"""Generate all result figures for the paper from results.py."""
import os
import numpy as np
import matplotlib
matplotlib.use("Agg")
import matplotlib.pyplot as plt
from matplotlib import gridspec
from matplotlib.colors import TwoSlopeNorm
from decimal import Decimal, ROUND_HALF_UP

from results import (RESULTS, TASK_LABEL, TASK_GROUPS, PALOMA_LABEL, PALOMA_ORDER,
                     PALOMA_FAMILY, tally, verdict, paloma_verdict, RECOVERY_YIELD,
                     REPAIR_OPS)

OUT = os.path.join(os.path.dirname(__file__), "..", "figures")
os.makedirs(OUT, exist_ok=True)

plt.rcParams.update({
    "font.family": "STIXGeneral",
    "mathtext.fontset": "stix",
    "font.size": 8.5,
    "axes.titlesize": 9,
    "axes.labelsize": 8.5,
    "xtick.labelsize": 8,
    "ytick.labelsize": 8,
    "legend.fontsize": 7.5,
    "axes.spines.top": False,
    "axes.spines.right": False,
    "pdf.fonttype": 42,
})

TIERS = ["LQ", "MQ", "HQ"]
C_V1 = "#9ecae1"   # light blue  (surface repair only)
C_V2 = "#08519c"   # dark blue   (surface + linguistic)
C_NEG = "#cb181d"
C_POS = "#238b45"


def hu(x, nd=1, sign=True):
    """Round half-up (away from zero) at nd decimals, as the reported tables do;
    Python's float formatting would turn e.g. -6.35 into -6.3."""
    q = Decimal(str(x)).quantize(Decimal(1).scaleb(-nd), rounding=ROUND_HALF_UP)
    if q == 0:
        return f"{abs(q):.{nd}f}"
    out = f"{q:+.{nd}f}" if sign else f"{q:.{nd}f}"
    return out.replace("-", "\u2212")  # typographic minus sign


def get(tier, cfg, task):
    ds, pal = RESULTS[(tier, cfg)]
    for r in ds:
        if r[0] == task:
            return r
    for r in pal:
        if r[0] == task:
            return r
    raise KeyError(task)


# --------------------------------------------------------------------------
# Figure 1: teaser -- (a) LAMBADA gain by tier, (b) robust win/loss, (c) PTB tax
# --------------------------------------------------------------------------
def fig_teaser():
    fig = plt.figure(figsize=(7.0, 1.8))
    gs = gridspec.GridSpec(1, 3, width_ratios=[1.0, 1.1, 1.0], wspace=0.45)
    x = np.arange(len(TIERS))
    w = 0.36

    # (a) LAMBADA delta
    ax = fig.add_subplot(gs[0])
    v1 = [get(t, "V1", "lambada_openai")[7] for t in TIERS]
    v2 = [get(t, "V2", "lambada_openai")[7] for t in TIERS]
    z1 = [get(t, "V1", "lambada_openai")[9] for t in TIERS]
    z2 = [get(t, "V2", "lambada_openai")[9] for t in TIERS]
    ax.bar(x - w / 2, v1, w, color=C_V1, edgecolor="black", linewidth=0.4, label="V1: surface repair")
    ax.bar(x + w / 2, v2, w, color=C_V2, edgecolor="black", linewidth=0.4, label="V2: surface + linguistic repair")
    for xi, (a, b, za, zb) in enumerate(zip(v1, v2, z1, z2)):
        nudge = 0.06 if abs(a - b) < 0.5 else 0.0   # keep adjacent labels apart
        ax.text(xi - w / 2 - nudge, a + 0.1, hu(a), ha="center", va="bottom", fontsize=6.2)
        ax.text(xi + w / 2 + nudge, b + 0.1, hu(b), ha="center", va="bottom", fontsize=6.2)
        ax.text(xi - w / 2, 0.15, f"$z$\n{hu(za, 0)}", ha="center", va="bottom", fontsize=5.8, color="black")
        ax.text(xi + w / 2, 0.15, f"$z$\n{hu(zb, 0)}", ha="center", va="bottom", fontsize=5.8, color="white")
    ax.set_xticks(x, TIERS)
    ax.set_ylabel("LAMBADA $\\Delta$ vs. Raw (pp)")
    ax.set_ylim(0, 6.6)
    ax.axhline(0, color="black", lw=0.6)
    ax.set_title("(a) LAMBADA gain by input tier", fontsize=8, loc="left")

