"""全链路入口：预处理 → 感知 → 理解 → 决策"""
from PIL import Image

from .preprocess.pipeline import run as preprocess_run
from .perception.pipeline import run as perception_run
from .understanding.pipeline import run as understanding_run
from .decision.pipeline import decide, DecisionResult


def moderate(img: Image.Image, fmt: str, debug_prefix: str = None) -> DecisionResult:
    pre = preprocess_run(img, fmt)

    results = []
    for sub_img in pre.images:
        perc = perception_run(sub_img, pre.scene_result, debug_prefix)
        texts = [b.text for b in perc.ocr.blocks]
        und = understanding_run(texts)
        result = decide(
            scene=pre.scene_result.scene,
            nsfw=perc.nsfw,
            qr=perc.qr,
            ocr=perc.ocr,
            rule_hits=und.rule_hits,
        )
        results.append(result)

    # 多切片取最高风险
    priority = {"REJECT": 0, "REVIEW": 1, "PASS": 2}
    return min(results, key=lambda r: priority[r.action])