from __future__ import annotations

import json

from django.conf import settings

from .context import NotificationContext
from .recipient import ResolvedFeishuTarget


def absolute_result_url(path: str) -> str:
    base_url = getattr(settings, "PUBLIC_BASE_URL", "http://127.0.0.1:8000").rstrip("/")
    if not path:
        return base_url
    if path.startswith("http://") or path.startswith("https://"):
        return path
    return f"{base_url}/{path.lstrip('/')}"


def build_message_summary(context: NotificationContext, target: ResolvedFeishuTarget) -> str:
    lines = [
        context.title,
        f"批次：{context.workflow_batch_no}",
        f"状态：{context.workflow_status}",
        f"发起人：{context.trigger_username}",
        f"接收人：{target.display_name}",
        *context.summary_lines,
        f"下一步：{context.next_step}",
    ]
    return "\n".join(line for line in lines if line)


def build_feishu_post_message(context: NotificationContext, target: ResolvedFeishuTarget) -> dict:
    result_url = absolute_result_url(context.result_path)
    content = [
        [{"tag": "text", "text": f"{context.title}\n"}],
        [{"tag": "text", "text": f"流程：{context.workflow_name}\n"}],
        [{"tag": "text", "text": f"批次：{context.workflow_batch_no}\n"}],
        [{"tag": "text", "text": f"状态：{context.workflow_status}\n"}],
        [{"tag": "text", "text": f"发起人：{context.trigger_username}\n"}],
    ]
    for line in context.summary_lines:
        content.append([{"tag": "text", "text": f"{line}\n"}])
    content.extend(
        [
            [{"tag": "text", "text": f"下一步：{context.next_step}\n"}],
            [{"tag": "a", "text": "查看系统结果", "href": result_url}],
        ]
    )
    return {
        "receive_id": target.identifier_value,
        "msg_type": "post",
        "content": json.dumps(
            {
                "zh_cn": {
                    "title": context.title,
                    "content": content,
                }
            },
            ensure_ascii=False,
        ),
    }