-- Polymarket Bot Database Schema

CREATE TABLE IF NOT EXISTS trades (
    id            TEXT PRIMARY KEY,
    market_id     TEXT NOT NULL,
    question      TEXT NOT NULL,
    direction     TEXT NOT NULL,      -- BUY_YES | BUY_NO
    size_usdc     DOUBLE PRECISION,
    entry_price   DOUBLE PRECISION,
    shares        DOUBLE PRECISION,
    fee_usdc      DOUBLE PRECISION,
    net_cost      DOUBLE PRECISION,
    timestamp     TIMESTAMPTZ NOT NULL,
    reasoning     TEXT,
    paper         BOOLEAN DEFAULT TRUE
);

CREATE TABLE IF NOT EXISTS metrics_daily (
    id                SERIAL PRIMARY KEY,
    timestamp         TIMESTAMPTZ NOT NULL,
    total_trades      INTEGER,
    total_deployed    DOUBLE PRECISION,
    total_fees        DOUBLE PRECISION,
    total_pnl         DOUBLE PRECISION,
    win_rate          DOUBLE PRECISION,
    avg_edge          DOUBLE PRECISION,
    sharpe_ratio      DOUBLE PRECISION,
    calibration_score DOUBLE PRECISION,
    paper_mode        BOOLEAN DEFAULT TRUE
);

CREATE TABLE IF NOT EXISTS markets (
    id            TEXT PRIMARY KEY,
    condition_id  TEXT,
    question      TEXT NOT NULL,
    category      TEXT,
    end_date      TEXT,
    active        BOOLEAN DEFAULT TRUE,
    last_seen     TIMESTAMPTZ DEFAULT NOW()
);

CREATE TABLE IF NOT EXISTS signals (
    id                SERIAL PRIMARY KEY,
    market_id         TEXT NOT NULL,
    timestamp         TIMESTAMPTZ NOT NULL,
    polymarket_price  DOUBLE PRECISION,
    estimated_prob    DOUBLE PRECISION,
    edge              DOUBLE PRECISION,
    confidence        DOUBLE PRECISION,
    direction         TEXT,
    acted_on          BOOLEAN DEFAULT FALSE
);

CREATE INDEX IF NOT EXISTS idx_trades_timestamp ON trades(timestamp DESC);
CREATE INDEX IF NOT EXISTS idx_trades_market ON trades(market_id);
CREATE INDEX IF NOT EXISTS idx_metrics_timestamp ON metrics_daily(timestamp DESC);
CREATE INDEX IF NOT EXISTS idx_signals_timestamp ON signals(timestamp DESC);

-- ─────────────────────────────────────────────────────────────────────────────
-- Phase 1 migrations: edge neto real
--
-- spread_estimate and commission are HEURISTICS, not exact Polymarket exchange
-- costs.  spread_estimate ≈ estimated half-spread for medium-liquidity markets.
-- commission = COMMISSION_RATE (0.02) * size_usdc — mirrors Polymarket taker fee.
-- edge_net = edge_gross - spread_estimate - commission/size_usdc
--          = edge_gross - 0.02 - 0.02   (always 0.04 deduction at current rates)
--
-- These are stored per-trade so we can audit whether the model's cost assumptions
-- were met in practice once markets resolve.
-- ─────────────────────────────────────────────────────────────────────────────
ALTER TABLE trades ADD COLUMN IF NOT EXISTS edge_gross      DOUBLE PRECISION;
ALTER TABLE trades ADD COLUMN IF NOT EXISTS edge_net        DOUBLE PRECISION;
ALTER TABLE trades ADD COLUMN IF NOT EXISTS prior_prob      DOUBLE PRECISION;
ALTER TABLE trades ADD COLUMN IF NOT EXISTS final_prob      DOUBLE PRECISION;
ALTER TABLE trades ADD COLUMN IF NOT EXISTS mid_price       DOUBLE PRECISION;
ALTER TABLE trades ADD COLUMN IF NOT EXISTS spread_estimate DOUBLE PRECISION;
ALTER TABLE trades ADD COLUMN IF NOT EXISTS commission      DOUBLE PRECISION;
ALTER TABLE trades ADD COLUMN IF NOT EXISTS family_key      TEXT;

