"""Pydantic schemas for the kommunikation plugin API."""

from __future__ import annotations

import uuid
from datetime import datetime
from typing import Any

from pydantic import BaseModel, Field


# ─── Conversation Schemas ───

class ParticipantResponse(BaseModel):
    id: str
    conversation_id: str
    participant_id: str | None = None
    participant_type: str
    display_name: str | None = None
    role: str
    joined_at: str | None = None


class ConversationCreate(BaseModel):
    title: str | None = None
    participant_ids: list[str] = Field(default_factory=list)
    participant_types: list[str] = Field(default_factory=lambda: ["user"])
    initial_message: str | None = None
    is_direct: bool = False


class ConversationUpdate(BaseModel):
    title: str | None = None
    is_archived: bool | None = None


class ConversationResponse(BaseModel):
    id: str
    title: str | None = None
    is_locked: bool = False
    locked_by: str | None = None
    is_direct: bool = False
    is_archived: bool = False
    is_pinned: bool = False
    created_by: str | None = None
    created_by_type: str = "user"
    last_msg_at: str | None = None
    last_msg_preview: str | None = None
    last_msg_sender_type: str | None = None
    participants: list[ParticipantResponse] = Field(default_factory=list)
    unread_count: int = 0
    metadata: dict[str, Any] = Field(default_factory=dict)


class ConversationListResponse(BaseModel):
    items: list[ConversationResponse]
    total: int


# ─── Participant Management ───

class ParticipantAdd(BaseModel):
    participant_id: str
    participant_type: str = "user"
    role: str = "member"


class ParticipantRoleUpdate(BaseModel):
    role: str = Field(..., pattern="^(admin|member|reader)$")


# ─── Message Schemas ───

class MessageBlockCreate(BaseModel):
    block_type: str
    block_data: dict[str, Any]


class MessageBlockResponse(BaseModel):
    id: str
    block_type: str
    block_data: dict[str, Any]
    sort_order: int = 0


class AttachmentCreate(BaseModel):
    file_id: str | None = None
    file_source: str = "comm"


class AttachmentResponse(BaseModel):
    id: str
    file_id: str | None = None
    file_source: str = "comm"
    file_name: str
    file_type: str
    file_size: int | None = None
    thumbnail_path: str | None = None


class MessageCreate(BaseModel):
    content: str = ""
    content_format: str = "text"
    blocks: list[MessageBlockCreate] = Field(default_factory=list)
    reply_to_id: str | None = None
    attachments: list[AttachmentCreate] = Field(default_factory=list)


class MessageUpdate(BaseModel):
    content: str | None = None
    read: bool | None = None


class MessageResponse(BaseModel):
    id: str
    conversation_id: str
    sender_id: str | None = None
    sender_type: str
    content: str = ""
    content_format: str = "text"
    metadata: dict[str, Any] = Field(default_factory=dict)
    reply_to_id: str | None = None
    is_pinned: bool = False
    created_at: str | None = None
    edited_at: str | None = None
    blocks: list[MessageBlockResponse] = Field(default_factory=list)
    attachments: list[AttachmentResponse] = Field(default_factory=list)
    reactions: list[dict[str, Any]] = Field(default_factory=list)


class MessageListResponse(BaseModel):
    items: list[MessageResponse]
    total: int
    page: int = 1
    has_more: bool = False


# ─── Reaction Schemas ───

class ReactionCreate(BaseModel):
    emoji: str


class ReactionResponse(BaseModel):
    id: str
    message_id: str
    user_id: str
    emoji: str


# ─── Read State ───

class ReadStateUpdate(BaseModel):
    last_read_msg_id: str | None = None


# ─── Mini-App Schemas ───

class MiniAppResponse(BaseModel):
    app_id: str
    name: str
    icon: str
    description: str
    plugin_name: str
    render_schema: dict[str, Any] = Field(default_factory=dict)


class MiniAppStartRequest(BaseModel):
    app_id: str
    config: dict[str, Any] = Field(default_factory=dict)


# ─── WebSocket Message Schemas ───

class WSMessage(BaseModel):
    type: str
    data: dict[str, Any] = Field(default_factory=dict)