#!/usr/bin/env python3
# -*- coding: utf-8 -*-

"""
Source-aware structured cleaning (MySQL).

Input table:  messages
Output table: structured_jobs
"""

import json
import logging
import os
import re
from dataclasses import dataclass

import pymysql

CONFIG_FILE = "config.json"
PIPELINE_NAME = "structured_cleaner_v1"

URL_RE = re.compile(r"https?://[^\s)]+", re.IGNORECASE)
EMAIL_RE = re.compile(r"\b[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,}\b", re.IGNORECASE)
TG_RE = re.compile(r"(?<!\w)@[a-zA-Z0-9_]{4,}")
HASHTAG_RE = re.compile(r"#([A-Za-z0-9_\-\u4e00-\u9fff·]+)")
MD_TAG_RE = re.compile(r"#(?:\*\*)?([A-Za-z0-9_\-\u4e00-\u9fff·]+)(?:\*\*)?")

SECTION_KEYS = (
    "简介",
    "合作方式",
    "待招岗位",
    "薪酬福利",
    "岗位职责",
    "岗位要求",
    "申请方式",
    "岗位来源",
)


@dataclass
class StructuredJob:
    source: str
    source_channel: str | None
    parser_name: str
    parser_version: str
    chat_id: int | None
    message_id: int
    message_date: str
    job_type: str | None
    company_name: str | None
    industry_tags: list[str]
    company_intro: str | None
    company_url: str | None
    work_mode: str
    job_nature: str
    job_location_text: str | None
    job_location_tags: list[str] | None
    employment_type_raw: str | None
    position_name: str | None
    position_tags: list[str]
    salary_raw: str | None
    salary_currency: str | None
    salary_min: int | None
    salary_max: int | None
    salary_period: str | None
    responsibilities: list[str]
    requirements: list[str]
    apply_email: str | None
    apply_telegram: str | None
    job_source_url: str | None
    body_text: str
    raw_content: str


def setup_logger() -> logging.Logger:
    os.makedirs("logs", exist_ok=True)
    logger = logging.getLogger("clean_to_structured")
    logger.setLevel(logging.INFO)
    if logger.handlers:
        return logger

    fmt = logging.Formatter(
        "[%(asctime)s] [%(levelname)s] %(message)s", datefmt="%Y-%m-%d %H:%M:%S"
    )
    ch = logging.StreamHandler()
    ch.setFormatter(fmt)
    fh = logging.FileHandler("logs/clean_to_structured.log", encoding="utf-8")
    fh.setFormatter(fmt)
    logger.addHandler(ch)
    logger.addHandler(fh)
    return logger


logger = setup_logger()


def load_mysql_config() -> dict:
    if not os.path.exists(CONFIG_FILE):
        raise FileNotFoundError(f"未找到配置文件: {CONFIG_FILE}")

    with open(CONFIG_FILE, "r", encoding="utf-8") as f:
        cfg = json.load(f)

    mysql_cfg = cfg.get("mysql", {})
    if not isinstance(mysql_cfg, dict):
        raise ValueError("配置错误: mysql 必须是对象")

    result = {
        "host": mysql_cfg.get("host") or os.getenv("MYSQL_HOST", "127.0.0.1"),
        "port": int(mysql_cfg.get("port") or os.getenv("MYSQL_PORT", "3306")),
        "user": mysql_cfg.get("user") or os.getenv("MYSQL_USER", "jobs_user"),
        "password": mysql_cfg.get("password") or os.getenv("MYSQL_PASSWORD", ""),
        "database": mysql_cfg.get("database") or os.getenv("MYSQL_DATABASE", "jobs"),
        "charset": mysql_cfg.get("charset") or os.getenv("MYSQL_CHARSET", "utf8mb4"),
    }
    if not result["password"]:
        raise ValueError("配置错误: mysql.password 不能为空")
    return result


def connect_mysql(cfg: dict):
    conn = pymysql.connect(
        host=cfg["host"],
        port=cfg["port"],
        user=cfg["user"],
        password=cfg["password"],
        database=cfg["database"],
        charset=cfg["charset"],
        autocommit=True,
    )
    with conn.cursor() as cur:
        cur.execute("SET time_zone = '+00:00'")
    return conn


