ queryKey: ['risk-profiles'] }),
  })
}

export const usePreviewTradeScore = (score: number, gainPct: number, enabled = true) =>
  useQuery({
    queryKey: ['profile-preview', score, gainPct],
    queryFn: () => api.get(`/profiles/preview?score=${score}&gain_pct=${gainPct}`).then(r => r.data),
    enabled,
    staleTime: 0,
  })

// ── Reasoning Traces / Post-mortem ────────────────────────────────────────────

export const useTradePostmortem = (tradeId: number | null) =>
  useQuery({
    queryKey: ['postmortem', tradeId],
    queryFn: () => api.get(`/reasoning/postmortem/${tradeId}`).then(r => r.data),
    enabled: tradeId !== null,
    staleTime: 60_000,
  })

export const useAnalyzePostmortem = () =>
  useMutation({
    mutationFn: (tradeId: number) =>
      api.post(`/reasoning/postmortem/${tradeId}/analyze`).then(r => r.data),
  })

export const usePortfolioReportData = (days: number) =>
  useQuery({
    queryKey: ['portfolio-report-data', days],
    queryFn: () => api.get(`/reasoning/portfolio-report?days=${days}`).then(r => r.data),
    staleTime: 120_000,
  })

export const useGeneratePortfolioReport = () =>
  useMutation({
    mutationFn: (days: number) =>
      api.post(`/reasoning/portfolio-report/generate?days=${days}`).then(r => r.data),
  })

export const useAiReportsList = () =>
  useQuery({
    queryKey: ['ai-reports-list'],
    queryFn: () => api.get('/reasoning/reports').then(r => r.data),
    staleTime: 30_000,
  })

export const useAiReport = (reportId: number | null) =>
  useQuery({
    queryKey: ['ai-report', reportId],
    queryFn: () => api.get(`/reasoning/reports/${reportId}`).then(r => r.data),
    enabled: reportId !== null,
    staleTime: Infinity,
  })

// ── Super Contexte / Knowledge Base ──────────────────────────────────────────
export const useKnowledgeState = () =>
  useQuery({
    queryKey: ['knowledge-state'],
    queryFn: () => api.get('/knowledge/state').then(r => r.data),
    staleTime: 5 * 60_000,
  })

export const useKnowledgeHistory = () =>
  useQuery({
    queryKey: ['knowledge-history'],
    queryFn: () => api.get('/knowledge/history').then(r => r.data),
    staleTime: 5 * 60_000,
  })

export const useKnowledgeStateVersion = (stateId: number | null) =>
  useQuery({
    queryKey: ['knowledge-state-version', stateId],
    queryFn: () => api.get(`/knowledge/history/${stateId}`).then(r => r.data),
    enabled: stateId !== null,
    staleTime: Infinity,
  })

export const useKnowledgeEntries = () =>
  useQuery({
    queryKey: ['knowledge-entries'],
    queryFn: () => api.get('/knowledge/entries').then(r => r.data),
    staleTime: 5 * 60_000,
  })

export const useSynthesizeKnowledge = () => {
  const qc = useQueryClient()
  return useMutation({
    mutationFn: (force: boolean = false) =>
      api.post(`/knowledge/synthesize${force ? '?force=true' : ''}`).then(r => r.data),
    onSuccess: (_data) => {
      if (!_data?.skipped) {
        qc.invalidateQueries({ queryKey: ['knowledge-state'] })
        qc.invalidateQueries({ queryKey: ['knowledge-history'] })
        qc.invalidateQueries({ queryKey: ['knowledge-entries'] })
      }
    },
  })
}

export const usePatchKbEntryStatus = () => {
  const qc = useQueryClient()
  return useMutation({
    mutationFn: ({ id, status }: { id: number; status: string }) =>
      api.patch(`/knowledge/entries/${id}/status`, { status }).then(r => r.data),
    onSuccess: () => qc.invalidateQueries({ queryKey: ['knowledge-entries'] }),
  })
}

export const useDeleteAiReport = () => {
  const qc = useQueryClient()
  return useMutation({
    mutationFn: (id: number) => api.delete(`/reasoning/reports/${id}`).then(r => r.data),
    onSuccess: () => qc.invalidateQueries({ queryKey: ['ai-reports-list'] }),
  })
}

export const useDeleteReasoningState = () => {
  const qc = useQueryClient()
  return useMutation({
    mutationFn: (id: number) => api.delete(`/knowledge/history/${id}`).then(r => r.data),
    onSuccess: () => {
      qc.invalidateQueries({ queryKey: ['knowledge-history'] })
      qc.invalidateQueries({ queryKey: ['knowledge-state'] })
    },
  })
}

export const useDeleteKbEntry = () => {
  const qc = useQueryClient()
  return useMutation({
    mutationFn: (id: number) => api.delete(`/knowledge/entries/${id}`).then(r => r.data),
    onSuccess: () => qc.invalidateQueries({ queryKey: ['knowledge-entries'] }),
  })
}

// ── Options Volatility ────────────────────────────────────────────────────────
export const useIvSnapshot = (ticker: string) =>
  useQuery({
    queryKey: ['iv-snapshot', ticker],
    queryFn: () => api.get(`/options-vol/snapshot/${encodeURIComponent(ticker)}`).then(r => r.data),
    enabled: !!ticker,
    staleTime: 60 * 60_000, // 1h — IV doesn't change that fast
  })

export const useIvWatchlist = () =>
  useQuery({
    queryKey: ['iv-watchlist'],
    queryFn: () => api.get('/options-vol/watchlist').then(r => r.data),
    staleTime: 60 * 60_000,
  })

export const useIvBatch = (tickers: string) =>
  useQuery({
    queryKey: ['iv-batch', tickers],
    queryFn: () => api.get('/options-vol/batch', { params: { tickers } }).then(r => r.data),
    enabled: !!tickers,
    staleTime: 60 * 60_000,
  })

export const useIvHistory = (ticker: string, days = 90) =>
  useQuery({
    queryKey: ['iv-history', ticker, days],
    queryFn: () => api.get(`/options-vol/history/${encodeURIComponent(ticker)}`, { params: { days } }).then(r => r.data),
    enabled: !!ticker,
    staleTime: 60 * 60_000,
  })

export const useIvForTrade = (underlying: string) =>
  useQuery({
    queryKey: ['iv-for-trade', underlying],
    queryFn: () => api.get(`/options-vol/for-trade/${encodeURIComponent(underlying)}`).then(r => r.data),
    enabled: !!underlying,
    staleTime: 60 * 60_000,
  })

// ── Analytics (Phase 2) ───────────────────────────────────────────────────────

export const usePatternReliability = () =>
  useQuery({
    queryKey: ['pattern-reliability'],
    queryFn: () => api.get('/analytics/reliability').then(r => r.data),
    staleTime: 10 * 60_000,
  })

export const useCalibration = (days = 365) =>
  useQuery({
    queryKey: ['calibration', days],
    queryFn: () => api.get('/analytics/calibration', { params: { days } }).then(r => r.data),
    staleTime: 10 * 60_000,
  })