stats.py

"""
font_stats_table.py

Counts font families and individual font files per script in fonts_data/.
Script list is taken from the scripts/ debug CSVs of a reference model.
Stats reported by tier (High / Mid / Low) + LaTeX table.
"""

import os
import numpy as np
from collections import defaultdict

# ── config ────────────────────────────────────────────────────────────────────
FONTS_DATA_DIR = "fonts_data"
SCRIPTS_DIR    = "/Users/amirkargaran/GitHub/uniocr.bench/evaluation/res_v1.0/gemini-3.1-flash-lite-preview+img_plain/scripts"

HIGH_SCRIPTS = {"Latn"}
MID_SCRIPTS  = {"Arab", "Cyrl", "Deva", "Hani", "Jpan", "Hang", "Grek", "Hebr", "Thai"}


# ── helpers ───────────────────────────────────────────────────────────────────

def get_bench_scripts(scripts_dir):
    scripts = set()
    for f in os.listdir(scripts_dir):
        if f.endswith(".csv"):
            scripts.add(f.replace(".csv", ""))
    return sorted(scripts)


def tier(script):
    if script in HIGH_SCRIPTS:
        return "High"
    if script in MID_SCRIPTS:
        return "Mid"
    return "Low"


def count_fonts(fonts_data_dir, script):
    """Returns (n_families, n_files) for a script."""
    script_dir = os.path.join(fonts_data_dir, script)
    if not os.path.isdir(script_dir):
        return 0, 0
    families = [d for d in os.listdir(script_dir)
                if os.path.isdir(os.path.join(script_dir, d))]
    n_files = 0
    for fam in families:
        fam_dir = os.path.join(script_dir, fam)
        n_files += sum(
            1 for f in os.listdir(fam_dir)
            if f.lower().endswith((".ttf", ".otf"))
        )
    return len(families), n_files


def stats(values):
    if not values:
        return {}
    a = np.array(values, dtype=float)
    return {
        "n":      len(a),
        "total":  int(a.sum()),
        "mean":   float(a.mean()),
        "median": float(np.median(a)),
        "std":    float(a.std()),
        "min":    int(a.min()),
        "max":    int(a.max()),
        "zero":   int((a == 0).sum()),
    }


# ── main ──────────────────────────────────────────────────────────────────────

def main():
    bench_scripts = get_bench_scripts(SCRIPTS_DIR)
    print(f"Benchmark scripts found: {len(bench_scripts)}\n")

    rows = []
    for script in bench_scripts:
        n_fam, n_files = count_fonts(FONTS_DATA_DIR, script)
        rows.append({
            "script":   script,
            "tier":     tier(script),
            "families": n_fam,
            "files":    n_files,
        })

    tier_rows = defaultdict(list)
    for r in rows:
        tier_rows[r["tier"]].append(r)

    # ── console ───────────────────────────────────────────────────────────────
    for tier_name in ["High", "Mid", "Low"]:
        tr = sorted(tier_rows[tier_name], key=lambda x: -x["families"])
        st = stats([r["families"] for r in tr])
        print(f"── {tier_name}-resource  (n={st['n']}  total={st['total']}  "
              f"mean={st['mean']:.1f}  median={st['median']:.0f}  "
              f"min={st['min']}  max={st['max']}  zero={st['zero']}) ──")
        for r in tr:
            mark = "" if r["families"] > 0 else "  ← NO FONTS"
            print(f"  {r['script']:<6} families={r['families']:3d}  files={r['files']:4d}{mark}")
        print()

    # ── summary LaTeX table ───────────────────────────────────────────────────
    print("\n── Summary LaTeX table ──────────────────────────────────────────\n")
    print(r"\begin{table}[ht]")
    print(r"\centering")
    print(r"\caption{Google Fonts availability per resource tier. "
          r"Counts are per font family.}")
    print(r"\label{tab:font_stats}")
    print(r"\begin{tabular}{l r r r r r r}")
    print(r"\toprule")
    print(r"Tier & Scripts & Total & Mean & Median & Min & Max \\")
    print(r"\midrule")

    for tier_name in ["High", "Mid", "Low"]:
        tr   = tier_rows[tier_name]
        fams = [r["families"] for r in tr]
        st   = stats(fams)
        print(f"  {tier_name} & {st['n']} & {st['total']} & {st['mean']:.1f} "
              f"& {st['median']:.0f} & {st['min']} & {st['max']} \\\\")

    all_st = stats([r["families"] for r in rows])
    print(r"\midrule")
    print(f"  \\textbf{{All}} & {all_st['n']} & {all_st['total']} & {all_st['mean']:.1f} "
          f"& {all_st['median']:.0f} & {all_st['min']} & {all_st['max']} \\\\")
    print(r"\bottomrule")
    print(r"\end{tabular}")
    print(r"\end{table}")


if __name__ == "__main__":
    main()