Started with mail creation

4 files changed, 126 insertions, 3 deletions

diff --git a/go.mod b/go.mod
index 2c62fda..ac77d3e 100644
--- a/go.mod
+++ b/go.mod
@@ -5,7 +5,11 @@ go 1.14
 require (
 	github.com/PuerkitoBio/goquery v1.5.1 // indirect
 	github.com/emersion/go-imap v1.0.4
+	github.com/emersion/go-message v0.11.2 // indirect
+	github.com/jaytaylor/html2text v0.0.0-20200412013138-3577fbdbcff7 // indirect
 	github.com/mmcdole/gofeed v1.0.0-beta2.0.20200331235650-4298e4366be3
+	github.com/olekukonko/tablewriter v0.0.4 // indirect
+	github.com/ssor/bom v0.0.0-20170718123548-6386211fdfcf // indirect
 	golang.org/x/net v0.0.0-20200324143707-d3edc9973b7e // indirect
 	golang.org/x/text v0.3.2 // indirect
 	gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c
diff --git a/go.sum b/go.sum
index 42a9933..0f1fbf5 100644
--- a/go.sum
+++ b/go.sum
@@ -11,16 +11,28 @@ github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSs
 github.com/emersion/go-imap v1.0.4 h1:uiCAIHM6Z5Jwkma1zdNDWWXxSCqb+/xHBkHflD7XBro=
 github.com/emersion/go-imap v1.0.4/go.mod h1:yKASt+C3ZiDAiCSssxg9caIckWF/JG7ZQTO7GAmvicU=
 github.com/emersion/go-message v0.11.1/go.mod h1:C4jnca5HOTo4bGN9YdqNQM9sITuT3Y0K6bSUw9RklvY=
+github.com/emersion/go-message v0.11.2 h1:oxO9SQ+3wgBAQRdk07eqfkCJ26Tl8ZHF7CcpGVoE00o=
+github.com/emersion/go-message v0.11.2/go.mod h1:C4jnca5HOTo4bGN9YdqNQM9sITuT3Y0K6bSUw9RklvY=
 github.com/emersion/go-sasl v0.0.0-20191210011802-430746ea8b9b h1:uhWtEWBHgop1rqEk2klKaxPAkVDCXexai6hSuRQ7Nvs=
 github.com/emersion/go-sasl v0.0.0-20191210011802-430746ea8b9b/go.mod h1:G/dpzLu16WtQpBfQ/z3LYiYJn3ZhKSGWn83fyoyQe/k=
+github.com/emersion/go-textwrapper v0.0.0-20160606182133-d0e65e56babe h1:40SWqY0zE3qCi6ZrtTf5OUdNm5lDnGnjRSq9GgmeTrg=
 github.com/emersion/go-textwrapper v0.0.0-20160606182133-d0e65e56babe/go.mod h1:aqO8z8wPrjkscevZJFVE1wXJrLpC5LtJG7fqLOsPb2U=
+github.com/jaytaylor/html2text v0.0.0-20200412013138-3577fbdbcff7 h1:g0fAGBisHaEQ0TRq1iBvemFRf+8AEWEmBESSiWB3Vsc=
+github.com/jaytaylor/html2text v0.0.0-20200412013138-3577fbdbcff7/go.mod h1:CVKlgaMiht+LXvHG173ujK6JUhZXKb2u/BQtjPDIvyk=
+github.com/martinlindhe/base36 v1.0.0 h1:eYsumTah144C0A8P1T/AVSUk5ZoLnhfYFM3OGQxB52A=
 github.com/martinlindhe/base36 v1.0.0/go.mod h1:+AtEs8xrBpCeYgSLoY/aJ6Wf37jtBuR0s35750M27+8=
+github.com/mattn/go-runewidth v0.0.7 h1:Ei8KR0497xHyKJPAv59M1dkC+rOZCMBJ+t3fZ+twI54=
+github.com/mattn/go-runewidth v0.0.7/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
 github.com/mmcdole/gofeed v1.0.0-beta2.0.20200331235650-4298e4366be3 h1:Wy+ed15cpwtLcJYNiO4Z0wmjZHpNj4q0RsGbsoxWSMA=
 github.com/mmcdole/gofeed v1.0.0-beta2.0.20200331235650-4298e4366be3/go.mod h1:tkVcyzS3qVMlQrQxJoEH1hkTiuo9a8emDzkMi7TZBu0=
 github.com/mmcdole/goxpp v0.0.0-20181012175147-0068e33feabf h1:sWGE2v+hO0Nd4yFU/S/mDBM5plIU8v/Qhfz41hkDIAI=
 github.com/mmcdole/goxpp v0.0.0-20181012175147-0068e33feabf/go.mod h1:pasqhqstspkosTneA62Nc+2p9SOBBYAPbnmRRWPQ0V8=
+github.com/olekukonko/tablewriter v0.0.4 h1:vHD/YYe1Wolo78koG299f7V/VAS08c6IpCLn+Ejf/w8=
+github.com/olekukonko/tablewriter v0.0.4/go.mod h1:zq6QwlOf5SlnkVbMSr5EoBv3636FWnp+qbPhuoO21uA=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/ssor/bom v0.0.0-20170718123548-6386211fdfcf h1:pvbZ0lM0XWPBqUKqFU8cmavspvIl9nulOYwdy6IFRRo=
+github.com/ssor/bom v0.0.0-20170718123548-6386211fdfcf/go.mod h1:RJID2RhlZKId02nZ62WenDCkgHFerpIOmW0iT7GKmXM=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
diff --git a/internal/config/config.go b/internal/config/config.go
index 6497ce1..a37cef1 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -10,15 +10,17 @@ import (
 type Map map[string]interface{}
 
