use sea_orm::entity::Set;
use sea_orm::entity::prelude::*;
use uuid::Uuid;

/// 会籍三段式：`joined_at` 记录最近一次入组，`left_at` 记录退出，`banned_at` 记录封禁。
/// 同一 (organization_id, user_id) 只有一行，重新加入时复用该行并清空 `left_at`，
/// 这样审计与"这个人在这个组织的全部历史"始终落在同一处。
#[sea_orm::model]
#[derive(Clone, Debug, PartialEq, Eq, DeriveEntityModel)]
#[sea_orm(table_name = "space_members")]
pub struct Model {
    #[sea_orm(primary_key, auto_increment = false)]
    pub id: Uuid,
    #[sea_orm(unique_key = "org_user")]
    pub organization_id: Uuid,
    #[sea_orm(indexed, unique_key = "org_user")]
    pub user_id: i64,

    pub role: super::SpaceMemberRole,

    #[sea_orm(default_expr = "Expr::current_timestamp()")]
    pub joined_at: DateTimeUtc,
    pub left_at: Option<DateTimeUtc>,
    pub banned_at: Option<DateTimeUtc>,
    #[sea_orm(column_type = "String(StringLen::N(512))")]
    pub ban_reason: Option<String>,

    pub invited_by: Option<i64>,
    pub join_method: super::SpaceJoinMethod,
    #[sea_orm(indexed)]
    pub invite_id: Option<Uuid>,

    /// 成员展示别名与头像（旧 `space_members.alias_*`）。
    #[sea_orm(column_type = "String(StringLen::N(64))")]
    pub alias_name: Option<String>,
    #[sea_orm(column_type = "String(StringLen::N(512))")]
    pub alias_avatar_url: Option<String>,

    /// 通知偏好与免打扰设置（旧 `space_members` 同名列表）。
    #[sea_orm(default_value = "all")]
    pub message_notifications: super::MessageNotifications,
    #[sea_orm(default_value = false)]
    pub muted: bool,
    pub mute_until: Option<DateTimeUtc>,
    #[sea_orm(default_value = false)]
    pub mobile_push: bool,
    #[sea_orm(default_value = false)]
    pub suppress_everyone: bool,
    #[sea_orm(default_value = false)]
    pub suppress_roles: bool,
    #[sea_orm(default_value = false)]
    pub hide_muted_channels: bool,

    /// 封禁附加信息（旧 `space_bans` 的 expires_at 与四个 allow_* 位）。
    pub ban_expires_at: Option<DateTimeUtc>,
    #[sea_orm(default_value = false)]
    pub ban_allow_agent_join: bool,
    #[sea_orm(default_value = false)]
    pub ban_allow_speak: bool,
    #[sea_orm(default_value = false)]
    pub ban_allow_push_repo: bool,
    #[sea_orm(default_value = false)]
    pub ban_allow_comment_any: bool,

    pub last_active_at: Option<DateTimeUtc>,
    #[sea_orm(default_value = 1)]
    pub version: i32,

    #[sea_orm(belongs_to, from = "organization_id", to = "id", on_delete = "Cascade")]
    pub organization: BelongsTo<super::spaces::Entity>,
    #[sea_orm(belongs_to, from = "user_id", to = "id")]
    pub user: BelongsTo<super::super::users::users::Entity>,
}

#[async_trait::async_trait]
impl ActiveModelBehavior for ActiveModel {
    async fn before_save<C>(mut self, _db: &C, insert: bool) -> Result<Self, DbErr>
    where
        C: ConnectionTrait,
    {
        if insert && self.id.is_not_set() {
            self.id = Set(Uuid::now_v7());
        }
        Ok(self)
    }
}