"""SQLite 数据层（兼容原 mock 后端 JSON store，迁移用）
位于 server-core/app/training/，数据落在 server-core/data/opc.db（与平台库 app.db 并列）。
"""
import json
import os
import sqlite3
import time
import random

BASE_DIR = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))  # server-core 根
DB_PATH = os.path.join(BASE_DIR, "serverdata", "data", "app.db")
os.makedirs(os.path.dirname(DB_PATH), exist_ok=True)


def get_conn():
    conn = sqlite3.connect(DB_PATH, check_same_thread=False)
    conn.row_factory = sqlite3.Row
    conn.execute("PRAGMA journal_mode=WAL")
    return conn


def gen_id(prefix):
    ts = time.time()
    s = int(ts)
    # base36 大写，模拟 JS genId
    def b36(n):
        if n == 0:
            return "0"
        d = "0123456789abcdefghijklmnopqrstuvwxyz"
        out = ""
        while n:
            out = d[n % 36] + out
            n //= 36
        return out
    return prefix + b36(s).upper() + b36(random.randint(0, 35)).upper()


SCHEMA = """
CREATE TABLE IF NOT EXISTS accounts (
  id TEXT PRIMARY KEY,
  username TEXT UNIQUE,
  wxid TEXT,
  phone TEXT,
  contact TEXT,
  name TEXT,
  avatar TEXT,
  password TEXT,
  phone_bound INTEGER DEFAULT 0,
  identities TEXT,
  created_at TEXT
);
CREATE TABLE IF NOT EXISTS events (
  id TEXT PRIMARY KEY,
  type TEXT,
  mode TEXT DEFAULT 'offline',
  title TEXT,
  subtitle TEXT,
  desc TEXT,
  location TEXT,
  host TEXT,
  image TEXT,
  link TEXT,
  start_at TEXT,
  duration_min INTEGER DEFAULT 90,
  capacity INTEGER DEFAULT 0,
  status TEXT DEFAULT 'open'
);
CREATE TABLE IF NOT EXISTS bookings (
  id TEXT PRIMARY KEY,
  created_at TEXT,
  status TEXT DEFAULT 'pending',
  username TEXT,
  name TEXT,
  contact TEXT,
  status_label TEXT,
  want TEXT,
  event_id TEXT,
  event_title TEXT,
  event_start TEXT,
  topics TEXT,
  question TEXT,
  source TEXT,
  checkin_at TEXT,
  audit_status TEXT DEFAULT 'pending'
);
CREATE TABLE IF NOT EXISTS tests (
  id TEXT PRIMARY KEY,
  created_at TEXT,
  username TEXT,
  type_code TEXT,
  persona TEXT,
  adapt_index INTEGER,
  adapt_level TEXT,
  tracks TEXT,
  version TEXT
);
CREATE TABLE IF NOT EXISTS courses (
  id TEXT PRIMARY KEY,
  category TEXT,
  level TEXT,
  title TEXT,
  subtitle TEXT,
  desc TEXT,
  price REAL DEFAULT 0,
  status TEXT DEFAULT 'draft',
  start_at TEXT,
  end_at TEXT,
  venue TEXT,
  quota INTEGER DEFAULT 0,
  image TEXT,
  host TEXT,
  created_at TEXT
);
CREATE TABLE IF NOT EXISTS policy_logs (
  id TEXT PRIMARY KEY,
  created_at TEXT,
  username TEXT,
  answers TEXT,
  policies_count INTEGER,
  subsidies_count INTEGER,
  loans_count INTEGER,
  summary TEXT
);
CREATE TABLE IF NOT EXISTS plan_logs (
  id TEXT PRIMARY KEY,
  created_at TEXT,
  username TEXT,
  region TEXT,
  status TEXT,
  need_park INTEGER,
  has_staff INTEGER,
  steps_count INTEGER
);
CREATE TABLE IF NOT EXISTS survey_logs (
  id TEXT PRIMARY KEY,
  created_at TEXT,
  username TEXT,
  source TEXT,
  answers TEXT
);
"""

