# JMAP Unix Implementation

This library provides Unix-specific implementation for the core JMAP protocol.

## Overview

Jmap_unix provides the implementation needed to make actual connections to JMAP servers
using OCaml's Unix module. It handles:

- HTTP connections to JMAP endpoints
- Authentication
- Session discovery
- Request/response handling
- Blob upload/download
- High-level email operations (Jmap_unix.Email)

## Usage

```ocaml
open Jmap
open Jmap_unix

(* Create a connection to a JMAP server *)
let connect_example env =
  let ctx = Jmap_unix.create_client () in
  match Jmap_unix.quick_connect env ~host:"jmap.example.com" ~username:"user" ~password:"pass" () with
  | Ok (ctx, session) ->
      (* Use the connection for JMAP requests *)
      let builder = Jmap_unix.build ctx in
      let builder = Jmap_unix.using builder [`Core] in
      (* ... add method calls ... *)
      let response = Jmap_unix.execute env builder in
      ignore (Jmap_unix.close ctx)
  | Error err ->
      Printf.eprintf "Connection failed: %s\n" (Jmap.Error.to_string err)
```

## Email Operations

The Email module provides high-level operations for working with emails:

```ocaml
open Jmap
open Jmap_unix

(* Get an email *)
let get_email_example env ctx account_id email_id =
  match Email.get_email env ctx ~account_id ~email_id () with
  | Ok email -> Printf.printf "Got email: %s\n" (Jmap_email.Email.subject email)
  | Error err -> Printf.eprintf "Error: %s\n" (Jmap.Error.to_string err)

(* Search for unread emails *)
let search_unread env ctx account_id =
  let filter = Jmap.Methods.Filter.(["hasKeyword", `String "$unseen"]) in
  match Email.search_emails env ctx ~account_id ~filter () with
  | Ok (ids, Some emails) -> Printf.printf "Found %d unread emails\n" (List.length emails)
  | Ok (ids, None) -> Printf.printf "Found %d unread email IDs\n" (List.length ids)
  | Error err -> Printf.eprintf "Search error: %s\n" (Jmap.Error.to_string err)

(* Mark emails as read *)
let mark_read env ctx account_id email_ids =
  match Email.mark_as_seen env ctx ~account_id ~email_ids () with
  | Ok () -> Printf.printf "Marked %d emails as read\n" (List.length email_ids)
  | Error err -> Printf.eprintf "Mark error: %s\n" (Jmap.Error.to_string err)
```

## Dependencies

- jmap (core library)
- jmap-email (email types and helpers)
- eio (structured concurrency)
- tls-eio (TLS support)
- cohttp-eio (HTTP client)
- yojson (JSON handling)
- uri (URL parsing)