use serde::{Deserialize, Serialize};

/// Role assigned to an organization member.
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub enum MemberRole {
    /// Full administrative access
    Admin,
    /// Standard user access
    Member,
    /// Read-only access
    Viewer,
}

impl MemberRole {
    /// Returns the display label for a member role.
    pub fn label(&self) -> &'static str {
        match self {
            Self::Admin => "Admin",
            Self::Member => "Member",
            Self::Viewer => "Viewer",
        }
    }

    /// Returns all available roles for populating dropdowns.
    pub fn all() -> &'static [Self] {
        &[Self::Admin, Self::Member, Self::Viewer]
    }
}

/// A member of the organization.
///
/// # Fields
///
/// * `id` - Unique member identifier
/// * `name` - Display name
/// * `email` - Email address
/// * `role` - Assigned role within the organization
/// * `joined_at` - ISO 8601 join date
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub struct OrgMember {
    pub id: String,
    pub name: String,
    pub email: String,
    pub role: MemberRole,
    pub joined_at: String,
}

/// A pricing plan tier.
///
/// # Fields
///
/// * `id` - Unique plan identifier
/// * `name` - Plan display name (e.g. "Starter", "Team", "Enterprise")
/// * `price_eur` - Monthly price in euros
/// * `features` - List of included features
/// * `highlighted` - Whether this plan should be visually emphasized
/// * `max_seats` - Maximum number of seats, None for unlimited
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub struct PricingPlan {
    pub id: String,
    pub name: String,
    pub price_eur: u32,
    pub features: Vec<String>,
    pub highlighted: bool,
    pub max_seats: Option<u32>,
}

/// Billing usage statistics for the current cycle.
///
/// # Fields
///
/// * `seats_used` - Number of active seats
/// * `seats_total` - Total seats in the plan
/// * `tokens_used` - Tokens consumed this billing cycle
/// * `tokens_limit` - Token limit for the billing cycle
/// * `billing_cycle_end` - ISO 8601 date when the current cycle ends
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub struct BillingUsage {
    pub seats_used: u32,
    pub seats_total: u32,
    pub tokens_used: u64,
    pub tokens_limit: u64,
    pub billing_cycle_end: String,
}