"""任务输入输出的交付件渲染（全产线通用）。

规则（2026-09-03 用户要求，所有产线统一）：
- md/txt 文件 → MdWidget 渲染正文 + 提供下载链接；
- office/pdf 文件 → 直接提供文件下载链接；
- 无文件的交付件 → 内联文本卡片（旧行为兜底）。

下载/打开走 pipeline-sdlc 的 project_file.dspy（按项目ID+路径，含路径穿越/机构隔离校验），
调用方把 entire_url(project_file.dspy) 的结果传入即可跨模块复用。
"""
import json
import os
from urllib.parse import quote

MD_EXTS = ('.md', '.txt', '.markdown')
OFFICE_EXTS = ('.docx', '.doc', '.xlsx', '.xls', '.pptx', '.ppt', '.pdf',
               '.odt', '.ods', '.odp')

# MdWidget 内联渲染上限：超长 md 改走 md_url 拉文件渲染，避免 widget JSON 过大
_MD_MAX_INLINE = 60000


def classify_file(path):
    """返回 'md' / 'office' / 'other' / ''（无路径）。"""
    ext = os.path.splitext(path or '')[1].lower()
    if ext in MD_EXTS:
        return 'md'
    if ext in OFFICE_EXTS:
        return 'office'
    if path:
        return 'other'
    return ''


def _btn(label, css, script):
    return {"widgettype": "Button", "options": {"label": label, "css": css},
            "binds": [{"wid": "self", "event": "click", "actiontype": "script",
                       "target": "self", "script": script}]}


def _file_row(fname, dl_url, hint=""):
    """文件行：📎 文件名 + (提示) + 下载按钮。"""
    subs = [
        {"widgettype": "Text", "options": {"text": "\U0001f4ce " + fname,
            "cfontsize": 0.85, "color": "#334155", "flex": "1 1 auto",
            "overflow": "hidden", "textOverflow": "ellipsis",
            "whiteSpace": "nowrap"}},
    ]
    if hint:
        subs.append({"widgettype": "Text", "options": {"text": hint,
            "cfontsize": 0.72, "color": "#94a3b8"}})
    subs.append(_btn("下载", "small",
                     "window.open(" + json.dumps(dl_url) + ",'_blank');"))
    return {"widgettype": "HBox",
            "options": {"width": "100%", "gap": "8px", "padding": "6px 10px",
                        "alignItems": "center", "bgcolor": "#f8fafc",
                        "border": "1px solid #e2e8f0", "borderRadius": "6px"},
            "subwidgets": subs}


def _md_block(content, md_url):
    """可滚动 MdWidget：有内联正文用 mdtext，否则 md_url 拉取。"""
    opts = {"width": "100%"}
    if content and len(content) <= _MD_MAX_INLINE:
        opts["mdtext"] = content
    elif md_url:
        opts["md_url"] = md_url
    else:
        opts["mdtext"] = content or "(空文档)"
    return {"widgettype": "VScrollPanel",
            "options": {"css": "filler", "width": "100%", "height": "100%",
                        "minHeight": "120px", "maxHeight": "480px",
                        "padding": "6px 12px", "bgcolor": "#ffffff",
                        "border": "1px solid #e2e8f0", "borderRadius": "6px"},
            "subwidgets": [{"widgettype": "MdWidget", "options": opts}]}


def deliverable_widgets(d, proj_file_url):
    """单个交付件 → widget 列表（头部行 + 文件区 + 审核意见）。

    d: dict，键 deliverable_type/title/content/file_path/project_id/
       review_status/quality_score/review_comment。
    proj_file_url: entire_url('/pipeline-sdlc/api/project_file.dspy') 的结果。
    """
    def g(k):
        v = d.get(k)
        return v if v is not None else ''

    d_type = g('deliverable_type') or ''
    d_title = g('title') or ''
    content = g('content') or ''
    fpath = g('file_path') or ''
    pid = g('project_id') or ''
    d_status = g('review_status') or ''
    d_score = g('quality_score') or ''
    d_comment = g('review_comment') or ''

    out = []
    head = [
        {"widgettype": "Text", "options": {"text": d_type, "cfontsize": 0.8,
            "color": "#3b82f6"}},
        {"widgettype": "Text", "options": {"text": d_title[:80], "cfontsize": 0.8,
            "color": "#1e293b"}},
        {"widgettype": "Filler"},
    ]
    if d_status or d_score:
        head.append({"widgettype": "Text", "options": {
            "text": (d_status + ((" " + str(d_score)) if d_score else '')),
            "cfontsize": 0.75, "color": "#94a3b8"}})
    out.append({"widgettype": "HBox", "options": {"gap": "8px", "width": "100%"},
                "subwidgets": head})

    kind = classify_file(fpath)
    if fpath and pid:
        fname = os.path.basename(fpath)
        open_url = (proj_file_url + "?project_id=" + quote(str(pid))
                    + "&path=" + quote(fpath))
        dl_url = open_url + "&download=1"
        if kind == 'md':
            # md/txt：MdWidget 渲染 + 下载链接
            out.append(_file_row(fname, dl_url, hint="Markdown"))
            out.append(_md_block(content, open_url))
        elif kind == 'office':
            # office/pdf：仅下载链接
            out.append(_file_row(fname, dl_url, hint="office/pdf 下载查看"))
        else:
            out.append(_file_row(fname, dl_url, hint="该文件类型需下载后查看"))
            if content:
                out.append({"widgettype": "Text", "options": {
                    "text": content[:3000], "cfontsize": 0.78, "color": "#475569",
                    "wrap": True, "halign": "left"}})
    elif content:
        # 无文件：内联文本兜底（旧行为）
        out.append({"widgettype": "Text", "options": {"text": content[:5000],
            "cfontsize": 0.78, "color": "#475569", "wrap": True, "halign": "left"}})
    else:
        out.append({"widgettype": "Text", "options": {"text": "(无交付件内容)",
            "cfontsize": 0.78, "color": "#94a3b8"}})

    if d_comment:
        out.append({"widgettype": "Text", "options": {
            "text": "审核意见: " + str(d_comment)[:300], "cfontsize": 0.75,
            "color": "#f0a040", "wrap": True, "halign": "left"}})
    return out


def deliverable_card(d, proj_file_url):
    """单个交付件 → 卡片 VBox（供任务详情右侧面板直接追加）。"""
    return {"widgettype": "VBox",
            "options": {"css": "card", "gap": "4px", "width": "100%",
                        "padding": "8px"},
            "subwidgets": deliverable_widgets(d, proj_file_url)}