def init_target_db(conn):
    with conn.cursor() as cur:
        cur.execute(
            """
            CREATE TABLE IF NOT EXISTS structured_jobs (
                id BIGINT PRIMARY KEY AUTO_INCREMENT,
                source VARCHAR(255) NOT NULL,
                source_channel VARCHAR(255) NULL,
                parser_name VARCHAR(64) NOT NULL,
                parser_version VARCHAR(32) NOT NULL,
                chat_id BIGINT NULL,
                message_id BIGINT NOT NULL,
                message_date DATETIME NOT NULL,
                job_type VARCHAR(64) NULL,
                company_name VARCHAR(255) NULL,
                industry_tags_json JSON NOT NULL,
                company_intro LONGTEXT NULL,
                company_url TEXT NULL,
                work_mode VARCHAR(32) NOT NULL,
                job_nature VARCHAR(32) NOT NULL,
                job_location_text VARCHAR(255) NULL,
                job_location_tags_json JSON NULL,
                employment_type_raw TEXT NULL,
                position_name VARCHAR(255) NULL,
                position_tags_json JSON NOT NULL,
                salary_raw TEXT NULL,
                salary_currency VARCHAR(16) NULL,
                salary_min BIGINT NULL,
                salary_max BIGINT NULL,
                salary_period VARCHAR(16) NULL,
                responsibilities_json JSON NOT NULL,
                requirements_json JSON NOT NULL,
                apply_email VARCHAR(255) NULL,
                apply_telegram VARCHAR(255) NULL,
                job_source_url TEXT NULL,
                body_text LONGTEXT NOT NULL,
                raw_content LONGTEXT NOT NULL,
                cleaned_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP
                    ON UPDATE CURRENT_TIMESTAMP,
                UNIQUE KEY uk_source_message (source, message_id),
                KEY idx_structured_source_date (source, message_date)
            ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4
            """
        )
        cur.execute(
            """
            CREATE TABLE IF NOT EXISTS clean_state (
                pipeline_name VARCHAR(128) PRIMARY KEY,
                last_message_row_id BIGINT NOT NULL DEFAULT 0,
                updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP
                    ON UPDATE CURRENT_TIMESTAMP
            ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4
            """
        )


def dedupe(values: list[str]) -> list[str]:
    seen = set()
    out = []
    for v in values:
        if not v:
            continue
        if v in seen:
            continue
        seen.add(v)
        out.append(v)
    return out


def clean_md_text(s: str) -> str:
    s = re.sub(r"\*+", "", s)
    s = re.sub(r"~+", "", s)
    s = s.replace("`", "").strip()
    return re.sub(r"\s+", " ", s).strip()


def normalize_md_line(s: str) -> str:
    s = s.replace("**", "").replace("`", "")
    s = s.replace("~~", "")
    s = s.replace("\u3000", " ")
    return re.sub(r"\s+", " ", s).strip()


def clean_company_name(s: str | None) -> str | None:
    if not s:
        return None
    s = clean_md_text(s)
    s = s.strip(" -|:：#")
    return s or None


def infer_salary_currency(text: str) -> str | None:
    low = text.lower()
    if any(k in low for k in ["usd", "us$", "dollar"]) or "$" in text:
        return "USD"
    if any(k in text for k in ["¥", "￥", "人民币"]) or "cny" in low:
        return "CNY"
    if "元" in text or "万" in text:
        return "CNY"
    if "k" in low and any(k in low for k in ["month", "year", "day"]):
        return "USD"
    if "eur" in low or "€" in text:
        return "EUR"
    if "hkd" in low or "hk$" in low:
        return "HKD"
    if "sgd" in low or "s$" in low:
        return "SGD"

    # No explicit marker: infer by language.
    if re.search(r"[\u4e00-\u9fff]", text):
        return "CNY"
    return "USD"


def parse_salary(
    raw: str | None,
) -> tuple[str | None, str | None, int | None, int | None, str | None]:
    if not raw:
        return None, None, None, None, None

    text = clean_md_text(raw)
    lower = text.lower()
    currency = infer_salary_currency(text)

    num_tokens = re.findall(r"(\d+(?:\.\d+)?)\s*([kKwW万]?)", text.replace(",", ""))
    salary_min = None
    salary_max = None
    if num_tokens:
        vals: list[tuple[float, str]] = [(float(n), u) for n, u in num_tokens]
        if len(vals) >= 2:
            u1 = vals[0][1]
            u2 = vals[1][1]
            if not u1 and u2:
                vals[0] = (vals[0][0], u2)
            if not u2 and u1:
                vals[1] = (vals[1][0], u1)

        def scaled(v: float, unit: str) -> int:
            m = 1
            if unit in ("k", "K"):
                m = 1000
            elif unit in ("w", "W", "万"):
                m = 10000
            return int(v * m)

        salary_min = scaled(vals[0][0], vals[0][1]) if len(vals) >= 1 else None
        salary_max = scaled(vals[1][0], vals[1][1]) if len(vals) >= 2 else None

    period = None
    if "month" in lower or "每月" in text or "月" in text:
        period = "month"
    elif "year" in lower or "年" in text:
        period = "year"
    elif "day" in lower or "日" in text:
        period = "day"

    return text, currency, salary_min, salary_max, period


def strip_meta_lines(content: str) -> str:
    lines = []
    for ln in (content or "").splitlines():
        if ln.startswith("[MEDIA_TYPE] "):
            continue
        if ln.startswith("[ACTION_TYPE] "):
            continue
        if ln.startswith("[MEDIA_JSON] "):
            continue
        if ln.startswith("[ACTION_JSON] "):
            continue
        if ln.startswith("phones="):
            continue
        if ln.startswith("[MEDIA_TEXT] "):
            continue
        lines.append(ln.rstrip())
    return "\n".join(lines).strip()


