202 lines
8.8 KiB
Python
202 lines
8.8 KiB
Python
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"""生成经营者首屏使用的今日必看混排。"""
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from __future__ import annotations
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import json
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from datetime import date
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from pathlib import Path
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from typing import Any
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TODAY_LIMIT = 24
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SECTION_LIMITS = {
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"calendar": 5,
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"exhibition": 5,
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"policy": 4,
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"standard": 4,
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"activity": 6,
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}
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TREND_CATEGORIES = ("trend_blogs", "fashion_trends", "textile_gallery")
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TREND_KEYWORDS = (
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"家纺", "家居", "床品", "床垫", "被子", "毛毯", "毯", "枕", "窗帘", "地毯",
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"面料", "纺织", "织物", "羊毛", "棉花", "亚麻", "丝绸", "灯芯绒", "材质",
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"材料", "色彩", "颜色", "图案", "纹样", "印花", "刺绣", "织造", "可持续",
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"home textile", "fabric", "material", "colour", "color", "pattern", "weave",
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"wool", "cotton", "linen", "silk", "rug", "carpet", "curtain", "bedding",
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"blanket", "pillow", "interior",
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)
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TREND_MATERIAL_KEYWORDS = (
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"家纺", "床品", "床垫", "被子", "毛毯", "窗帘", "地毯", "面料", "纺织", "织物",
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"羊毛", "棉花", "亚麻", "丝绸", "灯芯绒", "织造", "可持续", "home textile",
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"fabric", "textile", "wool", "cotton", "linen", "silk", "rug", "carpet",
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"curtain", "bedding", "blanket", "pillow",
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)
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def load_trends(path: Path) -> dict[str, Any]:
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try:
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payload = json.loads(path.read_text(encoding="utf-8"))
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return payload if isinstance(payload, dict) else {}
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except (OSError, json.JSONDecodeError):
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return {}
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def _date_value(value: Any) -> date | None:
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try:
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return date.fromisoformat(str(value or "")[:10])
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except ValueError:
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return None
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def _trend_candidates(now: date, trends: dict[str, Any] | None) -> list[tuple[int, str, dict[str, Any]]]:
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candidates: list[tuple[int, str, dict[str, Any]]] = []
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categories = (trends or {}).get("categories") or {}
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verified_at = (trends or {}).get("generated_at") or ""
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actions = {
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"trend_blogs": "判断其对家纺面料、成本或消费方向的影响，并记录需要验证的选品假设",
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"fashion_trends": "提取可迁移到家纺的色彩、材质和图案要点，形成打样任务",
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"textile_gallery": "从纹样、配色和织造细节中提取一组可落地的产品灵感",
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}
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targets = {
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"trend_blogs": ["市场变化", "面料与成本", "消费方向"],
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"fashion_trends": ["色彩", "材质", "图案"],
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"textile_gallery": ["纹样", "配色", "织造细节"],
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}
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bases = {"trend_blogs": 840, "fashion_trends": 830, "textile_gallery": 790}
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for category_key in TREND_CATEGORIES:
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category = categories.get(category_key) or {}
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items = category.get("items") if isinstance(category, dict) else []
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for raw in items or []:
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raw_id = str(raw.get("id") or "")
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if not raw_id:
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continue
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title_text = " ".join(str(raw.get(key) or "") for key in ("title", "title_original")).lower()
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summary_text = " ".join(str(raw.get(key) or "") for key in ("summary", "summary_original")).lower()
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title_hits = sum(keyword in title_text for keyword in TREND_KEYWORDS)
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summary_hits = sum(keyword in summary_text for keyword in TREND_KEYWORDS)
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if category_key != "textile_gallery" and not title_hits and not summary_hits:
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continue
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if category_key == "trend_blogs" and not any(keyword in f"{title_text} {summary_text}" for keyword in TREND_MATERIAL_KEYWORDS):
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continue
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published = _date_value(raw.get("published_at"))
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age = max(0, (now - published).days) if published else 30
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if category_key != "textile_gallery" and age > 45:
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continue
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recency = max(0, 30 - min(age, 30))
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score = bases[category_key] + min(title_hits, 3) * 30 + min(summary_hits, 4) * 5 + recency + (20 if raw.get("thumbnail") else 0)
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item = dict(raw)
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item.update({
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"id": f"trend-{raw_id}",
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"section": "standard",
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"source_id": f"trend_{category_key}",
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"trend_category_key": category_key,
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"image": raw.get("thumbnail") or "",
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"region": "全球",
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"authority": "公开趋势来源",
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"verified_at": verified_at,
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"product_targets": targets[category_key],
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"today_action": actions[category_key],
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})
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candidates.append((score, "standard", item))
