from pydantic import BaseModel, Field
from typing import List, Optional

# ---------------------------------------------------------------------------
# Existing generic SEO
# ---------------------------------------------------------------------------

class KeywordData(BaseModel):
    keyword: str
    search_volume: str
    competition: str
    relevance: int

class HashtagData(BaseModel):
    tag: str
    post_count: str

class SEORequest(BaseModel):
    content: str

class SEOResponse(BaseModel):
    core_keywords: List[KeywordData]
    related_phrases: List[str]
    viral_hashtags: List[HashtagData]
    strategy_tips: List[str]
    content_titles: List[str]
    target_audience: str
    error: Optional[str] = None

# ---------------------------------------------------------------------------
# YouTube
# ---------------------------------------------------------------------------

class VideoTitle(BaseModel):
    title: str
    expected_ctr: str

class YouTubeResponse(BaseModel):
    video_titles: List[VideoTitle]
    tags: List[str]
    description_template: str
    thumbnail_ideas: List[str]
    best_posting_time: str
    engagement_strategies: List[str]
    competition_gap_analysis: str
    error: Optional[str] = None
    core_keywords: Optional[List[KeywordData]] = None
    related_phrases: Optional[List[str]] = None
    viral_hashtags: Optional[List[HashtagData]] = None
    strategy_tips: Optional[List[str]] = None
    content_titles: Optional[List[str]] = None
    hashtags: Optional[List[str]] = None

# ---------------------------------------------------------------------------
# Instagram
# ---------------------------------------------------------------------------

class CaptionData(BaseModel):
    caption: str
    tone: str

class HashtagSets(BaseModel):
    small: List[str]
    medium: List[str]
    large: List[str]

class ContentIdeas(BaseModel):
    reels: List[str]
    carousels: List[str]
    stories: List[str]

class InstagramResponse(BaseModel):
    captions: List[CaptionData]
    hashtag_sets: HashtagSets
    content_ideas: ContentIdeas
    best_posting_time: str
    growth_strategies: List[str]
    error: Optional[str] = None
    core_keywords: Optional[List[KeywordData]] = None
    related_phrases: Optional[List[str]] = None
    viral_hashtags: Optional[List[HashtagData]] = None
    strategy_tips: Optional[List[str]] = None
    content_titles: Optional[List[str]] = None
    hashtags: Optional[List[str]] = None

# ---------------------------------------------------------------------------
# LinkedIn
# ---------------------------------------------------------------------------

class PostDraft(BaseModel):
    headline: str
    body: str
    hook: str
    post_type: str = "text"
    call_to_action: Optional[str] = None
    media_suggestion: Optional[str] = None

class LinkedInResponse(BaseModel):
    post_drafts: List[PostDraft]
    hashtags: List[str]
    article_topics: List[str]
    thought_leadership_angles: List[str]
    engagement_prompts: List[str] = []
    target_audience_tags: List[str] = []
    best_posting_time: str
    industry_insights: str
    error: Optional[str] = None
    core_keywords: Optional[List[KeywordData]] = None
    related_phrases: Optional[List[str]] = None
    viral_hashtags: Optional[List[HashtagData]] = None
    strategy_tips: Optional[List[str]] = None
    content_titles: Optional[List[str]] = None

class LinkedInPostRequest(BaseModel):
    content: str
    draft_index: int = 0
    access_token: str = ""
    linkedin_urn: str = ""

class LinkedInPostResponse(BaseModel):
    success: bool
    post_url: Optional[str] = None
    message: str
    error: Optional[str] = None

# ---------------------------------------------------------------------------
# Facebook
# ---------------------------------------------------------------------------

class PostIdea(BaseModel):
    type: str
    content: str

class FacebookResponse(BaseModel):
    post_ideas: List[PostIdea]
    engagement_hooks: List[str]
    hashtags: List[str]
    ad_copy_suggestions: List[str]
    best_posting_time: str
    page_growth_tips: List[str]
    error: Optional[str] = None
    core_keywords: Optional[List[KeywordData]] = None
    related_phrases: Optional[List[str]] = None
    viral_hashtags: Optional[List[HashtagData]] = None
    strategy_tips: Optional[List[str]] = None
    content_titles: Optional[List[str]] = None

# ---------------------------------------------------------------------------
# X / Twitter
# ---------------------------------------------------------------------------

class TweetThread(BaseModel):
    tweets: List[str]
    theme: str

class TwitterResponse(BaseModel):
    tweet_threads: List[TweetThread]
    viral_hooks: List[str]
    hashtags: List[str]
    best_posting_time: str
    engagement_tactics: List[str]
    error: Optional[str] = None
    core_keywords: Optional[List[KeywordData]] = None
    related_phrases: Optional[List[str]] = None
    viral_hashtags: Optional[List[HashtagData]] = None
    strategy_tips: Optional[List[str]] = None
    content_titles: Optional[List[str]] = None

# ---------------------------------------------------------------------------
# TikTok
# ---------------------------------------------------------------------------

class VideoConcept(BaseModel):
    hook: str
    script_snippet: str
    sound_suggestion: str

class TikTokResponse(BaseModel):
    video_concepts: List[VideoConcept]
    trending_angles: List[str]
    hashtags: List[str]
    best_posting_time: str
    viral_strategies: List[str]
    error: Optional[str] = None
    core_keywords: Optional[List[KeywordData]] = None
    related_phrases: Optional[List[str]] = None
    viral_hashtags: Optional[List[HashtagData]] = None
    strategy_tips: Optional[List[str]] = None
    content_titles: Optional[List[str]] = None

# ---------------------------------------------------------------------------
# Pinterest
# ---------------------------------------------------------------------------

class PinIdea(BaseModel):
    title: str
    description: str
    keyword_focus: str

class PinterestResponse(BaseModel):
    pin_ideas: List[PinIdea]
    board_organization: List[str]
    seo_keywords: List[str]
    best_posting_time: str
    traffic_strategies: List[str]
    error: Optional[str] = None
    core_keywords: Optional[List[KeywordData]] = None
    related_phrases: Optional[List[str]] = None
    viral_hashtags: Optional[List[HashtagData]] = None
    strategy_tips: Optional[List[str]] = None
    content_titles: Optional[List[str]] = None
    hashtags: Optional[List[str]] = None

# ---------------------------------------------------------------------------
# Grammar Correction
# ---------------------------------------------------------------------------

class GrammarRequest(BaseModel):
    text: str

class GrammarCorrection(BaseModel):
    original: str
    corrected: str
    error_type: str
    explanation: str

class GrammarIssue(BaseModel):
    issue_type: str
    location: str
    suggestion: str

class GrammarResponse(BaseModel):
    original_text: str
    corrected_text: str
    corrections: List[GrammarCorrection]
    issues: List[GrammarIssue]
    grammar_score: int = Field(default=85, ge=0, le=100)
    readability_score: str
    word_count: int
    sentence_count: int
    tone: str
    style_suggestions: List[str]
    error: Optional[str] = None


class BatchResponse(BaseModel):
    platform_results: dict
    error: Optional[str] = None


class BatchRequest(BaseModel):
    content: str
    platforms: List[str]