SEED_EVENTS = [
  {"id": "E-F001", "type": "free", "mode": "online", "title": "AI 让民宿主每月省 10 小时", "subtitle": "民宿 / 文旅创业 · 公益课", "desc": "拆解民宿经营里最耗时的重复劳动——接单、排房、回复咨询。现场演示 AI 怎么把每周 10 小时的杂活接住，让你把时间还给体验和口碑。不卖课，点到即止。", "location": "视频号直播", "host": "云超服 · OPC 培训", "image": "https://picsum.photos/seed/opc-f1/600/400", "link": "", "start_at": "2026-09-04T19:30:00+08:00", "duration_min": 90, "capacity": 0, "status": "open"},
  {"id": "E-S001", "type": "salon", "mode": "offline", "title": "民宿 AI 化改造实战", "subtitle": "交流沙龙 · 12–30 人小场", "desc": "带上你的民宿，现场用 AI 搭建一套内容与客服小助手：从组标题、生成海报到自动回复，走通一遍。1 对 1 快诊你的具体场景，带走可复用的模板。", "location": "昆明市大学生创业园", "host": "云超服 · OPC 培训", "image": "https://picsum.photos/seed/opc-s1/600/400", "link": "", "start_at": "2026-09-05T14:00:00+08:00", "duration_min": 180, "capacity": 30, "status": "invite"},
  {"id": "E-F002", "type": "free", "mode": "offline", "title": "用 AI 做云南咖啡品牌", "subtitle": "咖啡 / 农特产创业 · 公益课", "desc": "从云南豆讲到品牌：怎么用一个好故事、一套 AI 内容打法，把咖啡从产地卖到全国。现场看一条内容从 0 到发布的完整流程。", "location": "昆明市大学生创业园", "host": "云超服 · OPC 培训", "image": "https://picsum.photos/seed/opc-f2/600/400", "link": "", "start_at": "2026-09-06T19:30:00+08:00", "duration_min": 90, "capacity": 60, "status": "open"},
  {"id": "E-S002", "type": "salon", "mode": "offline", "title": "技能打包：把手艺变成产品", "subtitle": "交流沙龙 · 副业转型专场", "desc": "工作坊：把你的技能、经验和手艺，改成能标价、能交付、能复制的产品。现场分组拆解你的卡点，产出一版可落地的产品草图。", "location": "昆明市大学生创业园", "host": "云超服 · OPC 培训", "image": "https://picsum.photos/seed/opc-s2/600/400", "link": "", "start_at": "2026-09-07T14:00:00+08:00", "duration_min": 180, "capacity": 24, "status": "open"},
  {"id": "E-F003", "type": "free", "mode": "online", "title": "一人公司财税避坑入门", "subtitle": "自由职业 / 小老板 · 公益课", "desc": "个体户、一人公司最容易踩的财税坑：发票、成本票、申报节点、核定与查账。用大白话讲清楚，让你不再为报税发愁。", "location": "视频号直播", "host": "云超服 · OPC 培训", "image": "https://picsum.photos/seed/opc-f3/600/400", "link": "", "start_at": "2026-09-09T19:30:00+08:00", "duration_min": 90, "capacity": 0, "status": "pending"},
  {"id": "E-F004", "type": "free", "mode": "offline", "title": "你适不适合创业？先做一次 OPC 测评", "subtitle": "大众 · 公益课", "desc": "现场 30 题速测你的 OPC 适配度：独立、风险、自驱、单兵、AI 意愿、安全垫六维速览，带你读懂自己的类型码与适合的赛道。", "location": "昆明市大学生创业园", "host": "云超服 · OPC 培训", "image": "https://picsum.photos/seed/opc-f4/600/400", "link": "", "start_at": "2026-09-10T19:30:00+08:00", "duration_min": 90, "capacity": 60, "status": "open"},
  {"id": "E-S003", "type": "salon", "mode": "offline", "title": "OPC 测评报告 1 对 1 解读专场", "subtitle": "交流沙龙 · 测评者组场", "desc": "每人 15 分钟快诊：读懂你的 4 字母类型码、适配 6 维和推荐赛道，现场把报告讲到能落地，并给出你的起点方向。", "location": "昆明市大学生创业园", "host": "云超服 · OPC 培训", "image": "https://picsum.photos/seed/opc-s3/600/400", "link": "", "start_at": "2026-09-11T14:00:00+08:00", "duration_min": 180, "capacity": 20, "status": "open"},
  {"id": "E-S004", "type": "salon", "mode": "offline", "title": "资源对接夜：能提供 × 需要", "subtitle": "交流沙龙 · 综合场", "desc": "一张桌子，把你的「能提供」和「需要」摆上台面，现场匹配同行与本地资源。可能认识下一个合作伙伴，也可能接住第一单。", "location": "昆明市大学生创业园", "host": "云超服 · OPC 培训", "image": "https://picsum.photos/seed/opc-s4/600/400", "link": "", "start_at": "2026-09-12T14:00:00+08:00", "duration_min": 180, "capacity": 30, "status": "done"},
]


