#!/bin/bash
# Load pg_orrery benchmark catalog into PostgreSQL.
#
# Uses pg-orrery-catalog if available, falls back to pre-generated SQL.
#
# Usage:
#   ./bench/load_bench.sh                       # Load from cached SQL or TLE files
#   ./bench/load_bench.sh --rebuild              # Re-merge from individual source files
#   ./bench/load_bench.sh --download             # Re-download sources + rebuild + load
#
# Environment:
#   PGPORT       PostgreSQL port (default: 5499)
#   PGDATABASE   Target database  (default: contrib_regression)
#   SOCKS_PROXY  SOCKS5 proxy for CelesTrak (default: none)
#
set -euo pipefail

BENCH_DIR="$(cd "$(dirname "$0")" && pwd)"
PGPORT="${PGPORT:-5499}"
PGDATABASE="${PGDATABASE:-contrib_regression}"
TABLE="bench_catalog"
REBUILD=false
DOWNLOAD=false

for arg in "$@"; do
    case "$arg" in
        --rebuild)  REBUILD=true ;;
        --download) DOWNLOAD=true; REBUILD=true ;;
        --help|-h)
            head -14 "$0" | tail -13 | sed 's/^# \?//'
            exit 0 ;;
    esac
done

# ── Check for pg-orrery-catalog ──────────────────────────────
HAS_CATALOG=false
if command -v pg-orrery-catalog &>/dev/null; then
    HAS_CATALOG=true
elif [ -f "$BENCH_DIR/../pg-orrery-catalog/.venv/bin/pg-orrery-catalog" ]; then
    # Sibling development checkout
    export PATH="$BENCH_DIR/../pg-orrery-catalog/.venv/bin:$PATH"
    HAS_CATALOG=true
fi

# ── Download sources ─────────────────────────────────────────
if $DOWNLOAD; then
    if $HAS_CATALOG; then
        echo "==> Downloading TLE sources via pg-orrery-catalog..."
        pg-orrery-catalog download --force
    else
        echo "==> pg-orrery-catalog not found, downloading via curl..."

        CURL_PROXY=""
        [ -n "${SOCKS_PROXY:-}" ] && CURL_PROXY="--socks5-hostname $SOCKS_PROXY"

        # CelesTrak active (no auth needed)
        CURL_CT="/usr/bin/curl -s $CURL_PROXY --connect-timeout 15 --max-time 120"
        echo "  CelesTrak active..."
        $CURL_CT "https://celestrak.org/NORAD/elements/gp.php?GROUP=active&FORMAT=3le" \
            -o "$BENCH_DIR/celestrak_active.tle" 2>/dev/null || echo "    FAILED"

        # CelesTrak supplemental GP
        for group in starlink oneweb planet orbcomm; do
            echo "  CelesTrak SupGP ${group}..."
            $CURL_CT "https://celestrak.org/NORAD/elements/supplemental/sup-gp.php?FILE=${group}&FORMAT=3le" \
                -o "$BENCH_DIR/supgp_${group}.tle" 2>/dev/null || true
        done

        REBUILD=true
    fi
fi

# ── Build SQL ────────────────────────────────────────────────
if $REBUILD; then
    if $HAS_CATALOG; then
        echo "==> Building catalog via pg-orrery-catalog..."
        # Use cached downloads if available, fall back to bench/ TLE files
        SOURCES=()
        for f in "$BENCH_DIR"/*.tle; do
            [ -f "$f" ] && SOURCES+=("$f")
        done
        if [ ${#SOURCES[@]} -gt 0 ]; then
            pg-orrery-catalog build "${SOURCES[@]}" --table "$TABLE" \
                > "$BENCH_DIR/load_mega_catalog.sql"
        else
            pg-orrery-catalog build --table "$TABLE" \
                > "$BENCH_DIR/load_mega_catalog.sql"
        fi
        echo "  Generated load_mega_catalog.sql"
    else
        echo "==> Building catalog via build_catalog.py..."
        SOURCES=()
        for f in spacetrack_everything.tle celestrak_active.tle satnogs_full.tle \
                 supgp_starlink.tle supgp_oneweb.tle supgp_planet.tle supgp_orbcomm.tle; do
            [ -f "$BENCH_DIR/$f" ] && SOURCES+=("$BENCH_DIR/$f")
        done

        if [ ${#SOURCES[@]} -eq 0 ]; then
            echo "ERROR: No source TLE files found in $BENCH_DIR" >&2
            exit 1
        fi

        python3 "$BENCH_DIR/build_catalog.py" "${SOURCES[@]}" \
            > "$BENCH_DIR/load_mega_catalog.sql"
        echo "  Generated load_mega_catalog.sql"
    fi
fi

# ── Load into PostgreSQL ─────────────────────────────────────
if [ ! -f "$BENCH_DIR/load_mega_catalog.sql" ]; then
    echo "ERROR: $BENCH_DIR/load_mega_catalog.sql not found" >&2
    echo "  Run with --rebuild or --download first" >&2
    exit 1
fi

echo "==> Loading catalog into $PGDATABASE (port $PGPORT)..."
PGPORT=$PGPORT psql -d "$PGDATABASE" -f "$BENCH_DIR/load_mega_catalog.sql" -q 2>&1 | tail -3

# ── Create indexes ───────────────────────────────────────────
echo "==> Creating indexes..."
PGPORT=$PGPORT psql -d "$PGDATABASE" -q << 'SQL'
\timing on
CREATE INDEX IF NOT EXISTS bench_spgist_idx ON bench_catalog USING spgist (tle tle_spgist_ops);
CREATE INDEX IF NOT EXISTS bench_gist_idx ON bench_catalog USING gist (tle);
\timing off
SQL

# ── Summary ──────────────────────────────────────────────────
PGPORT=$PGPORT psql -d "$PGDATABASE" -q << 'SQL'
SELECT count(*) || ' objects loaded' AS status FROM bench_catalog;
SELECT
    CASE
        WHEN tle_mean_motion(tle) > 11.25 THEN 'LEO'
        WHEN tle_mean_motion(tle) > 1.8 THEN 'MEO'
        WHEN tle_mean_motion(tle) > 0.9 THEN 'GEO'
        ELSE 'HEO'
    END AS regime,
    count(*) AS count
FROM bench_catalog
GROUP BY 1
ORDER BY 2 DESC;
SQL

echo "==> Done.  Run benchmarks with:"
echo "  PGPORT=$PGPORT psql -d $PGDATABASE -f bench/benchmark.sql"