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return candidates
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def build_today(
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now: date,
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calendar: list[dict[str, Any]],
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exhibitions: list[dict[str, Any]],
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policies: list[dict[str, Any]],
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standards: list[dict[str, Any]],
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activities: list[dict[str, Any]] | None = None,
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trends: dict[str, Any] | None = None,
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) -> list[dict[str, Any]]:
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candidates: list[tuple[int, str, dict[str, Any]]] = []
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for item in exhibitions:
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start = _date_value(item.get("start_date"))
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if start is None:
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continue
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days = (start - now).days
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if 0 <= days <= 21:
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item["today_action"] = item.get("attendance_recommendation") or "核对参展或观展安排"
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candidates.append((900 - days, "exhibition", item))
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for item in calendar:
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start = _date_value(item.get("start_date"))
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stocking_start = _date_value(item.get("stocking_start"))
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stocking_end = _date_value(item.get("stocking_end") or item.get("start_date"))
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if not start or not stocking_start or not stocking_end:
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continue
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days = (start - now).days
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actionable = (
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item.get("business_relevance") in ("high", "medium")
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and item.get("affected_countries")
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and item.get("platforms")
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and item.get("product_suggestions")
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and stocking_start <= now <= stocking_end
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)
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if 0 <= days <= 180 and actionable:
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item["today_action"] = item.get("next_action") or "核对备货与入仓计划"
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candidates.append((850 + int(item.get("priority_score") or 0) - min(days, 180), "calendar", item))
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for item in policies:
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if item.get("policy_type") == "产品安全与召回" and item.get("change_status") != "新发布召回":
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continue
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if item.get("change_status") not in ("新发布召回", "检测到近期更新"):
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continue
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item["today_action"] = item.get("action") or "核对官方规则与受影响商品"
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candidates.append((900 if item.get("risk_level") == "高" else 780, "policy", item))
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for item in standards:
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item["today_action"] = item.get("application") or "转成打样或质检任务"
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candidates.append((520, "standard", item))
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for item in activities or []:
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start = _date_value(item.get("start_date"))
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if start is None:
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continue
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days = (start - now).days
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relevance = item.get("relevance")
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max_days = 30 if relevance == "direct" else 14
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if 0 <= days <= max_days and relevance in ("direct", "must"):
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item["today_action"] = item.get("next_action") or "核对议程、报名截止与适用市场"
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relevance_score = 70 if relevance == "direct" else 45
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official_score = 25 if item.get("official_activity") else 0
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candidates.append((820 + relevance_score + official_score - days, "activity", item))
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candidates.extend(_trend_candidates(now, trends))
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candidates.sort(key=lambda row: (-row[0], str(row[2].get("title") or "")))
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selected: list[tuple[int, str, dict[str, Any]]] = []
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selected_ids: set[str] = set()
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section_counts = {section: 0 for section in SECTION_LIMITS}
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def add(row: tuple[int, str, dict[str, Any]]) -> None:
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_score, section, item = row
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item_id = str(item.get("id") or "")
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if not item_id or item_id in selected_ids or len(selected) >= TODAY_LIMIT:
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return
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if section_counts[section] >= SECTION_LIMITS[section]:
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return
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selected.append(row)
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selected_ids.add(item_id)
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section_counts[section] += 1
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for category_key in TREND_CATEGORIES:
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row = next((candidate for candidate in candidates if candidate[2].get("trend_category_key") == category_key), None)
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if row:
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add(row)
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for section in ("policy", "calendar", "exhibition", "activity"):
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row = next((candidate for candidate in candidates if candidate[1] == section), None)
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if row:
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add(row)
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row = next((candidate for candidate in candidates if candidate[1] == "standard" and not candidate[2].get("trend_category_key")), None)
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if row:
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add(row)
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for row in candidates:
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add(row)
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selected.sort(key=lambda row: (-row[0], str(row[2].get("title") or "")))
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return [item for _score, _section, item in selected]
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