def preprocess_body_text(body_text: str) -> str:
    text = re.sub(r"\[([^\]]+)\]\((https?://[^)\s]+)\)", r"\1 \2", body_text)
    text = text.replace("**", "").replace("__", "").replace("~~", "").replace("`", "")
    lines = [re.sub(r"[ \t]+", " ", ln).strip() for ln in text.splitlines()]
    return "\n".join(lines).strip()


def extract_section(body_text: str, section_name: str) -> str | None:
    lines = body_text.splitlines()
    start = None
    for i, ln in enumerate(lines):
        if section_name in ln:
            start = i + 1
            break
    if start is None:
        return None

    collected = []
    for ln in lines[start:]:
        if any(k in ln for k in SECTION_KEYS):
            break
        collected.append(ln)

    text = "\n".join(collected).strip()
    return text or None


def extract_first_url(text: str | None) -> str | None:
    if not text:
        return None
    urls = URL_RE.findall(text)
    return urls[0] if urls else None


def extract_job_source_url(body_text: str) -> str | None:
    for ln in body_text.splitlines():
        if "岗位来源" in ln:
            urls = URL_RE.findall(ln)
            if urls:
                return urls[0]
    return None


def extract_company_name_dejob(body_text: str) -> str | None:
    for ln in body_text.splitlines():
        if "🏡" in ln:
            no_md = clean_md_text(ln)
            no_md = no_md.replace("🏡", "").strip()
            if "#" in no_md:
                no_md = no_md.split("#", 1)[0].strip()
            return clean_company_name(no_md)
    return None


def extract_tags_after_key(line: str, key: str) -> list[str]:
    if key not in line:
        return []
    frag = normalize_md_line(line.split(key, 1)[1])
    tags = [clean_md_text(t).replace("·", " ").strip() for t in MD_TAG_RE.findall(frag)]
    return dedupe([t for t in tags if t])


def extract_list_section(body_text: str, key: str) -> list[str]:
    sec = extract_section(body_text, key)
    if not sec:
        return []
    items = []
    for ln in sec.splitlines():
        t = clean_md_text(ln)
        t = re.sub(r"^\d+️⃣?\s*", "", t)
        t = re.sub(r"^\d+[\.、]\s*", "", t)
        if t:
            items.append(t)
    return items


def extract_position_name_dejob(body_text: str) -> str | None:
    for ln in body_text.splitlines():
        if "待招岗位" in ln:
            tags = extract_tags_after_key(ln, "待招岗位")
            if tags:
                return tags[0]
    return None


def extract_apply_email(body_text: str) -> str | None:
    emails = EMAIL_RE.findall(body_text)
    return emails[0] if emails else None


def extract_apply_telegram(body_text: str) -> str | None:
    for ln in body_text.splitlines():
        if "Telegram" in ln:
            m = TG_RE.search(ln)
            if m:
                return m.group(0)
    handles = TG_RE.findall(body_text)
    return handles[0] if handles else None


def extract_urls(body_text: str) -> list[str]:
    return dedupe(URL_RE.findall(body_text))


def extract_first_url_by_keyword(body_text: str, keywords: list[str]) -> str | None:
    urls = extract_urls(body_text)
    for u in urls:
        lu = u.lower()
        if any(k.lower() in lu for k in keywords):
            return u
    return None


def extract_first_nonempty_line(body_text: str) -> str | None:
    for ln in body_text.splitlines():
        t = clean_md_text(ln)
        if t:
            return t
    return None


def normalize_possible_url(raw: str) -> str | None:
    token = clean_md_text(raw or "")
    if not token:
        return None
    token = token.strip("()[]<>.,;\"' ")
    if not token:
        return None
    if token.lower().startswith(("http://", "https://")):
        return token
    if token.lower().startswith("www."):
        return "https://" + token
    # simple domain-style fallback, e.g. company.com/apply
    if " " not in token and "." in token and "/" in token:
        return "https://" + token
    if " " not in token and re.fullmatch(r"[A-Za-z0-9.-]+\.[A-Za-z]{2,}", token):
        return "https://" + token
    return None


def extract_apply_link(body_text: str) -> str | None:
    # Priority 1: explicit apply-like lines.
    for ln in body_text.splitlines():
        low = ln.lower()
        if "apply" not in low and "申请" not in ln and "投递" not in ln:
            continue

        # direct URL in line
        line_urls = URL_RE.findall(ln)
        if line_urls:
            return line_urls[0]

        # try parse right side after ':' / '-'
        if ":" in ln:
            rhs = ln.split(":", 1)[1]
        elif "：" in ln:
            rhs = ln.split("：", 1)[1]
        elif "-" in ln:
            rhs = ln.split("-", 1)[1]
        else:
            rhs = ln

        for token in re.split(r"\s+", rhs.strip()):
            u = normalize_possible_url(token)
            if u:
                return u