def now_iso():
    from datetime import datetime, timezone
    return datetime.now(timezone.utc).isoformat().replace("+00:00", "Z")


SEED_COURSES = [
  {"id": "C-001", "category": "AI应用", "level": "入门", "title": "AI 内容一键产出：从标题到海报", "subtitle": "公益课回放", "desc": "把组标题、写正文、配图、做海报这一条链路用 AI 跑通。", "price": 0, "status": "published", "start_at": "2026-09-04T19:30:00+08:00", "end_at": "", "venue": "视频号直播", "quota": 0, "image": "", "host": "云超服 · OPC 培训", "created_at": "2026-08-24T00:00:00Z"},
  {"id": "C-002", "category": "创业", "level": "进阶", "title": "一人公司财税避坑进阶", "subtitle": "线上标准课", "desc": "个体户 / 一人公司：发票、成本票、申报节点、核定与查账。", "price": 499, "status": "draft", "start_at": "2026-09-20T19:30:00+08:00", "end_at": "", "venue": "视频号直播", "quota": 200, "image": "", "host": "云超服 · OPC 培训", "created_at": "2026-08-24T00:00:00Z"},
]


# 运行时建表/种子已移除：表由 alembic(ORM 模型 accounts/events/... )创建；种子经 scripts/db/seed.py。

# ---------------- 通用读写 helpers ----------------

def rows_to_list(rows):
    return [dict(r) for r in rows]


def fetch_one(table, **kw):
    conn = get_conn()
    where = " AND ".join([f"{k}=?" for k in kw])
    row = conn.execute(f"SELECT * FROM {table} WHERE {where}", list(kw.values())).fetchone()
    conn.close()
    return dict(row) if row else None


def fetch_by_id(table, rid):
    return fetch_one(table, id=rid)


def list_all(table, order_by=None):
    conn = get_conn()
    sql = f"SELECT * FROM {table}"
    if order_by:
        sql += f" ORDER BY {order_by}"
    rows = conn.execute(sql).fetchall()
    conn.close()
    return rows_to_list(rows)


def insert(table, data):
    conn = get_conn()
    keys = list(data.keys())
    conn.execute(
        f"INSERT INTO {table} ({','.join(keys)}) VALUES ({','.join(['?']*len(keys))})",
        [data[k] for k in keys],
    )
    conn.commit()
    conn.close()


def update_row(table, rid, patch):
    conn = get_conn()
    keys = list(patch.keys())
    conn.execute(
        f"UPDATE {table} SET {','.join([f'{k}=?' for k in keys])} WHERE id=?",
        [patch[k] for k in keys] + [rid],
    )
    conn.commit()
    conn.close()


def delete_row(table, rid):
    conn = get_conn()
    conn.execute(f"DELETE FROM {table} WHERE id=?", (rid,))
    conn.commit()
    conn.close()