"""
PregoPal - 昨日饮食总结插件
===========================
读取昨日饮食日志，汇总三餐。
"""

import datetime
from pathlib import Path
from plugins.base import LoopPlugin, PluginResult, LoopStage, LoopContext


class DietSummaryPlugin(LoopPlugin):
    """读取昨日饮食日志，汇总三餐"""

    def stage(self) -> LoopStage:
        return LoopStage.SUMMARIZE

    def name(self) -> str:
        return "diet_summary"

    async def run(self, ctx: LoopContext) -> PluginResult:
        logs_dir = Path("data/logs")
        yesterday = (datetime.date.today() - datetime.timedelta(days=1)).isoformat()
        log_file = logs_dir / f"饮食日志_{yesterday}.md"

        if not log_file.exists():
            ctx.briefing["yesterday_diet"] = {"status": "no_record", "summary": "昨日无饮食记录"}
            return PluginResult(
                success=True,
                data={"status": "no_record"},
                message="昨日无饮食记录"
            )

        content = log_file.read_text(encoding='utf-8')
        summary = {"date": yesterday, "meals": {}, "mood": "", "notes": ""}

        current_meal = None
        for line in content.split('\n'):
            line = line.strip()
            if line.startswith('### '):
                current_meal = line.replace('### ', '').strip()
            elif line.startswith('- ') and current_meal:
                food = line.replace('- ', '').strip()
                if current_meal in ("早餐", "午餐", "晚餐", "加餐"):
                    summary["meals"][current_meal] = food
            elif "今日心情" in line:
                summary["mood"] = line

        ctx.briefing["yesterday_diet"] = {
            "status": "found",
            "summary": summary,
            "meal_count": len(summary["meals"]),
        }

        return PluginResult(
            success=True,
            data=summary,
            message=f"已读取昨日饮食日志（{len(summary['meals'])} 餐）"
        )