    # Priority 2: first URL that looks like an apply page.
    for u in extract_urls(body_text):
        lu = u.lower()
        if "apply" in lu or "job" in lu or "careers" in lu:
            return u
    return None


def infer_employment_fields(
    tags: list[str], raw_line: str | None
) -> tuple[str, str, str | None, list[str] | None, str | None]:
    mode_remote = {"远程", "remote", "居家", "在家办公", "home office", "wfh"}
    mode_onsite = {"实地", "现场", "线下", "onsite", "on-site", "坐班", "到岗"}
    nature_map = {
        "全职": "full_time",
        "兼职": "part_time",
        "实习": "intern",
        "合同": "contract",
        "contract": "contract",
        "自由职业": "freelance",
        "freelance": "freelance",
    }
    nature_priority = ["full_time", "part_time", "contract", "intern", "freelance"]

    normalized = []
    for t in tags:
        n = clean_md_text(t).replace("·", " ").strip()
        if n:
            normalized.append(n)
    normalized = dedupe(normalized)

    has_remote = False
    has_onsite = False
    natures_found = []
    locations = []

    for tag in normalized:
        low = tag.lower()
        if low in mode_remote or tag in mode_remote:
            has_remote = True
            continue
        if low in mode_onsite or tag in mode_onsite:
            has_onsite = True
            continue

        mapped = nature_map.get(tag) or nature_map.get(low)
        if mapped:
            natures_found.append(mapped)
            continue

        locations.append(tag)

    if has_remote and has_onsite:
        work_mode = "hybrid"
    elif has_remote:
        work_mode = "remote"
    elif has_onsite:
        work_mode = "onsite"
    else:
        work_mode = "unknown"

    job_nature = "unknown"
    for cand in nature_priority:
        if cand in natures_found:
            job_nature = cand
            break

    location_tags_raw = dedupe(locations)
    location_text = location_tags_raw[0] if location_tags_raw else None
    location_tags: list[str] | None = location_tags_raw if location_tags_raw else None
    raw = clean_md_text(raw_line) if raw_line else None

    return work_mode, job_nature, location_text, location_tags, raw


def parse_dejob_official(
    source: str,
    chat_id: int | None,
    message_id: int,
    message_date: str,
    body_text: str,
    raw_content: str,
) -> StructuredJob:
    job_type = "招聘" if ("招聘" in body_text or "Recruitment" in body_text) else None

    company_name = extract_company_name_dejob(body_text)

    industry_tags = []
    for ln in body_text.splitlines():
        if "🏡" in ln:
            norm_ln = normalize_md_line(ln)
            industry_tags = [
                clean_md_text(t).replace("·", " ") for t in MD_TAG_RE.findall(norm_ln)
            ]
            industry_tags = dedupe([t for t in industry_tags if t])
            break

    cooperation_tags = []
    cooperation_line = None
    for ln in body_text.splitlines():
        if "合作方式" in ln:
            cooperation_line = ln
            norm_ln = normalize_md_line(ln)
            cooperation_tags = [
                clean_md_text(t).replace("·", " ") for t in MD_TAG_RE.findall(norm_ln)
            ]
            cooperation_tags = dedupe([t for t in cooperation_tags if t])
            break
    (
        work_mode,
        job_nature,
        job_location_text,
        job_location_tags,
        employment_type_raw,
    ) = infer_employment_fields(cooperation_tags, cooperation_line)

    position_tags = []
    for ln in body_text.splitlines():
        if "待招岗位" in ln:
            norm_ln = normalize_md_line(ln)
            position_tags = [
                clean_md_text(t).replace("·", " ") for t in MD_TAG_RE.findall(norm_ln)
            ]
            position_tags = dedupe([t for t in position_tags if t])
            break

    position_name = extract_position_name_dejob(body_text)

    intro_sec = extract_section(body_text, "简介")
    company_url = extract_first_url(intro_sec) or extract_first_url(body_text)
    company_intro = None
    if intro_sec:
        intro_lines = [ln for ln in intro_sec.splitlines() if not URL_RE.search(ln)]
        company_intro = clean_md_text("\n".join(intro_lines)) or None

    salary_line = None
    for ln in body_text.splitlines():
        if "薪酬" in ln or "Salary" in ln or "salary" in ln:
            salary_line = ln
            break

    salary_raw, salary_currency, salary_min, salary_max, salary_period = parse_salary(
        salary_line
    )

    responsibilities = extract_list_section(body_text, "岗位职责")
    requirements = extract_list_section(body_text, "岗位要求")

    apply_email = extract_apply_email(body_text)
    apply_tg = extract_apply_telegram(body_text)
    job_source_url = extract_job_source_url(body_text)