    # (b) robust win / loss
    ax = fig.add_subplot(gs[1])
    for i, cfg in enumerate(["V1", "V2"]):
        col = C_V1 if cfg == "V1" else C_V2
        off = -w / 2 if cfg == "V1" else w / 2
        for xi, t in enumerate(TIERS):
            tl = tally(t, cfg)
            ax.bar(xi + off, tl["W"], w, color=col, edgecolor="black", linewidth=0.4)
            ax.bar(xi + off, -tl["L"], w, color="white", edgecolor=col, hatch="////", linewidth=0.8)
            ax.text(xi + off, tl["W"] + 0.3, f"{tl['W']}", ha="center", va="bottom", fontsize=6.5)
            ax.text(xi + off, -tl["L"] - 0.3, f"{tl['L']}", ha="center", va="top", fontsize=6.5)
    for xi, t in enumerate(TIERS):
        n1, n2 = tally(t, "V1")["net"], tally(t, "V2")["net"]
        sgn = lambda n: f"{n:+d}".replace("-", "\u2212")
        ax.text(xi, 14.6, f"{sgn(n1)} $\\rightarrow$ {sgn(n2)}", ha="center", va="bottom", fontsize=6.5,
                color=C_POS, fontweight="bold")
    ax.axhline(0, color="black", lw=0.6)
    ax.set_xticks(x, TIERS)
    ax.set_yticks([-10, -5, 0, 5, 10, 15], ["10", "5", "0", "5", "10", "15"])
    ax.set_ylim(-11.5, 18.0)
    ax.set_ylabel("robust losses  |  robust wins")
    ax.set_title("(b) Robust verdicts ($|z|\\geq 2$), net V1$\\rightarrow$V2", fontsize=8, loc="left")

    # (c) PTB BPB change
    ax = fig.add_subplot(gs[2])
    v1 = [get(t, "V1", "paloma_ptb")[7] for t in TIERS]
    v2 = [get(t, "V2", "paloma_ptb")[7] for t in TIERS]
    ax.bar(x - w / 2, v1, w, color=C_V1, edgecolor="black", linewidth=0.4)
    ax.bar(x + w / 2, v2, w, color=C_V2, edgecolor="black", linewidth=0.4)
    for xi, (a, b) in enumerate(zip(v1, v2)):
        ax.text(xi - w / 2, a + 0.25, hu(a) + "%", ha="center", va="bottom", fontsize=6.2)
        ax.text(xi + w / 2 + 0.07, max(b, 0) + 0.25, hu(b) + "%", ha="center", va="bottom", fontsize=6.2)
    ax.axhline(0, color="black", lw=0.6)
    ax.set_xticks(x, TIERS)
    ax.set_ylabel("PTB BPB $\\Delta_{rel}$ vs. Raw (%)\n(lower is better)")
    ax.set_ylim(-1.8, 14.0)
    ax.set_title("(c) Penn Treebank BPB change", fontsize=8, loc="left")
    fig.legend(loc="upper center", bbox_to_anchor=(0.5, 1.10), ncol=2, frameon=False, handlelength=1.4,
               columnspacing=2.0)
    fig.savefig(os.path.join(OUT, "fig1_teaser.pdf"), bbox_inches="tight", pad_inches=0.02)
    plt.close(fig)


# --------------------------------------------------------------------------
# Figure 3: heat-maps of all 38 evaluations x 6 configurations
# --------------------------------------------------------------------------
COLS = [("LQ", "V1"), ("LQ", "V2"), ("MQ", "V1"), ("MQ", "V2"), ("HQ", "V1"), ("HQ", "V2")]
COL_LABELS = ["LQ\nV1", "LQ\nV2", "MQ\nV1", "MQ\nV2", "HQ\nV1", "HQ\nV2"]


