//! Core domain models and business logic for GoingsOn.
//!
//! This crate provides the foundational types and traits for the GoingsOn
//! project management application, including:
//!
//! - **Domain Models**: [`Project`], [`Task`], [`Event`], [`Email`], and related types
//! - **Repository Traits**: Abstract data access layer for persistence
//! - **Business Logic**: Urgency calculation, recurrence handling, quick-add parsing
//! - **Error Handling**: Unified [`CoreError`] type for all operations
//!
//! # Architecture
//!
//! The crate follows a clean architecture pattern where domain models are
//! independent of persistence concerns. Repository traits define the data
//! access contract, allowing different implementations (SQLite, PostgreSQL).
//!
//! # Example
//!
//! ```rust,ignore
//! use goingson_core::{Task, Priority, TaskStatus, calculate_urgency};
//! use chrono::Utc;
//!
//! // Calculate task urgency based on priority, status, and due date
//! let urgency = calculate_urgency(
//!     &Priority::High,
//!     &TaskStatus::Pending,
//!     None,
//!     &Utc::now(),
//!     &["urgent"],
//! );
//! ```

pub mod backup_restore;
pub mod constants;
pub mod contact;
pub mod date_parser;
pub mod date_utils;
pub mod day_planning;
pub mod email_compose;
pub mod email_id;
pub mod email_sync;
pub mod error;
pub mod id_types;
pub mod models;
pub mod parser;
pub mod import;
pub mod recurrence;
pub mod repository;
pub mod search_parser;
pub mod text_utils;
pub mod monthly_review;
pub mod urgency;
pub mod validation;
pub mod weekly_review;

pub use contact::{
    ActivityItem, ActivityKind, Contact, ContactCustomField, ContactEmail, ContactEmailEntry,
    ContactPhone, NewContact, NewContactCustomField, NewContactEmail, NewContactPhone,
    NewSocialHandle, SocialHandle, UpdateContact, merge_activity,
};
pub use error::CoreError;
pub use id_types::{
    AnnotationId, AttachmentId, ContactEmailId, ContactId, ContactPhoneId, CustomFieldId,
    DailyNoteId, EmailAccountId, EmailId, EventId, MilestoneId, MonthlyGoalId,
    MonthlyReflectionId, ProjectId, SavedViewId, SocialHandleId,
    StatusTokenId, SubtaskId, SyncAccountId, TaskId, TimeSessionId, UserId, WeeklyReviewId,
};
pub use models::{
    Annotation, Attachment, BackupSettings, BlockType, CssClass, DailyNote, DbValue, Email, EmailAccount,
    EmailAuthType, EmailThread, Event, FolderSyncState, Milestone,
    MilestoneStatus, MonthlyGoal, MonthlyGoalStatus, MonthlyReflection,
    AttachmentMeta, NewAttachment, NewBackupSettings, NewEmail, NewEmailWithTracking, NewEvent, NewEventBuilder,
    NewMilestone, NewProject, NewSavedView, NewTask, NewTaskBuilder, Priority,
    Project, ParseableEnum, ProjectStatus, ProjectType, Recurrence, RecurrenceRule, MonthlySpec,
    SavedView, SortDirection,
    SyncAccount,
    PositiveMinutes, SortField, StatusToken, Subtask, Task, TaskFilterQuery, TaskSortColumn, TaskStatus, TimeSession,
    TokenState, TOKEN_KIND_COMMIT,
    TimeSummaryPanel, TimeSummaryProject, TimeTrackingSummary, roll_up_time_summary,
    UpdateEvent, UpdateProject, UpdateTask, User,
    ViewFilters, ViewType, WeeklyReview,
    format_file_size, mime_from_extension, snap_all_day_span,
};
pub use parser::{parse_quick_add, parse_quick_add_with_warnings, ParsedTask, ParseResult};
pub use date_parser::parse_natural_date;
pub use day_planning::{Conflict, TimelineItem, detect_conflicts};
pub use recurrence::{calculate_next_due, calculate_next_due_in_tz, calculate_next_due_with_day, calculate_next_due_with_day_in_tz, calculate_next_due_rich, calculate_next_due_rich_in_tz, expand_recurrence, expand_recurrence_in_tz, should_recur};
pub use repository::*;
pub use urgency::calculate_urgency;
pub use import::{
    ImportEntityType, ImportEventData, ImportExecuteResult, ImportFailure, ImportItem,
    ImportItemData, ImportOptions, ImportParseResult, ImportProjectData, ImportTaskData,
};
pub use email_id::deterministic_email_id;
pub use email_compose::{
    forward_body, forward_subject, quoted_reply_body, reply_recipients, reply_subject,
    ComposePrefill,
};
pub use validation::Validate;

/// A specialized `Result` type for core operations.
pub type Result<T> = std::result::Result<T, CoreError>;