use serde::{Deserialize, Serialize};
use utoipa::ToSchema;
use uuid::Uuid;
use chrono::{DateTime, Utc};
use crate::teams::domain::entity::*;

#[derive(Debug, Serialize, Deserialize, ToSchema)]
pub struct UserInfoResponse {
    pub id: Uuid,
    pub email: String,
    pub fullname: String,
    pub avatar: Option<String>,
    pub phone_number: Option<String>,
    pub location: Option<String>,
    pub bio: Option<String>,
    pub skills: Option<Vec<String>>,
    pub is_active: Option<bool>,
}

impl From<TeamUserInfo> for UserInfoResponse {
    fn from(u: TeamUserInfo) -> Self {
        Self { id: u.id, email: u.email, fullname: u.fullname, avatar: u.avatar,
               phone_number: u.phone_number, location: u.location, bio: u.bio,
               skills: u.skills, is_active: u.is_active }
    }
}

#[derive(Debug, Serialize, Deserialize, ToSchema)]
pub struct TeamMemberResponse {
    pub id: Uuid,
    pub team_id: Uuid,
    pub user_id: Uuid,
    pub user: UserInfoResponse,
    pub role: String,
    pub status: String,
    pub joined_at: Option<DateTime<Utc>>,
}

impl From<TeamMemberEntity> for TeamMemberResponse {
    fn from(m: TeamMemberEntity) -> Self {
        Self { id: m.id, team_id: m.team_id, user_id: m.user_id,
               user: UserInfoResponse::from(m.user), role: m.role, status: m.status, joined_at: m.joined_at }
    }
}

#[derive(Debug, Serialize, Deserialize, ToSchema)]
pub struct TeamResponse {
    pub id: Uuid,
    pub name: String,
    pub description: Option<String>,
    pub city: String,
    pub visibility: String,
    pub logo: Option<String>,
    pub banner: Option<String>,
    pub leader_id: Uuid,
    pub leader: Option<UserInfoResponse>,
    pub members: Option<Vec<TeamMemberResponse>>,
    pub member_count: Option<i64>,
    pub has_submission: Option<bool>,
    pub created_at: Option<DateTime<Utc>>,
    pub updated_at: Option<DateTime<Utc>>,
}

impl From<TeamWithDetails> for TeamResponse {
    fn from(t: TeamWithDetails) -> Self {
        Self {
            id: t.id, name: t.name, description: t.description, city: t.city,
            visibility: t.visibility, logo: t.logo, banner: t.banner, leader_id: t.leader_id,
            leader: t.leader.map(UserInfoResponse::from),
            members: t.members.map(|ms| ms.into_iter().map(TeamMemberResponse::from).collect()),
            member_count: t.member_count, has_submission: t.has_submission,
            created_at: t.created_at, updated_at: t.updated_at,
        }
    }
}

#[derive(Debug, Serialize, Deserialize, ToSchema)]
pub struct CreateTeamRequest {
    pub name: String,
    pub description: Option<String>,
    pub city: String,
    pub visibility: String,
    pub logo: Option<String>,
    pub banner: Option<String>,
}

impl From<CreateTeamRequest> for CreateTeamInput {
    fn from(r: CreateTeamRequest) -> Self {
        Self { name: r.name, description: r.description, city: r.city,
               visibility: r.visibility, logo: r.logo, banner: r.banner }
    }
}

#[derive(Debug, Serialize, Deserialize, ToSchema)]
pub struct UpdateTeamRequest {
    pub name: Option<String>,
    pub description: Option<String>,
    pub city: Option<String>,
    pub visibility: Option<String>,
    pub logo: Option<String>,
    pub banner: Option<String>,
}

impl From<UpdateTeamRequest> for UpdateTeamInput {
    fn from(r: UpdateTeamRequest) -> Self {
        Self { name: r.name, description: r.description, city: r.city,
               visibility: r.visibility, logo: r.logo, banner: r.banner }
    }
}

#[derive(Debug, Deserialize, ToSchema)]
pub struct BrowseTeamsQuery {
    pub search: Option<String>,
    pub city: Option<String>,
    pub min_members: Option<i64>,
    pub max_members: Option<i64>,
    pub has_submission: Option<bool>,
    #[serde(default = "default_page")]
    pub page: i64,
    #[serde(default = "default_per_page")]
    pub per_page: i64,
}

fn default_page() -> i64 { 1 }
fn default_per_page() -> i64 { 10 }

impl From<BrowseTeamsQuery> for BrowseTeamsInput {
    fn from(q: BrowseTeamsQuery) -> Self {
        Self { search: q.search, city: q.city, min_members: q.min_members, max_members: q.max_members,
               has_submission: q.has_submission, page: q.page, per_page: q.per_page }
    }
}

#[derive(Debug, Serialize, Deserialize, ToSchema)]
pub struct TeamListResponse {
    pub data: Vec<TeamResponse>,
    pub total: i64,
    pub page: i64,
    pub per_page: i64,
}