-- ─────────────────────────────────────────────────────────────────────────────
-- Phase 2 / Phase 5 migrations: market families + observability
--
-- Signals table extended so each evaluated market carries its audit trail:
--   skip_reason  — why the market was not traded ("edge_net", "family",
--                  "gnews_priority", "regime", "prior_extreme", etc.)
--   passed_gross — True if edge_gross alone met regime_min_edge
--   passed_net   — True if edge_net met regime_min_edge (the actual gate)
--   family_key   — market family slug (e.g. "texas-republican-2026")
--   regime_min_edge — threshold that applied to this market/category
-- ─────────────────────────────────────────────────────────────────────────────
ALTER TABLE signals ADD COLUMN IF NOT EXISTS edge_gross      DOUBLE PRECISION;
ALTER TABLE signals ADD COLUMN IF NOT EXISTS edge_net        DOUBLE PRECISION;
ALTER TABLE signals ADD COLUMN IF NOT EXISTS family_key      TEXT;
ALTER TABLE signals ADD COLUMN IF NOT EXISTS regime_min_edge DOUBLE PRECISION;
ALTER TABLE signals ADD COLUMN IF NOT EXISTS skip_reason     TEXT;
ALTER TABLE signals ADD COLUMN IF NOT EXISTS passed_gross    BOOLEAN;
ALTER TABLE signals ADD COLUMN IF NOT EXISTS passed_net      BOOLEAN;

CREATE INDEX IF NOT EXISTS idx_signals_market ON signals(market_id);
CREATE INDEX IF NOT EXISTS idx_trades_family  ON trades(family_key);

-- ─────────────────────────────────────────────────────────────────────────────
-- Position lifecycle: legacy scan can close erroneous paper positions.
-- closed_at IS NULL  → position is open (all open-position queries filter this).
-- closed_at NOT NULL → position closed; close_reason explains why.
-- ─────────────────────────────────────────────────────────────────────────────
ALTER TABLE trades ADD COLUMN IF NOT EXISTS closed_at    TIMESTAMPTZ;
ALTER TABLE trades ADD COLUMN IF NOT EXISTS close_reason TEXT;

CREATE INDEX IF NOT EXISTS idx_trades_closed ON trades(closed_at) WHERE closed_at IS NOT NULL;

-- ─────────────────────────────────────────────────────────────────────────────
-- Fix 3: market resolution and realized P&L per trade
--
-- resolution: 1.0 if YES resolved, 0.0 if NO resolved, NULL if not yet settled.
-- close_pnl:  realized P&L in USDC at close time.
--   BUY_YES: (resolution - entry_price) * shares
--   BUY_NO:  ((1 - resolution) - entry_price) * shares
--   NULL if closed without a known resolution (legacy closes, inversion fixes).
-- ─────────────────────────────────────────────────────────────────────────────
ALTER TABLE trades ADD COLUMN IF NOT EXISTS close_pnl  DOUBLE PRECISION;
ALTER TABLE trades ADD COLUMN IF NOT EXISTS resolution DOUBLE PRECISION;

