use serde::{Deserialize, Serialize};
use utoipa::ToSchema;
use uuid::Uuid;
use validator::Validate;

// --- Dictionary DTOs ---

#[derive(Debug, Serialize, ToSchema)]
pub struct DictionaryItemResp {
    pub id: Uuid,
    pub dictionary_id: Uuid,
    pub label: String,
    pub value: String,
    pub sort_order: i32,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub color: Option<String>,
}

#[derive(Debug, Serialize, ToSchema)]
pub struct DictionaryResp {
    pub id: Uuid,
    pub name: String,
    pub code: String,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub description: Option<String>,
    pub items: Vec<DictionaryItemResp>,
}

#[derive(Debug, Deserialize, Validate, ToSchema)]
pub struct CreateDictionaryReq {
    #[validate(length(min = 1, max = 100, message = "字典名称不能为空"))]
    pub name: String,
    #[validate(length(min = 1, max = 50, message = "字典编码不能为空"))]
    pub code: String,
    pub description: Option<String>,
}

#[derive(Debug, Deserialize, ToSchema)]
pub struct UpdateDictionaryReq {
    pub name: Option<String>,
    pub description: Option<String>,
}

#[derive(Debug, Deserialize, Validate, ToSchema)]
pub struct CreateDictionaryItemReq {
    #[validate(length(min = 1, max = 100, message = "标签不能为空"))]
    pub label: String,
    #[validate(length(min = 1, max = 100, message = "值不能为空"))]
    pub value: String,
    pub sort_order: Option<i32>,
    pub color: Option<String>,
}

#[derive(Debug, Deserialize, ToSchema)]
pub struct UpdateDictionaryItemReq {
    pub label: Option<String>,
    pub value: Option<String>,
    pub sort_order: Option<i32>,
    pub color: Option<String>,
}

// --- Menu DTOs ---

#[derive(Debug, Serialize, ToSchema, Clone)]
pub struct MenuResp {
    pub id: Uuid,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub parent_id: Option<Uuid>,
    pub title: String,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub path: Option<String>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub icon: Option<String>,
    pub sort_order: i32,
    pub visible: bool,
    pub menu_type: String,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub permission: Option<String>,
    pub children: Vec<MenuResp>,
}

#[derive(Debug, Deserialize, Validate, ToSchema)]
pub struct CreateMenuReq {
    pub parent_id: Option<Uuid>,
    #[validate(length(min = 1, max = 100, message = "菜单标题不能为空"))]
    pub title: String,
    pub path: Option<String>,
    pub icon: Option<String>,
    pub sort_order: Option<i32>,
    pub visible: Option<bool>,
    #[validate(length(min = 1, message = "菜单类型不能为空"))]
    pub menu_type: Option<String>,
    pub permission: Option<String>,
    pub role_ids: Option<Vec<Uuid>>,
}

#[derive(Debug, Deserialize, ToSchema)]
pub struct UpdateMenuReq {
    pub title: Option<String>,
    pub path: Option<String>,
    pub icon: Option<String>,
    pub sort_order: Option<i32>,
    pub visible: Option<bool>,
    pub permission: Option<String>,
    pub role_ids: Option<Vec<Uuid>>,
}

#[derive(Debug, Deserialize, Validate, ToSchema)]
pub struct BatchSaveMenusReq {
    #[validate(length(min = 1, message = "菜单列表不能为空"))]
    pub menus: Vec<MenuItemReq>,
}

#[derive(Debug, Serialize, Deserialize, Validate, ToSchema)]
pub struct MenuItemReq {
    pub id: Option<Uuid>,
    pub parent_id: Option<Uuid>,
    #[validate(length(min = 1, max = 100, message = "菜单标题不能为空"))]
    pub title: String,
    pub path: Option<String>,
    pub icon: Option<String>,
    pub sort_order: Option<i32>,
    pub visible: Option<bool>,
    pub menu_type: Option<String>,
    pub permission: Option<String>,
    pub role_ids: Option<Vec<Uuid>>,
}

// --- Setting DTOs ---

#[derive(Debug, Serialize, ToSchema)]
pub struct SettingResp {
    pub id: Uuid,
    pub scope: String,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub scope_id: Option<Uuid>,
    pub setting_key: String,
    pub setting_value: serde_json::Value,
}

#[derive(Debug, Deserialize, Validate, ToSchema)]
pub struct UpdateSettingReq {
    pub setting_value: serde_json::Value,
}

/// 内部参数结构体，用于减少 SettingService::set 的参数数量。
pub struct SetSettingParams {
    pub key: String,
    pub scope: String,
    pub scope_id: Option<Uuid>,
    pub value: serde_json::Value,
}

// --- Numbering Rule DTOs ---

#[derive(Debug, Serialize, ToSchema)]
pub struct NumberingRuleResp {
    pub id: Uuid,
    pub name: String,
    pub code: String,
    pub prefix: String,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub date_format: Option<String>,
    pub seq_length: i32,
    pub seq_start: i32,
    pub seq_current: i64,
    pub separator: String,
    pub reset_cycle: String,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub last_reset_date: Option<String>,
}

#[derive(Debug, Deserialize, Validate, ToSchema)]
pub struct CreateNumberingRuleReq {
    #[validate(length(min = 1, max = 100, message = "规则名称不能为空"))]
    pub name: String,
    #[validate(length(min = 1, max = 50, message = "规则编码不能为空"))]
    pub code: String,
    pub prefix: Option<String>,
    pub date_format: Option<String>,
    pub seq_length: Option<i32>,
    pub seq_start: Option<i32>,
    pub separator: Option<String>,
    pub reset_cycle: Option<String>,
}

#[derive(Debug, Deserialize, ToSchema)]
pub struct UpdateNumberingRuleReq {
    pub name: Option<String>,
    pub prefix: Option<String>,
    pub date_format: Option<String>,
    pub seq_length: Option<i32>,
    pub separator: Option<String>,
    pub reset_cycle: Option<String>,
}

#[derive(Debug, Serialize, ToSchema)]
pub struct GenerateNumberResp {
    pub number: String,
}

// --- Theme DTOs (stored via settings) ---

#[derive(Debug, Serialize, Deserialize, ToSchema, Clone)]
pub struct ThemeResp {
    #[serde(skip_serializing_if = "Option::is_none")]
    pub primary_color: Option<String>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub logo_url: Option<String>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub sidebar_style: Option<String>,
}

// --- Language DTOs (stored via settings) ---

#[derive(Debug, Serialize, ToSchema)]
pub struct LanguageResp {
    pub code: String,
    pub name: String,
    pub is_active: bool,
}

#[derive(Debug, Deserialize, ToSchema)]
pub struct UpdateLanguageReq {
    pub is_active: bool,
}