"""内容分发相关 Pydantic schemas"""

from datetime import datetime

from pydantic import BaseModel, Field


# ---------- 平台信息 ----------

class FormatFeatures(BaseModel):
    """平台格式特性"""
    supports_markdown: bool = False
    supports_html: bool = False
    max_heading_level: int = 0
    supports_code_block: bool = False
    supports_emoji: bool = False


class PlatformInfo(BaseModel):
    """平台信息响应"""
    id: str
    name: str
    icon: str
    max_title_length: int
    max_content_length: int
    min_content_length: int
    supported_media: list[str]
    max_images: int
    best_publish_times: list[str] = []
    best_publish_days: list[str] = []
    format_features: FormatFeatures | None = None
    rules: list[str] = []
    seo_tips: list[str] = []


class PlatformListResponse(BaseModel):
    """平台列表响应"""
    platforms: list[PlatformInfo]


# ---------- 内容校验 ----------

class ContentValidateRequest(BaseModel):
    """内容校验请求"""
    content: str = Field(min_length=1)
    title: str = Field(min_length=1)
    platform: str
    tags: list[str] | None = Field(default=None, description="内容标签列表")


class ValidationIssue(BaseModel):
    """校验问题"""
    severity: str = Field(pattern=r"^(high|medium|low)$")
    message: str


class ContentValidateResponse(BaseModel):
    """内容校验响应"""
    is_valid: bool
    score: int = Field(ge=0, le=100)
    issues: list[ValidationIssue]
    passed: list[str]


# ---------- 发布策略 ----------

class PublishStrategyRequest(BaseModel):
    """发布策略请求"""
    content_title: str = Field(min_length=1)
    platforms: list[str] = Field(min_length=1)
    industry: str = "通用"


class ScheduleItem(BaseModel):
    """排期项"""
    platform: str
    platform_name: str
    suggested_time: str
    reason: str


class PublishStrategyResponse(BaseModel):
    """发布策略响应"""
    schedule: list[ScheduleItem]
    tags: dict[str, list[str]]
    tips: list[str]


# ---------- 内容格式化 ----------

class ContentFormatRequest(BaseModel):
    """内容格式化请求"""
    content: str = Field(min_length=1)
    platform: str


class ContentFormatResponse(BaseModel):
    """内容格式化响应"""
    platform: str
    formatted_content: str
    original_length: int
    formatted_length: int


# ---------- 发布排期 ----------

class ScheduleCreateRequest(BaseModel):
    """创建发布排期请求"""
    content_title: str = Field(min_length=1)
    content_id: str | None = None
    platforms: list[str] = Field(min_length=1)
    industry: str = "通用"
    scheduled_times: dict[str, str] | None = None
    """自定义各平台发布时间 {platform: "YYYY-MM-DD HH:MM"}"""


class PlatformSchedule(BaseModel):
    """单个平台排期"""
    platform: str
    platform_name: str
    scheduled_time: str
    status: str = "pending"
    """pending / published / failed"""


class ScheduleCreateResponse(BaseModel):
    """创建发布排期响应"""
    schedule_id: str
    content_title: str
    platforms: list[PlatformSchedule]
    tips: list[str]
    created_at: str