    return StructuredJob(
        source=source,
        source_channel="DeJob",
        parser_name="dejob_official",
        parser_version="v1",
        chat_id=chat_id,
        message_id=message_id,
        message_date=message_date,
        job_type=job_type,
        company_name=company_name,
        industry_tags=industry_tags,
        company_intro=company_intro,
        company_url=company_url,
        work_mode=work_mode,
        job_nature=job_nature,
        job_location_text=job_location_text,
        job_location_tags=job_location_tags,
        employment_type_raw=employment_type_raw,
        position_name=position_name,
        position_tags=position_tags,
        salary_raw=salary_raw,
        salary_currency=salary_currency,
        salary_min=salary_min,
        salary_max=salary_max,
        salary_period=salary_period,
        responsibilities=responsibilities,
        requirements=requirements,
        apply_email=apply_email,
        apply_telegram=apply_tg,
        job_source_url=job_source_url,
        body_text=body_text or "empty_message",
        raw_content=raw_content,
    )


def parse_generic(
    source: str,
    chat_id: int | None,
    message_id: int,
    message_date: str,
    body_text: str,
    raw_content: str,
) -> StructuredJob:
    hashtags = [h.replace("·", " ").strip() for h in HASHTAG_RE.findall(body_text)]
    hashtags = dedupe([h for h in hashtags if h])

    urls = URL_RE.findall(body_text)
    emails = EMAIL_RE.findall(body_text)
    tgs = TG_RE.findall(body_text)

    title = None
    for ln in body_text.splitlines():
        t = clean_md_text(ln)
        if t:
            title = t[:120]
            break

    salary_line = None
    for ln in body_text.splitlines():
        if any(k in ln.lower() for k in ("salary", "薪资", "薪酬", "k/", "$")):
            salary_line = ln
            break

    salary_raw, salary_currency, salary_min, salary_max, salary_period = parse_salary(
        salary_line
    )

    job_type = "招聘" if ("招聘" in body_text or "recruit" in body_text.lower()) else None
    (
        work_mode,
        job_nature,
        job_location_text,
        job_location_tags,
        employment_type_raw,
    ) = infer_employment_fields(hashtags, None)

    return StructuredJob(
        source=source,
        source_channel=None,
        parser_name="generic",
        parser_version="v1",
        chat_id=chat_id,
        message_id=message_id,
        message_date=message_date,
        job_type=job_type,
        company_name=None,
        industry_tags=hashtags,
        company_intro=None,
        company_url=urls[0] if urls else None,
        work_mode=work_mode,
        job_nature=job_nature,
        job_location_text=job_location_text,
        job_location_tags=job_location_tags,
        employment_type_raw=employment_type_raw,
        position_name=title,
        position_tags=hashtags,
        salary_raw=salary_raw,
        salary_currency=salary_currency,
        salary_min=salary_min,
        salary_max=salary_max,
        salary_period=salary_period,
        responsibilities=[],
        requirements=[],
        apply_email=emails[0] if emails else None,
        apply_telegram=tgs[0] if tgs else None,
        job_source_url=None,
        body_text=body_text or "empty_message",
        raw_content=raw_content,
    )


def parse_dejob_global(
    source: str,
    chat_id: int | None,
    message_id: int,
    message_date: str,
    body_text: str,
    raw_content: str,
) -> StructuredJob:
    job_type = "招聘" if ("招聘" in body_text or "recruit" in body_text.lower()) else None

    company_name = extract_company_name_dejob(body_text)

    industry_tags = []
    for ln in body_text.splitlines():
        if "🏡" in ln:
            norm_ln = normalize_md_line(ln)
            industry_tags = [
                clean_md_text(t).replace("·", " ") for t in MD_TAG_RE.findall(norm_ln)
            ]
            industry_tags = dedupe([t for t in industry_tags if t])
            break
    if not industry_tags:
        industry_tags = [h.replace("·", " ").strip() for h in HASHTAG_RE.findall(body_text)]
        industry_tags = dedupe([h for h in industry_tags if h])

    cooperation_tags = []
    cooperation_line = None
    for ln in body_text.splitlines():
        low = ln.lower()
        if "合作方式" in ln or "fulltime" in low or "parttime" in low or "remote" in low:
            cooperation_line = ln
            norm_ln = normalize_md_line(ln)
            cooperation_tags = [
                clean_md_text(t).replace("·", " ") for t in MD_TAG_RE.findall(norm_ln)
            ]
            cooperation_tags = dedupe([t for t in cooperation_tags if t])
            break
    (
        work_mode,
        job_nature,
        job_location_text,
        job_location_tags,
        employment_type_raw,
    ) = infer_employment_fields(cooperation_tags, cooperation_line)

    position_tags = []
    for ln in body_text.splitlines():
        if "待招岗位" in ln or "📚" in ln:
            norm_ln = normalize_md_line(ln)
            position_tags = [
                clean_md_text(t).replace("·", " ") for t in MD_TAG_RE.findall(norm_ln)
            ]
            position_tags = dedupe([t for t in position_tags if t])
            break
    if not position_tags:
        position_tags = industry_tags