-- ─────────────────────────────────────────────────────────────────────────────
-- Phase 6: per-feature signal attribution — all values in log-odds space
--
-- All four primary features share a common unit (log-odds contribution to
-- the posterior estimate) so they can be compared directly:
--
--   feat_fg_lo      = _fg_contribution × 2
--                     Fear & Greed direction-adjusted delta, ×2 to log-odds.
--                     Non-zero for every trade. Range ≈ ±0.12.
--                     Materiality threshold: |lo| ≥ 0.05.
--
--   feat_mom_lo     = _momentum_contribution × 2
--                     Momentum delta (direction-adjusted), ×2 to log-odds.
--                     Zero when |btc_change_24h| ≤ 2 %. Range ≈ ±0.15.
--                     Materiality threshold: |lo| ≥ 0.05.
--
--   feat_news_lo    = news_log_adj   (already in log-odds, no scaling)
--                     GNews sentiment × NEWS_LOGODDS_WEIGHT (1.5).
--                     Zero for non-politics or when GNews budget exhausted.
--                     Range ≈ ±1.5.  Materiality threshold: |lo| ≥ 0.10.
--
--   feat_mfld_lo    = manifold_log_adj  (already in log-odds, no scaling)
--                     Manifold divergence × MANIFOLD_LOGODDS_WEIGHT (0.6).
--                     Zero when Manifold returned no result.
--                     Range ≈ ±0.6.  Materiality threshold: |lo| ≥ 0.10.
--
--   feat_btc_dom_lo = _btc_dom_contribution × 2
--                     BTC-dominance alt-pressure delta, ×2 to log-odds.
--                     Only fires for ETH / altcoin / general-crypto markets
--                     when btc_dominance > 55 % or < 45 %.
--                     Values: { −0.06, 0.0, +0.06 }.
--                     Materiality threshold: |lo| ≥ 0.05.
--
-- NULL for pre-Phase-6 trades.  Backfilled at startup via
-- Database.backfill_feature_columns() using reasoning-string regex
-- (fg_lo/mom_lo multiplied by 2 from raw; news_lo/mfld_lo taken directly;
-- btc_dom_lo cannot be backfilled and remains NULL for legacy trades).
-- ─────────────────────────────────────────────────────────────────────────────
ALTER TABLE trades ADD COLUMN IF NOT EXISTS feat_fg_lo      DOUBLE PRECISION;
ALTER TABLE trades ADD COLUMN IF NOT EXISTS feat_mom_lo     DOUBLE PRECISION;
ALTER TABLE trades ADD COLUMN IF NOT EXISTS feat_news_lo    DOUBLE PRECISION;
ALTER TABLE trades ADD COLUMN IF NOT EXISTS feat_mfld_lo    DOUBLE PRECISION;
ALTER TABLE trades ADD COLUMN IF NOT EXISTS feat_btc_dom_lo DOUBLE PRECISION;

CREATE INDEX IF NOT EXISTS idx_trades_feat_fg   ON trades(feat_fg_lo)  WHERE feat_fg_lo IS NOT NULL;
CREATE INDEX IF NOT EXISTS idx_trades_feat_mfld ON trades(feat_mfld_lo) WHERE feat_mfld_lo IS NOT NULL;

-- ─────────────────────────────────────────────────────────────────────────────
-- Manifold match audit — per-trade columns in trades
--
-- Persisted for every trade where Manifold was queried (status='accepted').
-- mfld_match_status: 'accepted' | 'rejected' | 'no_results'
-- mfld_inverted: TRUE when prob_final = 1 - prob_raw (party complement match)
-- ─────────────────────────────────────────────────────────────────────────────
ALTER TABLE trades ADD COLUMN IF NOT EXISTS mfld_market_id    TEXT;
ALTER TABLE trades ADD COLUMN IF NOT EXISTS mfld_market_title TEXT;
ALTER TABLE trades ADD COLUMN IF NOT EXISTS mfld_market_url   TEXT;
ALTER TABLE trades ADD COLUMN IF NOT EXISTS mfld_prob_raw     DOUBLE PRECISION;
ALTER TABLE trades ADD COLUMN IF NOT EXISTS mfld_prob_final   DOUBLE PRECISION;
ALTER TABLE trades ADD COLUMN IF NOT EXISTS mfld_inverted     BOOLEAN;
ALTER TABLE trades ADD COLUMN IF NOT EXISTS mfld_match_score  DOUBLE PRECISION;
ALTER TABLE trades ADD COLUMN IF NOT EXISTS mfld_match_reason TEXT;
ALTER TABLE trades ADD COLUMN IF NOT EXISTS mfld_match_status TEXT;