def _draw_block(ax, rows, get_delta, get_z, labels, is_paloma, title, group_bounds=None, group_names=None,
                cols=None, col_labels=None, seps=(1.5, 3.5), fs_cell=6.2, fs_tick=7, fs_title=8):
    COLS_ = cols or COLS
    COLL_ = col_labels or COL_LABELS
    n = len(rows)
    Z = np.zeros((n, len(COLS_)))
    D = np.zeros((n, len(COLS_)))
    for i, task in enumerate(rows):
        for j, (t, c) in enumerate(COLS_):
            r = get(t, c, task)
            Z[i, j] = get_z(r)
            D[i, j] = get_delta(r)
    # colour: signed detectability; sign flipped for BPB so that blue = better
    S = -Z if is_paloma else Z
    S = np.clip(S, -6, 6)
    # SQuAD v2 is recorded on a composite scale whose direction is not interpreted: draw it neutral
    neutral = [i for i, task in enumerate(rows) if task == "squadv2"]
    for i in neutral:
        S[i, :] = 0.0
    norm = TwoSlopeNorm(vmin=-6, vcenter=0, vmax=6)
    ax.imshow(S, cmap="RdBu", norm=norm, aspect="auto")
    for i in neutral:
        ax.add_patch(plt.Rectangle((-0.5, i - 0.5), len(COLS_), 1, facecolor="#e6e6e6", edgecolor="none", zorder=1.5))
    for i in range(n):
        for j in range(len(COLS_)):
            z = Z[i, j]
            d = D[i, j]
            txt = hu(d)
            col = "white" if abs(S[i, j]) >= 4.2 else "black"
            if i in neutral:
                col = "#555555"
            fs = fs_cell - 0.8 if abs(d) >= 9.95 else fs_cell      # two-digit values: smaller so cells do not run together
            ax.text(j, i, txt, ha="center", va="center", fontsize=fs, color=col, zorder=2,
                    fontweight="bold" if (abs(z) >= 2 and i not in neutral) else "normal")
    ax.set_xticks(range(len(COLS_)), COLL_, fontsize=fs_tick)
    ax.set_yticks(range(n), labels, fontsize=fs_tick)
    ax.tick_params(length=0)
    for s in ax.spines.values():
        s.set_visible(False)
    ax.set_title(title, fontsize=fs_title, loc="left", pad=4)
    # vertical separators between tiers
    for xline in seps:
        ax.axvline(xline, color="white", lw=2.0)
    if group_bounds:
        for gb in group_bounds[1:]:
            ax.axhline(gb - 0.5, color="white", lw=2.0)


