Restructure imap pkg

1 files changed, 4 insertions, 198 deletions

diff --git a/internal/imap/client.go b/internal/imap/client.go
index 5e2546b..404c03e 100644
--- a/internal/imap/client.go
+++ b/internal/imap/client.go
@@ -1,12 +1,6 @@
 package imap
 
 import (
-	"fmt"
-	"strings"
-	"sync"
-	"time"
-
-	"github.com/emersion/go-imap"
 	imapClient "github.com/emersion/go-imap/client"
 
 	"github.com/Necoro/feed2imap-go/internal/log"
@@ -20,75 +14,21 @@ type connConf struct {
 	toplevel  Folder
 }
 
-type connection struct {
-	*connConf
-	mailboxes *mailboxes
-	c         *imapClient.Client
-}
-
-type mailboxes struct {
-	mb map[string]*imap.MailboxInfo
-	mu sync.RWMutex
-}
-
 type Client struct {
 	connConf
-	mailboxes mailboxes
+	mailboxes *mailboxes
 	commander *commander
 	connections [numberConns]*connection
 	nextFreeIndex int
 }
 
-type Folder struct {
-	str       string
-	delimiter string
-}
-
-func (f Folder) String() string {
-	return f.str
-}
-
-func (f Folder) Append(other Folder) Folder {
-	if f.delimiter != other.delimiter {
-		panic("Delimiters do not match")
-	}
-	return Folder{
-		str:       f.str + f.delimiter + other.str,
-		delimiter: f.delimiter,
-	}
-}
-
-func (mbs *mailboxes) contains(elem Folder) bool {
-	mbs.mu.RLock()
-	defer mbs.mu.RUnlock()
-
-	_, ok := mbs.mb[elem.str]
-	return ok
-}
-
-func (mbs *mailboxes) add(elem *imap.MailboxInfo) {
-	mbs.mu.Lock()
-	defer mbs.mu.Unlock()
-
-	mbs.mb[elem.Name] = elem
-}
-
-func (conn *connection) Disconnect() bool {
-	if conn != nil {
-		connected := (conn.c.State() & imap.ConnectedState) != 0
-		_ = conn.c.Logout()
-		return connected
-	}
-	return false
-}
-
 func (client *Client) Disconnect() {
 	if client != nil {
 		client.stopCommander()
 
 		connected := false
 		for _, conn := range client.connections {
-			connected = conn.Disconnect() || connected
+			connected = conn.disconnect() || connected
 		}
 
 		if connected {
@@ -97,116 +37,6 @@ func (client *Client) Disconnect() {
 	}
 }
 
-func (client *Client) folderName(path []string) Folder {
-	return Folder{
-		strings.Join(path, client.delimiter),
-		client.delimiter,
-	}
-}
-
-func (client *Client) NewFolder(path []string) Folder {
-	return client.toplevel.Append(client.folderName(path))
-}
-
-func (conn *connection) createFolder(folder string) error {
-	err := conn.c.Create(folder)
-	if err != nil {
-		return fmt.Errorf("creating folder '%s': %w", folder, err)
-	}
-
-	err = conn.c.Subscribe(folder)
-	if err != nil {
-		return fmt.Errorf("subscribing to folder '%s': %w", folder, err)
-	}
-
-	log.Printf("Created folder '%s'", folder)
-
-	return nil
-}
-
-func (conn *connection) list(folder string) (*imap.MailboxInfo, int, error) {
-	mailboxes := make(chan *imap.MailboxInfo, 10)
-	done := make(chan error, 1)
-	go func() {
-		done <- conn.c.List("", folder, mailboxes)
-	}()
-
-	found := 0
-	var mbox *imap.MailboxInfo
-	for m := range mailboxes {
-		if found == 0 {
-			mbox = m
-		}
-		found++
-	}
-
-	if err := <-done; err != nil {
-		return nil, 0, fmt.Errorf("while listing '%s': %w", folder, err)
-	}
-
-	return mbox, found, nil
-}
-
-func (conn *connection) fetchDelimiter() (string, error) {
-	mbox, _, err := conn.list("")
-	if err != nil {
-		return "", err
-	}
-
-	return mbox.Delimiter, nil
-}
-
-func (conn *connection) ensureFolder(folder Folder) error {
-	if conn.mailboxes.contains(folder) {
-		return nil
-	}
-
-	log.Printf("Checking for folder '%s'", folder)
-
-	mbox, found, err := conn.list(folder.str)
-	if err != nil {
-		return err
-	}
-
-	if mbox != nil && mbox.Delimiter != folder.delimiter {
-		panic("Delimiters do not match")
-	}
-
-	switch found {
-	case 0:
-		return conn.createFolder(folder.str)
-	case 1:
-		conn.mailboxes.add(mbox)
-		return nil
-	default:
-		return fmt.Errorf("Found multiple folders matching '%s'.", folder)
-	}
-}
-
-func (client *Client) EnsureFolder(folder Folder) error {
-	return client.commander.execute(ensureCommando{folder})
-}
-
-func (conn *connection) putMessages(folder Folder, messages []string) error {
-	if len(messages) == 0 {
-		return nil
-	}
-
-	now := time.Now()
-	for _, msg := range messages {
-		reader := strings.NewReader(msg)
-		if err := conn.c.Append(folder.str, nil, now, reader); err != nil {
-			return fmt.Errorf("uploading message to %s: %w", folder, err)
-		}
-	}
-
-	return nil
-}
-
-func (client *Client) PutMessages(folder Folder, messages []string) error {
-	return client.commander.execute(addCommando{folder, messages})
-}
-
 func (client *Client) createConnection(c *imapClient.Client) *connection{
 	if client.nextFreeIndex >= len(client.connections) {
 		panic("Too many connections")
@@ -214,7 +44,7 @@ func (client *Client) createConnection(c *imapClient.Client) *connection{
 
 	conn := &connection{
 		connConf:  &client.connConf,
-		mailboxes: &client.mailboxes,
+		mailboxes: client.mailboxes,
 		c:         c,
 	}
 
@@ -224,30 +54,6 @@ func (client *Client) createConnection(c *imapClient.Client) *connection{
 	return conn
 }
 
-func (conn *connection) startTls() error {
-	hasStartTls, err := conn.c.SupportStartTLS()
-	if err != nil {
-		return fmt.Errorf("checking for starttls for %s: %w", conn.host, err)
-	}
-
-	if hasStartTls {
-		if err = conn.c.StartTLS(nil); err != nil {
-			return fmt.Errorf("enabling starttls for %s: %w", conn.host, err)
-		}
-
-		log.Print("Connected to ", conn.host, " (STARTTLS)")
-	} else {
-		log.Print("Connected to ", conn.host, " (Plain)")
-	}
-
-	return nil
-}
-
 func NewClient() *Client {
-	return &Client{
-		mailboxes: mailboxes{
-			mb: map[string]*imap.MailboxInfo{},
-			mu: sync.RWMutex{},
-		},
-	}
+	return &Client{mailboxes: NewMailboxes()}
 }
\ No newline at end of file