-- ─────────────────────────────────────────────────────────────────────────────
-- Manifold match audit table — records every Manifold query attempt
--
-- Populated for ALL queries: accepted, rejected, and no_results.
-- used_in_trade=TRUE is set after executor confirms a trade was executed.
-- poly_market_id: Market.id from the Polymarket Market dataclass (never NULL).
-- ─────────────────────────────────────────────────────────────────────────────
CREATE TABLE IF NOT EXISTS manifold_match_audit (
    id                TEXT PRIMARY KEY,
    timestamp         TIMESTAMPTZ DEFAULT NOW(),
    poly_market_id    TEXT NOT NULL,
    poly_question     TEXT NOT NULL,
    search_query      TEXT,
    mfld_market_id    TEXT,
    mfld_market_title TEXT,
    mfld_market_url   TEXT,
    prob_raw          DOUBLE PRECISION,
    prob_final        DOUBLE PRECISION,
    inverted          BOOLEAN DEFAULT FALSE,
    match_score       DOUBLE PRECISION,
    match_reason      TEXT,
    match_status      TEXT NOT NULL,
    used_in_trade     BOOLEAN DEFAULT FALSE
);

CREATE INDEX IF NOT EXISTS idx_mfld_audit_timestamp ON manifold_match_audit(timestamp DESC);
CREATE INDEX IF NOT EXISTS idx_mfld_audit_status    ON manifold_match_audit(match_status);
CREATE INDEX IF NOT EXISTS idx_mfld_audit_poly_mkt  ON manifold_match_audit(poly_market_id);

-- ─────────────────────────────────────────────────────────────────────────────
-- Metric exclusion — administrative closure flag
--
-- excluded_from_metrics: TRUE for trades closed for non-signal reasons
--   (bad matcher, data error, admin close).  These trades are excluded from
--   win_rate, calibration_score, realized_pnl, and feature attribution.
-- exclusion_reason: free-text label for the exclusion cause.
--   e.g. 'invalid_manifold_match_legacy'
-- ─────────────────────────────────────────────────────────────────────────────
ALTER TABLE trades ADD COLUMN IF NOT EXISTS excluded_from_metrics BOOLEAN DEFAULT FALSE;
ALTER TABLE trades ADD COLUMN IF NOT EXISTS exclusion_reason TEXT;

CREATE INDEX IF NOT EXISTS idx_trades_excluded ON trades(excluded_from_metrics)
  WHERE excluded_from_metrics = TRUE;

-- ─────────────────────────────────────────────────────────────────────────────
-- Fix 3: extended metrics_daily columns for DB-computed metrics
--
-- unrealized_pnl_est: SUM(edge_net * net_cost - fee) on open trades with edge_net.
--   Estimated — uses model's own edge signal, not live market price.
-- realized_pnl: SUM(close_pnl) on closed trades with a known resolution.
--   Exact — derived from actual market outcome.
-- open_count / closed_count / resolved_count: trade counts at snapshot time.
-- ─────────────────────────────────────────────────────────────────────────────
ALTER TABLE metrics_daily ADD COLUMN IF NOT EXISTS unrealized_pnl_est DOUBLE PRECISION;
ALTER TABLE metrics_daily ADD COLUMN IF NOT EXISTS realized_pnl       DOUBLE PRECISION;
ALTER TABLE metrics_daily ADD COLUMN IF NOT EXISTS open_count         INTEGER;
ALTER TABLE metrics_daily ADD COLUMN IF NOT EXISTS closed_count       INTEGER;
ALTER TABLE metrics_daily ADD COLUMN IF NOT EXISTS resolved_count     INTEGER;