def fig_teaser_full():
    """Main-text Figure 1: effect of the full repair pipeline (V2) against Raw."""
    from results import PALOMA_FAMILY
    fig = plt.figure(figsize=(7.0, 1.95))
    gs = gridspec.GridSpec(1, 3, width_ratios=[0.8, 0.8, 1.55], wspace=0.42)
    x = np.arange(len(TIERS))
    # (a) LAMBADA gain of the full pipeline
    ax = fig.add_subplot(gs[0])
    v2 = [get(t, "V2", "lambada_openai")[7] for t in TIERS]
    z2 = [get(t, "V2", "lambada_openai")[9] for t in TIERS]
    ax.bar(x, v2, 0.55, color=C_V2, edgecolor="black", linewidth=0.4)
    for xi, v, z in zip(x, v2, z2):
        ax.text(xi, v + 0.15, hu(v), ha="center", va="bottom", fontsize=7)
        ax.text(xi, 0.25, f"$z$={z:.0f}", ha="center", va="bottom", fontsize=6, color="white")
    ax.set_xticks(x, TIERS)
    ax.set_ylim(0, 6.4)
    ax.set_ylabel("$\\Delta$ vs. Raw (pp)")
    ax.set_title("(a) LAMBADA gain", fontsize=8, loc="left")
    # (b) robust wins vs losses of the full pipeline
    ax = fig.add_subplot(gs[1])
    W, L = [], []
    for t in TIERS:
        ds, pal = RESULTS[(t, "V2")]
        W.append(sum(1 for r in ds if r[9] >= 2) + sum(1 for r in pal if r[8] <= -2))
        L.append(sum(1 for r in ds if r[9] <= -2) + sum(1 for r in pal if r[8] >= 2))
    ax.bar(x, W, 0.55, color=C_V2, edgecolor="black", linewidth=0.4)
    ax.bar(x, [-l for l in L], 0.55, color="#d6604d", edgecolor="black", linewidth=0.4)
    for xi, w_, l_ in zip(x, W, L):
        ax.text(xi, w_ + 0.3, str(w_), ha="center", va="bottom", fontsize=7)
        ax.text(xi, -l_ - 0.3, str(l_), ha="center", va="top", fontsize=7)
    ax.axhline(0, color="black", lw=0.6)
    ax.set_xticks(x, TIERS)
    ax.set_ylim(-10.5, 15.5)
    ax.set_yticks([-8, -4, 0, 4, 8, 12], ["8", "4", "0", "4", "8", "12"])
    ax.set_ylabel("losses $|$ wins")
    ax.set_title("(b) Robust wins/losses", fontsize=8, loc="left")
    # (c) Paloma: per-corpus change, replicated across tiers
    ax = fig.add_subplot(gs[2])
    order = PALOMA_ORDER
    short = {"Falcon-RefinedWeb": "Falcon-RW", "Dolma-100-subreddits": "Dolma-Reddit", "M2D2-Wikipedia": "M2D2-Wiki",
             "Penn Treebank": "PTB", "C4-100-domains": "C4-100dom", "M2D2-S2ORC": "S2ORC", "WikiText-103": "WikiText"}
    xs = np.arange(len(order))
    means = []
    for i, c in enumerate(order):
        vals = [get(t, "V2", c)[7] for t in TIERS]
        m = float(np.mean(vals)); means.append(m)
        col = {"web": C_V2, "mixed": "#4292c6", "curated": "#bdbdbd"}[PALOMA_FAMILY[c]]
        ax.bar(i, m, 0.7, color=col, edgecolor="black", linewidth=0.3)
        for j, v in enumerate(vals):
            ax.plot(i + (j - 1) * 0.16, v, marker="o", ms=2.2, color="black", lw=0)
    ax.axhline(0, color="black", lw=0.6)
    ax.set_xticks(xs, [short.get(PALOMA_LABEL[c], PALOMA_LABEL[c]) for c in order], rotation=55, ha="right", fontsize=6.2)
    ax.set_ylabel("BPB $\\Delta_{rel}$ (%)")
    ax.set_ylim(-7.5, 3.3)
    ax.set_title("(c) Paloma BPB, bar = mean, dots = LQ/MQ/HQ", fontsize=8, loc="left")
    fig.savefig(os.path.join(OUT, "fig1_teaser_full.pdf"), bbox_inches="tight", pad_inches=0.02)
    plt.close(fig)


def fig_heatmaps():
    task_order = [t for _, ts in TASK_GROUPS for t in ts]
    bounds, names, acc = [], [], 0
    for gname, ts in TASK_GROUPS:
        bounds.append(acc)
        names.append(gname)
        acc += len(ts)
    # split into two blocks of 14 / 13 while keeping groups intact where possible
    blockA = task_order[:14]
    blockB = task_order[14:]
    fig = plt.figure(figsize=(7.0, 2.40))
    gs = gridspec.GridSpec(1, 3, width_ratios=[1, 1, 1.12], wspace=0.95, right=0.90)
    axA = fig.add_subplot(gs[0])
    axB = fig.add_subplot(gs[1])
    axC = fig.add_subplot(gs[2])
    _draw_block(axA, blockA, lambda r: r[7], lambda r: r[9], [TASK_LABEL[t] for t in blockA], False,
                "(a) Downstream score, $\\Delta$ vs. Raw (pp)", group_bounds=[0, 2, 7], group_names=None)
    _draw_block(axB, blockB, lambda r: r[7], lambda r: r[9], [TASK_LABEL[t] for t in blockB], False,
                "(b) Downstream score, $\\Delta$ vs. Raw (pp)", group_bounds=[0, 8], group_names=None)
    pal_rows = PALOMA_ORDER
    short = {"Falcon-RefinedWeb": "Falcon-RW", "Dolma-100-subreddits": "Dolma-Reddit", "M2D2-Wikipedia": "M2D2-Wiki",
             "Penn Treebank": "PTB", "C4-100-domains": "C4-100dom"}
    _draw_block(axC, pal_rows, lambda r: r[7], lambda r: r[8],
                [short.get(PALOMA_LABEL[c], PALOMA_LABEL[c]) for c in pal_rows], True,
                "(c) Paloma BPB, $\\Delta_{rel}$ vs. Raw (%)", group_bounds=[0, 5, 7], group_names=None)
    # colour bar
    cax = fig.add_axes([0.925, 0.50, 0.012, 0.32])
    sm = plt.cm.ScalarMappable(cmap="RdBu", norm=TwoSlopeNorm(vmin=-6, vcenter=0, vmax=6))
    cb = fig.colorbar(sm, cax=cax)
    cb.set_ticks([-6, -2, 0, 2, 6])
    cb.set_ticklabels(["$\\leq$$-$6", "$-$2", "0", "+2", "$\\geq$+6"], fontsize=6.5)
    cb.set_label("signed $z$ (blue = better)", fontsize=6.8)
    cb.outline.set_visible(False)
    fig.savefig(os.path.join(OUT, "fig3_heatmaps.pdf"), bbox_inches="tight", pad_inches=0.02)
    plt.close(fig)


