From b3896476a0e6978c0d7f6fedfb64588934a78f1e Mon Sep 17 00:00:00 2001
From: Drew DeVault <sir@cmpwn.com>
Date: Sun, 10 Mar 2019 23:45:00 -0400
Subject: Fetch valid UIDs from server after opening dir

---
 worker/imap/open.go      | 34 ++++++++++++++++++
 worker/imap/worker.go    | 12 +++++--
 worker/messages.go       | 91 ------------------------------------------------
 worker/types/messages.go | 33 ++++++++++++++++++
 4 files changed, 76 insertions(+), 94 deletions(-)
 delete mode 100644 worker/messages.go

(limited to 'worker')

diff --git a/worker/imap/open.go b/worker/imap/open.go
index d90a292..0f25c5e 100644
--- a/worker/imap/open.go
+++ b/worker/imap/open.go
@@ -1,6 +1,8 @@
 package imap
 
 import (
+	"github.com/emersion/go-imap"
+
 	"git.sr.ht/~sircmpwn/aerc2/worker/types"
 )
 
@@ -18,3 +20,35 @@ func (imapw *IMAPWorker) handleOpenDirectory(msg *types.OpenDirectory) {
 		}
 	}()
 }
+
+func (imapw *IMAPWorker) handleFetchDirectoryContents(
+	msg *types.FetchDirectoryContents) {
+
+	imapw.worker.Logger.Printf("Fetching UID list")
+
+	go func() {
+		seqSet := &imap.SeqSet{}
+		seqSet.AddRange(1, imapw.selected.Messages)
+		uid32, err := imapw.client.UidSearch(&imap.SearchCriteria{
+			SeqNum: seqSet,
+		})
+		if err != nil {
+			imapw.worker.PostMessage(&types.Error{
+				Message: types.RespondTo(msg),
+				Error:   err,
+			}, nil)
+		} else {
+			imapw.worker.Logger.Printf("Found %d UIDs", len(uid32))
+			var uids []uint64
+			for _, uid := range uid32 {
+				uids = append(uids,
+					(uint64(imapw.selected.UidValidity)<<32)|uint64(uid))
+			}
+			imapw.worker.PostMessage(&types.DirectoryContents{
+				Message: types.RespondTo(msg),
+				Uids:    uids,
+			}, nil)
+			imapw.worker.PostMessage(&types.Done{types.RespondTo(msg)}, nil)
+		}
+	}()
+}
diff --git a/worker/imap/worker.go b/worker/imap/worker.go
index f6685c1..51cb221 100644
--- a/worker/imap/worker.go
+++ b/worker/imap/worker.go
@@ -29,9 +29,10 @@ type IMAPWorker struct {
 		user     *url.Userinfo
 	}
 
-	worker  *types.Worker
-	client  *imapClient
-	updates chan client.Update
+	client   *imapClient
+	selected imap.MailboxStatus
+	updates  chan client.Update
+	worker   *types.Worker
 }
 
 func NewIMAPWorker(worker *types.Worker) *IMAPWorker {
@@ -151,6 +152,8 @@ func (w *IMAPWorker) handleMessage(msg types.WorkerMessage) error {
 		w.handleListDirectories(msg)
 	case *types.OpenDirectory:
 		w.handleOpenDirectory(msg)
+	case *types.FetchDirectoryContents:
+		w.handleFetchDirectoryContents(msg)
 	default:
 		return errUnsupported
 	}
@@ -162,6 +165,9 @@ func (w *IMAPWorker) handleImapUpdate(update client.Update) {
 	switch update := update.(type) {
 	case *client.MailboxUpdate:
 		status := update.Mailbox
+		if w.selected.Name == status.Name {
+			w.selected = *status
+		}
 		w.worker.PostMessage(&types.DirectoryInfo{
 			Flags:    status.Flags,
 			Name:     status.Name,
diff --git a/worker/messages.go b/worker/messages.go
deleted file mode 100644
index 90fcfa0..0000000
--- a/worker/messages.go
+++ /dev/null
@@ -1,91 +0,0 @@
-package worker
-
-import (
-	"crypto/x509"
-
-	"git.sr.ht/~sircmpwn/aerc2/config"
-)
-
-type WorkerMessage interface {
-	InResponseTo() WorkerMessage
-}
-
-type Message struct {
-	inResponseTo WorkerMessage
-}
-
-func RespondTo(msg WorkerMessage) Message {
-	return Message{
-		inResponseTo: msg,
-	}
-}
-
-func (m Message) InResponseTo() WorkerMessage {
-	return m.inResponseTo
-}
-
-// Meta-messages
-
-type Done struct {
-	Message
-}
-
-type Error struct {
-	Message
-	Error error
-}
-
-type Unsupported struct {
-	Message
-}
-
-// Actions
-
-type ApproveCertificate struct {
-	Message
-	Approved bool
-}
-
-type Configure struct {
-	Message
-	Config *config.AccountConfig
-}
-
-type Connect struct {
-	Message
-}
-
-type Disconnect struct {
-	Message
-}
-
-type ListDirectories struct {
-	Message
-}
-
-type OpenDirectory struct {
-	Message
-	Directory string
-}
-
-// Messages
-
-type CertificateApprovalRequest struct {
-	Message
-	CertPool *x509.CertPool
-}
-
-type Directory struct {
-	Message
-	Attributes []string
-	Name       string
-}
-
-type DirectoryInfo struct {
-	Message
-	Flags    []string
-	Name     string
-	ReadOnly bool
-
-	Exists, Recent, Unseen int
-}
diff --git a/worker/types/messages.go b/worker/types/messages.go
index 02a3119..d44624d 100644
--- a/worker/types/messages.go
+++ b/worker/types/messages.go
@@ -2,6 +2,10 @@ package types
 
 import (
 	"crypto/x509"
+	"net/mail"
+	"time"
+
+	"github.com/emersion/go-imap"
 
 	"git.sr.ht/~sircmpwn/aerc2/config"
 )
@@ -68,6 +72,20 @@ type OpenDirectory struct {
 	Directory string
 }
 
+type FetchDirectoryContents struct {
+	Message
+}
+
+type FetchMessageHeaders struct {
+	Message
+	Uids imap.SeqSet
+}
+
+type FetchMessageBodies struct {
+	Message
+	Uids imap.SeqSet
+}
+
 // Messages
 
 type CertificateApprovalRequest struct {
@@ -89,3 +107,18 @@ type DirectoryInfo struct {
 
 	Exists, Recent, Unseen int
 }
+
+type DirectoryContents struct {
+	Message
+	Uids []uint64
+}
+
+type MessageInfo struct {
+	Message
+	Envelope     *imap.Envelope
+	Flags        []string
+	InternalDate time.Time
+	Mail         *mail.Message
+	Size         uint32
+	Uid          uint64
+}
-- 
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