from typing import List, Optional, Literal
from langchain_core.pydantic_v1 import BaseModel, Field

Language = Literal["ja", "en"]
Tone = Literal["formal", "friendly", "excited", "neutral"]
EventType = Literal["product_update", "earnings_summary"]

class CompanyInfo(BaseModel):
    company_name: str = Field(..., description="会社名")
    brand_voice: Optional[str] = Field(None, description="ブランドボイス（例：信頼性、革新性など）")
    region: Optional[str] = Field(None, description="主な地域/市場（例：JP, US, APAC など）")
    language: Language = Field("ja", description="出力言語: ja or en")

class Quote(BaseModel):
    speaker: str = Field(..., description="話者名")
    role: Optional[str] = Field(None, description="役職/肩書")
    quote: str = Field(..., description="引用文")

class KPI(BaseModel):
    name: str = Field(..., description="指標名（売上高、ARR等）")
    value: str = Field(..., description="値（例：12.3億円、+42% YoY）")
    period: Optional[str] = Field(None, description="対象期間（FY2025Q2等）")
    delta: Optional[str] = Field(None, description="変化率/差分（例：+12% QoQ）")

class SeedInput(BaseModel):
    event_type: EventType = Field(..., description="product_update または earnings_summary")
    announce_date: Optional[str] = Field(None, description="発表日（任意、YYYY-MM-DD等）")
    source_text: str = Field(..., description="元ネタ本文（製品更新や決算要旨）")
    goals: List[str] = Field(default_factory=list, description="広報/IRの目的（KGI/KPI含む）")
    tone: Tone = Field("formal", description="トーン")
    company: CompanyInfo = Field(..., description="会社情報")
    include_esg: bool = Field(True, description="ESGテンプレを出力するか")
    include_ir: bool = Field(True, description="IRテンプレを出力するか")

class LPSection(BaseModel):
    hero: str = Field(..., description="ヒーロー見出し+導入文")
    features: List[str] = Field(default_factory=list, description="主な特徴・利点の箇条書き")
    cta_text: Optional[str] = Field(None, description="CTA文言")

class ESGBlock(BaseModel):
    environment: List[str] = Field(default_factory=list, description="E: 環境に関する施策")
    social: List[str] = Field(default_factory=list, description="S: 社会に関する施策")
    governance: List[str] = Field(default_factory=list, description="G: ガバナンスに関する施策")

class IRBlock(BaseModel):
    highlights: List[str] = Field(default_factory=list, description="四半期・通期のハイライト")
    financials: List[KPI] = Field(default_factory=list, description="主要KPI（売上・利益・ユーザー数等）")
    guidance: List[str] = Field(default_factory=list, description="見通し・ガイダンス（任意）")
    cautionary: Optional[str] = Field(None, description="将来見通しに関する注意事項")

class NarrativeData(BaseModel):
    # Press Release
    press_headline: str = Field(..., description="プレスリリースの見出し")
    press_subhead: Optional[str] = Field(None, description="サブヘッド")
    press_body_points: List[str] = Field(default_factory=list, description="本文要点（段落の素）")
    quotes: List[Quote] = Field(default_factory=list, description="引用（経営陣・顧客等）")

    # LP
    lp: LPSection = Field(..., description="LPセクション（ヒーロー/特徴/CTA）")

    # SNS
    sns_thread: List[str] = Field(default_factory=list, description="SNSスレッドの各ポスト（140-280文字程度）")

    # Media Pitch
    media_pitch_subject: str = Field(..., description="メディア向けピッチの件名")
    media_pitch_body: str = Field(..., description="メディア向けピッチ本文（メール想定）")

    # ESG
    esg: Optional[ESGBlock] = Field(None, description="ESGテンプレ（任意）")

    # IR
    ir: Optional[IRBlock] = Field(None, description="IRテンプレ（任意）")