def fig_heatmaps_v2():
    """Main-text version: full repair (V2) only, larger type; the 6-column map is in the appendix."""
    task_order = [t for _, ts in TASK_GROUPS for t in ts]
    blockA = task_order[:14]
    blockB = task_order[14:]
    cols = [("LQ", "V2"), ("MQ", "V2"), ("HQ", "V2")]
    labs = ["LQ", "MQ", "HQ"]
    fig = plt.figure(figsize=(5.2, 2.05))
    gs = gridspec.GridSpec(1, 3, width_ratios=[1, 1, 1.05], wspace=1.25, right=0.88)
    axA = fig.add_subplot(gs[0]); axB = fig.add_subplot(gs[1]); axC = fig.add_subplot(gs[2])
    kw = dict(cols=cols, col_labels=labs, seps=(0.5, 1.5), fs_cell=6.6, fs_tick=6.8, fs_title=7.2)
    _draw_block(axA, blockA, lambda r: r[7], lambda r: r[9], [TASK_LABEL[t] for t in blockA], False,
                "(a) Tasks, $\\Delta$ (pp)", group_bounds=[0, 2, 7], **kw)
    _draw_block(axB, blockB, lambda r: r[7], lambda r: r[9], [TASK_LABEL[t] for t in blockB], False,
                "(b) Tasks, $\\Delta$ (pp)", group_bounds=[0, 8], **kw)
    short = {"Falcon-RefinedWeb": "Falcon-RW", "Dolma-100-subreddits": "Dolma-Reddit", "M2D2-Wikipedia": "M2D2-Wiki",
             "Penn Treebank": "PTB", "C4-100-domains": "C4-100dom"}
    _draw_block(axC, PALOMA_ORDER, lambda r: r[7], lambda r: r[8],
                [short.get(PALOMA_LABEL[c], PALOMA_LABEL[c]) for c in PALOMA_ORDER], True,
                "(c) Paloma BPB, $\\Delta_{rel}$ (%)", group_bounds=[0, 5, 7], **kw)
    cax = fig.add_axes([0.915, 0.48, 0.014, 0.34])
    sm = plt.cm.ScalarMappable(cmap="RdBu", norm=TwoSlopeNorm(vmin=-6, vcenter=0, vmax=6))
    cb = fig.colorbar(sm, cax=cax)
    cb.set_ticks([-6, -2, 0, 2, 6])
    cb.set_ticklabels(["$\\leq$$-$6", "$-$2", "0", "+2", "$\\geq$+6"], fontsize=6.3)
    cb.set_label("signed $z$ (blue = better)", fontsize=6.5)
    cb.outline.set_visible(False)
    fig.savefig(os.path.join(OUT, "fig3_heatmaps_v2.pdf"), bbox_inches="tight", pad_inches=0.02)
    plt.close(fig)