 type GlobalOptions struct {
-	Timeout      int    `yaml:"timeout"`
-	DefaultEmail string `yaml:"default-email"`
-	Target       string `yaml:"target"`
+	Timeout      int      `yaml:"timeout"`
+	DefaultEmail string   `yaml:"default-email"`
+	Target       string   `yaml:"target"`
+	Parts        []string `yaml:"parts"`
 }
 
 var DefaultGlobalOptions = GlobalOptions{
 	Timeout:      30,
 	DefaultEmail: username() + "@" + hostname(),
 	Target:       "",
+	Parts:        []string{"text", "html"},
 }
 
 type Config struct {
@@ -31,6 +33,26 @@ type Options struct {
 	InclImages *bool `yaml:"include-images"`
 }
 
+func (c *Config) WithPartText() bool {
+	for _, part := range c.Parts {
+		if part == "text" {
+			return true
+		}
+	}
+
+	return false
+}
+
+func (c *Config) WithPartHtml() bool {
+	for _, part := range c.Parts {
+		if part == "html" {
+			return true
+		}
+	}
+
+	return false
+}
+
 func hostname() (hostname string) {
 	hostname, err := os.Hostname()
 	if err != nil {
diff --git a/internal/feed/mail.go b/internal/feed/mail.go
new file mode 100644
index 0000000..d166e09
--- /dev/null
+++ b/internal/feed/mail.go
@@ -0,0 +1,85 @@
+package feed
+
+import (
+	"bytes"
+	"io"
+	"time"
+
+	"github.com/emersion/go-message/mail"
+
+	"github.com/Necoro/feed2imap-go/internal/config"
+)
+
+func address(name, address string) []*mail.Address {
+	return []*mail.Address{{name, address}}
+}
+
+func fromAdress(feed Feed, item feeditem, cfg config.Config) []*mail.Address {
+	switch {
+	case item.Item.Author != nil && item.Item.Author.Email != "":
+		return address(item.Item.Author.Name, item.Item.Author.Email)
+	case item.Item.Author != nil && item.Item.Author.Name != "":
+		return address(item.Item.Author.Name, cfg.DefaultEmail)
+	case item.Feed.Author != nil && item.Feed.Author.Email != "":
+		return address(item.Feed.Author.Name, item.Feed.Author.Email)
+	case item.Feed.Author != nil && item.Feed.Author.Name != "":
+		return address(item.Feed.Author.Name, cfg.DefaultEmail)
+	default:
+		return address(feed.Name, cfg.DefaultEmail)
+	}
+}
+
+func asMail(feed Feed, item feeditem, cfg config.Config) (string, error) {
+	var b bytes.Buffer
+
+	var h mail.Header
+	h.SetAddressList("From", fromAdress(feed, item, cfg))
+	h.SetAddressList("To", address(feed.Name, cfg.DefaultEmail))
+
+	{ // date
+		date := item.Item.PublishedParsed
+		if date == nil {
+			now := time.Now()
+			date = &now
+		}
+		h.SetDate(*date)
+	}
+	{ // subject
+		subject := item.Item.Title
+		if subject == "" {
+			subject = item.Item.Published
+		}
+		if subject == "" {
+			subject = item.Item.Link
+		}
+		h.SetSubject(subject)
+	}
+
+	mw, err := mail.CreateWriter(&b, h)
+	if err != nil {
+		return "", err
+	}
+
+	if cfg.WithPartText() {
+		tw, err := mw.CreateInline()
+		if err != nil {
+			return "", err
+		}
+
+		var th mail.InlineHeader
+		th.SetContentType("text/plain", map[string]string{"charset": "utf-8", "format": "flowed"})
+
+		w, err := tw.CreatePart(th)
+		if err != nil {
+			return "", err
+		}
+		_, _ = io.WriteString(w, "Who are you?")
+
+		_ = w.Close()
+		_ = tw.Close()
+	}
+
+	_ = mw.Close()
+
+	return b.String(), nil
+}