    position_name = position_tags[0] if position_tags else extract_first_nonempty_line(body_text)

    intro_sec = extract_section(body_text, "Introduction") or extract_section(body_text, "简介")
    urls = extract_urls(body_text)
    company_url = extract_first_url_by_keyword(body_text, ["dejob.top/jobDetail"])
    if company_url and urls:
        for u in urls:
            if "dejob.top/jobDetail" not in u:
                company_url = u
                break
    if not company_url:
        company_url = extract_first_url(intro_sec) or (urls[0] if urls else None)

    company_intro = None
    if intro_sec:
        intro_lines = [ln for ln in intro_sec.splitlines() if not URL_RE.search(ln)]
        company_intro = clean_md_text("\n".join(intro_lines)) or None

    salary_line = None
    for ln in body_text.splitlines():
        if "薪酬" in ln or "salary" in ln.lower():
            salary_line = ln
            break
    salary_raw, salary_currency, salary_min, salary_max, salary_period = parse_salary(
        salary_line
    )

    responsibilities = extract_list_section(body_text, "岗位职责") or extract_list_section(
        body_text, "Responsibilities"
    )
    requirements = extract_list_section(body_text, "岗位要求") or extract_list_section(
        body_text, "Requirements"
    )

    apply_email = extract_apply_email(body_text)
    apply_tg = extract_apply_telegram(body_text)
    job_source_url = extract_first_url_by_keyword(body_text, ["dejob.top/jobDetail"])
    if not job_source_url:
        urls = extract_urls(body_text)
        job_source_url = urls[0] if urls else None

    return StructuredJob(
        source=source,
        source_channel="DeJob",
        parser_name="dejob_global",
        parser_version="v1",
        chat_id=chat_id,
        message_id=message_id,
        message_date=message_date,
        job_type=job_type,
        company_name=company_name,
        industry_tags=industry_tags,
        company_intro=company_intro,
        company_url=company_url,
        work_mode=work_mode,
        job_nature=job_nature,
        job_location_text=job_location_text,
        job_location_tags=job_location_tags,
        employment_type_raw=employment_type_raw,
        position_name=position_name,
        position_tags=position_tags,
        salary_raw=salary_raw,
        salary_currency=salary_currency,
        salary_min=salary_min,
        salary_max=salary_max,
        salary_period=salary_period,
        responsibilities=responsibilities,
        requirements=requirements,
        apply_email=apply_email,
        apply_telegram=apply_tg,
        job_source_url=job_source_url or company_url,
        body_text=body_text or "empty_message",
        raw_content=raw_content,
    )


def parse_remote_cn(
    source: str,
    chat_id: int | None,
    message_id: int,
    message_date: str,
    body_text: str,
    raw_content: str,
) -> StructuredJob:
    lines = [clean_md_text(ln) for ln in body_text.splitlines() if clean_md_text(ln)]
    title = lines[0] if lines else None

    hashtags = [h.replace("·", " ").strip() for h in HASHTAG_RE.findall(body_text)]
    hashtags = dedupe([h for h in hashtags if h])

    (
        work_mode,
        job_nature,
        job_location_text,
        job_location_tags,
        employment_type_raw,
    ) = infer_employment_fields(hashtags, None)

    summary_line = None
    for ln in lines:
        if ln.startswith("摘要:"):
            summary_line = ln
            break
    salary_raw, salary_currency, salary_min, salary_max, salary_period = parse_salary(
        summary_line
    )

    urls = extract_urls(body_text)
    apply_email = extract_apply_email(body_text)
    apply_tg = extract_apply_telegram(body_text)

    # remote_cn often places the detail link right below the title line.
    top_url = None
    raw_lines = [ln.strip() for ln in body_text.splitlines() if ln.strip()]
    for ln in raw_lines[:6]:
        found = URL_RE.findall(ln)
        if found:
            top_url = found[0]
            break

    job_source_url = (
        top_url
        or extract_first_url_by_keyword(body_text, ["remote-info.cn/jobs/"])
        or (urls[0] if urls else None)
    )

    job_type = "招聘" if ("招聘" in body_text or "job" in body_text.lower()) else None

    return StructuredJob(
        source=source,
        source_channel="remote_cn",
        parser_name="remote_cn",
        parser_version="v1",
        chat_id=chat_id,
        message_id=message_id,
        message_date=message_date,
        job_type=job_type,
        company_name=None,
        industry_tags=hashtags,
        company_intro=summary_line.replace("摘要:", "", 1).strip() if summary_line else None,
        company_url=job_source_url or (urls[0] if urls else None),
        work_mode=work_mode,
        job_nature=job_nature,
        job_location_text=job_location_text,
        job_location_tags=job_location_tags,
        employment_type_raw=employment_type_raw,
        position_name=title,
        position_tags=hashtags,
        salary_raw=salary_raw,
        salary_currency=salary_currency,
        salary_min=salary_min,
        salary_max=salary_max,
        salary_period=salary_period,
        responsibilities=[],
        requirements=[],
        apply_email=apply_email,
        apply_telegram=apply_tg,
        job_source_url=job_source_url,
        body_text=body_text or "empty_message",
        raw_content=raw_content,
    )


