//! 创意互动 Agent 领域模型。
//!
//! 本 crate 只描述会话、阶段、消息和目标绑定的纯领域事实；LLM、SSE、
//! 图片生成和 SpacetimeDB 写表均留在外层 adapter。

use serde::{Deserialize, Serialize};
#[cfg(feature = "spacetime-types")]
use spacetimedb::SpacetimeType;

pub const CREATIVE_AGENT_SESSION_ID_PREFIX: &str = "creative-session-";
pub const CREATIVE_AGENT_MESSAGE_ID_PREFIX: &str = "creative-message-";
pub const CREATIVE_AGENT_BINDING_ID_PREFIX: &str = "creative-binding-";

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub enum CreativeAgentStage {
    Idle,
    Perceiving,
    Thinking,
    Remembering,
    SelectingPuzzleTemplate,
    WaitingTemplateConfirmation,
    PlanningPuzzleLevels,
    Acting,
    Reflecting,
    Collaborating,
    TargetReady,
    WaitingUser,
    Failed,
}

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub enum CreativeAgentMessageRole {
    User,
    Assistant,
    System,
}

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub enum CreativeAgentMessageKind {
    Chat,
    Stage,
    ActionResult,
    Warning,
}

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub enum CreativeTargetPlayType {
    Puzzle,
}

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub enum CreativeTargetStage {
    PuzzleAgentWorkspace,
    PuzzleResult,
    PuzzleRuntime,
}

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct CreativeInputImageSnapshot {
    pub asset_id: Option<String>,
    pub read_url: Option<String>,
    pub thumbnail_url: Option<String>,
    pub width: Option<u32>,
    pub height: Option<u32>,
    pub summary: Option<String>,
}

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct CreativeInputSummarySnapshot {
    pub text: Option<String>,
    pub entry_context: String,
    pub images: Vec<CreativeInputImageSnapshot>,
    pub material_summary: Option<String>,
    pub unsupported_capabilities_json: String,
}

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct CreativeAgentMessageSnapshot {
    pub message_id: String,
    pub session_id: String,
    pub role: CreativeAgentMessageRole,
    pub kind: CreativeAgentMessageKind,
    pub text: String,
    pub created_at_micros: i64,
}

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct CreativeAgentTargetBindingSnapshot {
    pub binding_id: String,
    pub session_id: String,
    pub play_type: CreativeTargetPlayType,
    pub target_session_id: String,
    pub target_stage: CreativeTargetStage,
    pub result_profile_id: Option<String>,
    pub created_at_micros: i64,
}

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct CreativeAgentSessionSnapshot {
    pub session_id: String,
    pub owner_user_id: String,
    pub stage: CreativeAgentStage,
    pub input_summary: CreativeInputSummarySnapshot,
    pub messages: Vec<CreativeAgentMessageSnapshot>,
    pub puzzle_template_selection_json: Option<String>,
    pub puzzle_image_generation_plan_json: Option<String>,
    pub target_binding: Option<CreativeAgentTargetBindingSnapshot>,
    pub created_at_micros: i64,
    pub updated_at_micros: i64,
}

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct CreativeAgentSessionProcedureResult {
    pub ok: bool,
    pub session_json: Option<String>,
    pub error_message: Option<String>,
}

impl CreativeAgentStage {
    pub fn as_str(self) -> &'static str {
        match self {
            Self::Idle => "idle",
            Self::Perceiving => "perceiving",
            Self::Thinking => "thinking",
            Self::Remembering => "remembering",
            Self::SelectingPuzzleTemplate => "selecting_puzzle_template",
            Self::WaitingTemplateConfirmation => "waiting_template_confirmation",
            Self::PlanningPuzzleLevels => "planning_puzzle_levels",
            Self::Acting => "acting",
            Self::Reflecting => "reflecting",
            Self::Collaborating => "collaborating",
            Self::TargetReady => "target_ready",
            Self::WaitingUser => "waiting_user",
            Self::Failed => "failed",
        }
    }
}

impl CreativeAgentMessageRole {
    pub fn as_str(self) -> &'static str {
        match self {
            Self::User => "user",
            Self::Assistant => "assistant",
            Self::System => "system",
        }
    }
}

impl CreativeAgentMessageKind {
    pub fn as_str(self) -> &'static str {
        match self {
            Self::Chat => "chat",
            Self::Stage => "stage",
            Self::ActionResult => "action_result",
            Self::Warning => "warning",
        }
    }
}

impl CreativeTargetPlayType {
    pub fn as_str(self) -> &'static str {
        match self {
            Self::Puzzle => "puzzle",
        }
    }
}

impl CreativeTargetStage {
    pub fn as_str(self) -> &'static str {
        match self {
            Self::PuzzleAgentWorkspace => "puzzle-agent-workspace",
            Self::PuzzleResult => "puzzle-result",
            Self::PuzzleRuntime => "puzzle-runtime",
        }
    }
}