# --------------------------------------------------------------------------
# Figure 4: Paloma web vs. curated split, V1 vs V2 (mean delta_rel per family)
# --------------------------------------------------------------------------
def fig_paloma_split():
    fig, axes = plt.subplots(1, 3, figsize=(7.0, 1.9), sharey=True)
    web = [c for c in PALOMA_ORDER if PALOMA_FAMILY[c] == "web"]
    mix = [c for c in PALOMA_ORDER if PALOMA_FAMILY[c] == "mixed"]
    cur = [c for c in PALOMA_ORDER if PALOMA_FAMILY[c] == "curated"]
    for ax, tier in zip(axes, TIERS):
        rows = web + mix + cur
        x = np.arange(len(rows))
        v1 = [get(tier, "V1", c)[7] for c in rows]
        v2 = [get(tier, "V2", c)[7] for c in rows]
        w = 0.38
        ax.bar(x - w / 2, v1, w, color=C_V1, edgecolor="black", linewidth=0.3, label="V1")
        ax.bar(x + w / 2, v2, w, color=C_V2, edgecolor="black", linewidth=0.3, label="V2")
        ax.axhline(0, color="black", lw=0.6)
        ax.axvline(len(web) - 0.5, color="grey", lw=0.6, ls="--")
        ax.axvline(len(web) + len(mix) - 0.5, color="grey", lw=0.6, ls="--")
        ax.set_xticks(x, [PALOMA_LABEL[c].replace("Dolma-100-subreddits", "Dolma-Reddit")
                          .replace("M2D2-", "").replace("Falcon-RefinedWeb", "Falcon-RW")
                          .replace("Penn Treebank", "PTB").replace("C4-100-domains", "C4-100dom")
                          for c in rows], rotation=60, ha="right", fontsize=6.3)
        ax.set_title(f"{tier}", fontsize=8.5)
        ax.text(len(web) / 2 - 0.5, 11.2, "web", ha="center", fontsize=6.5, color="grey")
        ax.text(len(web) + len(mix) / 2 - 0.5, 11.2, "mixed", ha="center", fontsize=6.5, color="grey")
        ax.text(len(web) + len(mix) + len(cur) / 2 - 0.5, 11.2, "curated", ha="center", fontsize=6.5, color="grey")
        ax.set_ylim(-8, 13)
    axes[0].set_ylabel("BPB $\\Delta_{rel}$ vs. Raw (%)\n(lower is better)")
    h, l = axes[0].get_legend_handles_labels()
    fig.legend(h, ["V1 (surface)", "V2 (surface + linguistic)"], loc="upper center", bbox_to_anchor=(0.5, 1.10),
               ncol=2, frameon=False, handlelength=1.0, columnspacing=1.2, borderpad=0.2)
    fig.subplots_adjust(wspace=0.08)
    fig.savefig(os.path.join(OUT, "fig4_paloma_split.pdf"), bbox_inches="tight", pad_inches=0.02)
    plt.close(fig)


# --------------------------------------------------------------------------
# Figure 5 (appendix): repair-operation composition and recovery yield
# --------------------------------------------------------------------------
def fig_ops():
    fig, ax = plt.subplots(figsize=(5.4, 1.9))
    keys = ["ftfy", "artifact", "line", "char_noise", "grammar_syntax"]
    names = ["ftfy atomic\n(stage 2)", "artifact strip\n(stage 4)", "line-level\n(stage 5)", "char. cleanup\n(stage 6)", "grammar/syntax\n(stage 8)"]
    x = np.arange(len(keys))
    w = 0.26
    cols = {"LQ": "#cb181d", "MQ": "#fd8d3c", "HQ": "#08519c"}
    for i, t in enumerate(TIERS):
        vals = [REPAIR_OPS[t][k] for k in keys]
        ax.bar(x + (i - 1) * w, vals, w, color=cols[t], edgecolor="black", linewidth=0.3,
               label=f"{t} (repair coverage {hu(RECOVERY_YIELD[t], 1, sign=False)}%)")
    ax.set_xticks(x, names, fontsize=7)
    ax.set_ylabel("share (%)")
    ax.legend(frameon=False)
    fig.savefig(os.path.join(OUT, "fig5_ops.pdf"), bbox_inches="tight", pad_inches=0.02)
    plt.close(fig)


if __name__ == "__main__":
    fig_teaser()
    fig_heatmaps()
    fig_heatmaps_v2()
    fig_teaser_full()
    fig_paloma_split()
    fig_ops()
    print("figures written to", OUT)