def parse_cryptojobslist_source(
    source: str,
    chat_id: int | None,
    message_id: int,
    message_date: str,
    body_text: str,
    raw_content: str,
) -> StructuredJob:
    lines = [clean_md_text(ln) for ln in body_text.splitlines() if clean_md_text(ln)]
    title = lines[0] if lines else None
    urls = extract_urls(body_text)
    hashtags = [h.replace("·", " ").strip() for h in HASHTAG_RE.findall(body_text)]
    hashtags = dedupe([h for h in hashtags if h])

    (
        work_mode,
        job_nature,
        job_location_text,
        job_location_tags,
        employment_type_raw,
    ) = infer_employment_fields(hashtags, None)

    salary_line = None
    for ln in lines:
        if any(k in ln.lower() for k in ("salary", "$", "usd")):
            salary_line = ln
            break
    salary_raw, salary_currency, salary_min, salary_max, salary_period = parse_salary(
        salary_line
    )

    apply_email = extract_apply_email(body_text)
    apply_tg = extract_apply_telegram(body_text)
    apply_link = extract_apply_link(body_text)
    job_source_url = (
        apply_link
        or extract_first_url_by_keyword(body_text, ["cryptojobslist.com"])
        or (urls[0] if urls else None)
    )

    job_type = "招聘" if ("job" in body_text.lower() or "hiring" in body_text.lower()) else None

    return StructuredJob(
        source=source,
        source_channel="cryptojobslist",
        parser_name="cryptojobslist",
        parser_version="v1",
        chat_id=chat_id,
        message_id=message_id,
        message_date=message_date,
        job_type=job_type,
        company_name=None,
        industry_tags=hashtags,
        company_intro=None,
        company_url=job_source_url or (urls[0] if urls else None),
        work_mode=work_mode,
        job_nature=job_nature,
        job_location_text=job_location_text,
        job_location_tags=job_location_tags,
        employment_type_raw=employment_type_raw,
        position_name=title,
        position_tags=hashtags,
        salary_raw=salary_raw,
        salary_currency=salary_currency,
        salary_min=salary_min,
        salary_max=salary_max,
        salary_period=salary_period,
        responsibilities=[],
        requirements=[],
        apply_email=apply_email,
        apply_telegram=apply_tg,
        job_source_url=job_source_url,
        body_text=body_text or "empty_message",
        raw_content=raw_content,
    )


def route_parse(row: tuple) -> StructuredJob:
    source, chat_id, message_id, content, message_date = row
    raw_content = content or ""
    body_text = preprocess_body_text(strip_meta_lines(raw_content))

    if source == "@DeJob_official":
        return parse_dejob_official(
            source, chat_id, message_id, message_date, body_text, raw_content
        )
    if source == "@DeJob_Global_group":
        return parse_dejob_global(
            source, chat_id, message_id, message_date, body_text, raw_content
        )
    if source == "@remote_cn":
        return parse_remote_cn(
            source, chat_id, message_id, message_date, body_text, raw_content
        )
    if source == "@cryptojobslist":
        return parse_cryptojobslist_source(
            source, chat_id, message_id, message_date, body_text, raw_content
        )

    return parse_generic(source, chat_id, message_id, message_date, body_text, raw_content)


