from django.db import models
from django.utils import timezone

class DiaryEntry(models.Model):
    """日记条目"""
    date = models.DateField('日期', unique=True)
    title = models.CharField('标题', max_length=200, default='每日日记')
    completed_tasks = models.TextField('完成的任务', blank=True, default='')
    learned = models.TextField('学到的东西', blank=True, default='')
    problems = models.TextField('遇到的问题和解决方案', blank=True, default='')
    reflections = models.TextField('想法和反思', blank=True, default='')
    improvements = models.TextField('进步点', blank=True, default='')
    plans = models.TextField('明日计划', blank=True, default='')
    created_at = models.DateTimeField('创建时间', auto_now_add=True)
    updated_at = models.DateTimeField('更新时间', auto_now=True)

    class Meta:
        ordering = ['-date']
        verbose_name = '日记'
        verbose_name_plural = '日记'

    def __str__(self):
        return f"{self.date} - {self.title}"


class Experience(models.Model):
    """经验总结 - 记录遇到的问题和解决方法"""
    title = models.CharField('标题', max_length=200)
    category = models.CharField('类别', max_length=50, choices=[
        ('deployment', '📦 部署'),
        ('development', '💻 开发'),
        ('database', '🗄️ 数据库'),
        ('permission', '🔐 权限'),
        ('network', '🌐 网络'),
        ('other', '其他'),
    ])
    problem = models.TextField('问题描述')
    solution = models.TextField('解决方案')
    lesson_learned = models.TextField('经验教训', blank=True, default='')
    date = models.DateField('日期', auto_now_add=True)
    created_at = models.DateTimeField('创建时间', auto_now_add=True)

    class Meta:
        ordering = ['-date', '-created_at']
        verbose_name = '经验总结'
        verbose_name_plural = '经验总结'

    def __str__(self):
        return f"{self.category} - {self.title}"


class DailyProgress(models.Model):
    """每日进度追踪"""
    entry = models.ForeignKey(DiaryEntry, on_delete=models.CASCADE, related_name='progresses')
    category = models.CharField('类别', max_length=50)
    description = models.TextField('描述')
    progress_percent = models.IntegerField('进度百分比', default=0)
    created_at = models.DateTimeField('创建时间', auto_now_add=True)

    class Meta:
        ordering = ['-created_at']
        verbose_name = '进度'
        verbose_name_plural = '进度'

    def __str__(self):
        return f"{self.entry.date} - {self.category}: {self.progress_percent}%"