//! 任务领域模型。
//!
//! 本文件承载任务状态、步骤、奖励、叙事绑定和进度信号等稳定值对象。

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

pub const QUEST_LOG_ID_PREFIX: &str = "questlog_";

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub enum QuestStatus {
    Active,
    ReadyToTurnIn,
    Completed,
    TurnedIn,
    Failed,
    Expired,
}

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub enum QuestNarrativeType {
    Bounty,
    Escort,
    Investigation,
    Retrieval,
    Relationship,
    Trial,
}

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub enum QuestObjectiveKind {
    DefeatHostileNpc,
    InspectTreasure,
    SparWithNpc,
    TalkToNpc,
    ReachScene,
    DeliverItem,
}

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub enum QuestRewardItemRarity {
    Common,
    Uncommon,
    Rare,
    Epic,
    Legendary,
}

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

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub enum QuestLogEventKind {
    Accepted,
    Progressed,
    Completed,
    CompletionAcknowledged,
    TurnedIn,
}

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub enum QuestSignalKind {
    HostileNpcDefeated,
    TreasureInspected,
    NpcSparCompleted,
    NpcTalkCompleted,
    SceneReached,
    ItemDelivered,
}

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct QuestRewardItem {
    pub item_id: String,
    pub category: String,
    pub name: String,
    pub description: Option<String>,
    pub quantity: u32,
    pub rarity: QuestRewardItemRarity,
    pub tags: Vec<String>,
    pub stackable: bool,
    pub stack_key: String,
    pub equipment_slot_id: Option<QuestRewardEquipmentSlot>,
}

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

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct QuestRewardIntel {
    pub rumor_text: String,
    pub unlocked_scene_id: Option<String>,
}

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct QuestRewardSnapshot {
    pub affinity_bonus: i32,
    pub currency: i64,
    pub experience: Option<u32>,
    pub items: Vec<QuestRewardItem>,
    pub intel: Option<QuestRewardIntel>,
    pub story_hint: Option<String>,
}

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct QuestNarrativeBindingSnapshot {
    pub origin: QuestNarrativeOrigin,
    pub narrative_type: QuestNarrativeType,
    pub dramatic_need: String,
    pub issuer_goal: String,
    pub player_hook: String,
    pub world_reason: String,
    pub followup_hooks: Vec<String>,
}

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct QuestObjectiveSnapshot {
    pub kind: QuestObjectiveKind,
    pub target_hostile_npc_id: Option<String>,
    pub target_npc_id: Option<String>,
    pub target_scene_id: Option<String>,
    pub target_item_id: Option<String>,
    pub required_count: u32,
}

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct QuestStepSnapshot {
    pub step_id: String,
    pub kind: QuestObjectiveKind,
    pub target_hostile_npc_id: Option<String>,
    pub target_npc_id: Option<String>,
    pub target_scene_id: Option<String>,
    pub target_item_id: Option<String>,
    pub required_count: u32,
    pub progress: u32,
    pub title: String,
    pub reveal_text: String,
    pub complete_text: String,
}

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct QuestRecordSnapshot {
    pub quest_id: String,
    pub runtime_session_id: String,
    pub story_session_id: Option<String>,
    pub actor_user_id: String,
    pub issuer_npc_id: String,
    pub issuer_npc_name: String,
    pub scene_id: Option<String>,
    pub chapter_id: Option<String>,
    pub act_id: Option<String>,
    pub thread_id: Option<String>,
    pub contract_id: Option<String>,
    pub title: String,
    pub description: String,
    pub summary: String,
    pub objective: QuestObjectiveSnapshot,
    pub progress: u32,
    pub status: QuestStatus,
    pub completion_notified: bool,
    pub reward: QuestRewardSnapshot,
    pub reward_text: String,
    pub narrative_binding: QuestNarrativeBindingSnapshot,
    pub steps: Vec<QuestStepSnapshot>,
    pub active_step_id: Option<String>,
    pub visible_stage: u32,
    pub hidden_flags: Vec<String>,
    pub discovered_fact_ids: Vec<String>,
    pub related_carrier_ids: Vec<String>,
    pub consequence_ids: Vec<String>,
    pub created_at_micros: i64,
    pub updated_at_micros: i64,
    pub completed_at_micros: Option<i64>,
    pub turned_in_at_micros: Option<i64>,
}

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct QuestHostileNpcDefeatedSignal {
    pub scene_id: Option<String>,
    pub hostile_npc_id: String,
}

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

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct QuestNpcSparCompletedSignal {
    pub npc_id: String,
}

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct QuestNpcTalkCompletedSignal {
    pub npc_id: String,
}

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct QuestSceneReachedSignal {
    pub scene_id: String,
}

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct QuestItemDeliveredSignal {
    pub npc_id: String,
    pub item_id: String,
    pub quantity: u32,
}

#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub enum QuestProgressSignal {
    HostileNpcDefeated(QuestHostileNpcDefeatedSignal),
    TreasureInspected(QuestTreasureInspectedSignal),
    NpcSparCompleted(QuestNpcSparCompletedSignal),
    NpcTalkCompleted(QuestNpcTalkCompletedSignal),
    SceneReached(QuestSceneReachedSignal),
    ItemDelivered(QuestItemDeliveredSignal),
}

impl QuestStatus {
    pub fn is_terminal(self) -> bool {
        matches!(self, Self::TurnedIn | Self::Failed | Self::Expired)
    }

    pub fn is_reward_ready(self) -> bool {
        matches!(self, Self::ReadyToTurnIn | Self::Completed)
    }
}

impl QuestLogEventKind {
    pub fn as_str(self) -> &'static str {
        match self {
            Self::Accepted => "accepted",
            Self::Progressed => "progressed",
            Self::Completed => "completed",
            Self::CompletionAcknowledged => "completion_ack",
            Self::TurnedIn => "turned_in",
        }
    }
}

impl From<&QuestProgressSignal> for QuestSignalKind {
    fn from(value: &QuestProgressSignal) -> Self {
        match value {
            QuestProgressSignal::HostileNpcDefeated(_) => Self::HostileNpcDefeated,
            QuestProgressSignal::TreasureInspected(_) => Self::TreasureInspected,
            QuestProgressSignal::NpcSparCompleted(_) => Self::NpcSparCompleted,
            QuestProgressSignal::NpcTalkCompleted(_) => Self::NpcTalkCompleted,
            QuestProgressSignal::SceneReached(_) => Self::SceneReached,
            QuestProgressSignal::ItemDelivered(_) => Self::ItemDelivered,
        }
    }
}