def upsert_structured(conn, item: StructuredJob):
    with conn.cursor() as cur:
        cur.execute(
            """
            INSERT INTO structured_jobs (
                source, source_channel, parser_name, parser_version, chat_id, message_id,
                message_date, job_type, company_name, industry_tags_json, company_intro,
                company_url, work_mode, job_nature, job_location_text, job_location_tags_json, employment_type_raw,
                position_name, position_tags_json,
                salary_raw, salary_currency, salary_min, salary_max, salary_period,
                responsibilities_json, requirements_json, apply_email, apply_telegram,
                job_source_url, body_text, raw_content
            ) VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s)
            ON DUPLICATE KEY UPDATE
                source_channel=VALUES(source_channel),
                parser_name=VALUES(parser_name),
                parser_version=VALUES(parser_version),
                chat_id=VALUES(chat_id),
                message_date=VALUES(message_date),
                job_type=VALUES(job_type),
                company_name=VALUES(company_name),
                industry_tags_json=VALUES(industry_tags_json),
                company_intro=VALUES(company_intro),
                company_url=VALUES(company_url),
                work_mode=VALUES(work_mode),
                job_nature=VALUES(job_nature),
                job_location_text=VALUES(job_location_text),
                job_location_tags_json=VALUES(job_location_tags_json),
                employment_type_raw=VALUES(employment_type_raw),
                position_name=VALUES(position_name),
                position_tags_json=VALUES(position_tags_json),
                salary_raw=VALUES(salary_raw),
                salary_currency=VALUES(salary_currency),
                salary_min=VALUES(salary_min),
                salary_max=VALUES(salary_max),
                salary_period=VALUES(salary_period),
                responsibilities_json=VALUES(responsibilities_json),
                requirements_json=VALUES(requirements_json),
                apply_email=VALUES(apply_email),
                apply_telegram=VALUES(apply_telegram),
                job_source_url=VALUES(job_source_url),
                body_text=VALUES(body_text),
                raw_content=VALUES(raw_content),
                cleaned_at=CURRENT_TIMESTAMP
            """,
            (
                item.source,
                item.source_channel,
                item.parser_name,
                item.parser_version,
                item.chat_id,
                item.message_id,
                item.message_date,
                item.job_type,
                item.company_name,
                json.dumps(item.industry_tags, ensure_ascii=False),
                item.company_intro,
                item.company_url,
                item.work_mode,
                item.job_nature,
                item.job_location_text,
                json.dumps(item.job_location_tags, ensure_ascii=False)
                if item.job_location_tags is not None
                else None,
                item.employment_type_raw,
                item.position_name,
                json.dumps(item.position_tags, ensure_ascii=False),
                item.salary_raw,
                item.salary_currency,
                item.salary_min,
                item.salary_max,
                item.salary_period,
                json.dumps(item.responsibilities, ensure_ascii=False),
                json.dumps(item.requirements, ensure_ascii=False),
                item.apply_email,
                item.apply_telegram,
                item.job_source_url,
                item.body_text,
                item.raw_content,
            ),
        )


def is_recruitment_job(item: StructuredJob) -> bool:
    return item.job_type == "招聘"


def has_usable_job_link(item: StructuredJob) -> bool:
    return bool((item.job_source_url or "").strip())


def get_last_processed_row_id(conn, pipeline_name: str) -> int:
    with conn.cursor() as cur:
        cur.execute(
            "SELECT COALESCE(last_message_row_id, 0) FROM clean_state WHERE pipeline_name=%s",
            (pipeline_name,),
        )
        row = cur.fetchone()
        return int(row[0]) if row else 0


def set_last_processed_row_id(conn, pipeline_name: str, row_id: int):
    with conn.cursor() as cur:
        cur.execute(
            """
            INSERT INTO clean_state (pipeline_name, last_message_row_id, updated_at)
            VALUES (%s, %s, NOW())
            ON DUPLICATE KEY UPDATE
                last_message_row_id=VALUES(last_message_row_id),
                updated_at=NOW()
            """,
            (pipeline_name, row_id),
        )


def main():
    mysql_cfg = load_mysql_config()
    conn = connect_mysql(mysql_cfg)

    try:
        init_target_db(conn)
        last_row_id = get_last_processed_row_id(conn, PIPELINE_NAME)
        logger.info(f"增量清洗起点 messages.id > {last_row_id}")

        with conn.cursor() as src_cur:
            src_cur.execute(
                """
                SELECT id, source, chat_id, message_id, content, date
                FROM messages
                WHERE id > %s
                ORDER BY id ASC
                """,
                (last_row_id,),
            )
            rows = src_cur.fetchall()

        processed = 0
        inserted = 0
        skipped_non_recruit = 0
        skipped_no_link = 0
        by_parser = {}
        max_row_id = last_row_id

        for row in rows:
            row_id, source, chat_id, message_id, content, message_date = row
            item = route_parse((source, chat_id, message_id, content, message_date))
            processed += 1
            by_parser[item.parser_name] = by_parser.get(item.parser_name, 0) + 1
            if row_id > max_row_id:
                max_row_id = row_id

            if not is_recruitment_job(item):
                skipped_non_recruit += 1
                continue

            if not has_usable_job_link(item):
                skipped_no_link += 1
                continue

            upsert_structured(conn, item)
            inserted += 1

            if processed % 500 == 0:
                logger.info(
                    f"[clean] processed={processed}, inserted={inserted}, "
                    f"skipped_non_recruit={skipped_non_recruit}, skipped_no_link={skipped_no_link}"
                )

        if max_row_id > last_row_id:
            set_last_processed_row_id(conn, PIPELINE_NAME, max_row_id)
            logger.info(f"更新检查点 last_message_row_id={max_row_id}")

        with conn.cursor() as cur:
            cur.execute("SELECT count(*) FROM structured_jobs")
            total = cur.fetchone()[0]

        logger.info(
            "[done] "
            f"structured_jobs={total}, inserted={inserted}, skipped_non_recruit={skipped_non_recruit}, "
            f"skipped_no_link={skipped_no_link}, "
            f"target=mysql.structured_jobs, parsers={by_parser}"
        )
        if processed == 0:
            logger.info("无新增消息，清洗完成")
    except Exception:
        logger.exception("清洗任务失败")
        raise
    finally:
        conn.close()


if __name__ == "__main__":
    main()