1package repo
2
3import (
4 "bytes"
5 "fmt"
6 "soft-serve/git"
7 "soft-serve/tui/style"
8 "strconv"
9 "text/template"
10
11 "github.com/charmbracelet/bubbles/viewport"
12 tea "github.com/charmbracelet/bubbletea"
13 "github.com/charmbracelet/glamour"
14 "github.com/charmbracelet/lipgloss"
15 "github.com/muesli/reflow/truncate"
16 "github.com/muesli/reflow/wordwrap"
17 "github.com/muesli/reflow/wrap"
18)
19
20const (
21 glamourMaxWidth = 120
22 repoNameMaxWidth = 32
23)
24
25type ErrMsg struct {
26 Error error
27}
28
29type Bubble struct {
30 templateObject interface{}
31 repoSource *git.RepoSource
32 name string
33 repo *git.Repo
34 styles *style.Styles
35 readmeViewport *ViewportBubble
36 readme string
37 height int
38 heightMargin int
39 width int
40 widthMargin int
41 Active bool
42
43 // XXX: ideally, we get these from the parent as a pointer. Currently, we
44 // can't add a *tui.Config because it's an illegal import cycle. One
45 // solution would be to (rename and) move this Bubble into the parent
46 // package.
47 Host string
48 Port int64
49}
50
51func NewBubble(rs *git.RepoSource, name string, styles *style.Styles, width, wm, height, hm int, tmp interface{}) *Bubble {
52 b := &Bubble{
53 templateObject: tmp,
54 repoSource: rs,
55 name: name,
56 styles: styles,
57 heightMargin: hm,
58 widthMargin: wm,
59 readmeViewport: &ViewportBubble{
60 Viewport: &viewport.Model{},
61 },
62 }
63 b.SetSize(width, height)
64 return b
65}
66
67func (b *Bubble) Init() tea.Cmd {
68 return b.setupCmd
69}
70
71func (b *Bubble) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
72 var cmds []tea.Cmd
73 switch msg := msg.(type) {
74 case tea.WindowSizeMsg:
75 b.SetSize(msg.Width, msg.Height)
76 // XXX: if we find that longer readmes take more than a few
77 // milliseconds to render we may need to move Glamour rendering into a
78 // command.
79 md, err := b.glamourize(b.readme)
80 if err != nil {
81 return b, nil
82 }
83 b.readmeViewport.Viewport.SetContent(md)
84 }
85 rv, cmd := b.readmeViewport.Update(msg)
86 b.readmeViewport = rv.(*ViewportBubble)
87 cmds = append(cmds, cmd)
88 return b, tea.Batch(cmds...)
89}
90
91func (b *Bubble) SetSize(w, h int) {
92 b.width = w
93 b.height = h
94 b.readmeViewport.Viewport.Width = w - b.widthMargin
95 b.readmeViewport.Viewport.Height = h - lipgloss.Height(b.headerView()) - b.heightMargin
96}
97
98func (b *Bubble) GotoTop() {
99 b.readmeViewport.Viewport.GotoTop()
100}
101
102func (b Bubble) headerView() string {
103 ts := b.styles.RepoTitle
104 ns := b.styles.RepoNote
105 if b.Active {
106 ts = ts.Copy().BorderForeground(b.styles.ActiveBorderColor)
107 ns = ns.Copy().BorderForeground(b.styles.ActiveBorderColor)
108 }
109 var gc string
110 n := truncate.StringWithTail(b.name, repoNameMaxWidth, "…")
111 if n == "config" {
112 n = "Home"
113 } else {
114 gc = fmt.Sprintf("git clone %s", b.sshAddress())
115 }
116 title := ts.Render(n)
117 note := ns.Width(b.width - b.widthMargin - lipgloss.Width(title)).Render(gc)
118 return lipgloss.JoinHorizontal(lipgloss.Top, title, note)
119}
120
121func (b *Bubble) View() string {
122 header := b.headerView()
123 bs := b.styles.RepoBody.Copy()
124 if b.Active {
125 bs = bs.BorderForeground(b.styles.ActiveBorderColor)
126 }
127 body := bs.
128 Width(b.width - b.widthMargin - b.styles.RepoBody.GetVerticalFrameSize()).
129 Height(b.height - b.heightMargin - lipgloss.Height(header)).
130 Render(b.readmeViewport.View())
131 return header + body
132}
133
134func (b Bubble) sshAddress() string {
135 p := ":" + strconv.Itoa(int(b.Port))
136 if p == ":22" {
137 p = ""
138 }
139 return fmt.Sprintf("ssh://%s%s/%s", b.Host, p, b.name)
140}
141
142func (b *Bubble) setupCmd() tea.Msg {
143 r, err := b.repoSource.GetRepo(b.name)
144 if err == git.ErrMissingRepo {
145 return nil
146 }
147 if err != nil {
148 return ErrMsg{err}
149 }
150 md := r.Readme
151 if b.templateObject != nil {
152 md, err = b.templatize(md)
153 if err != nil {
154 return ErrMsg{err}
155 }
156 }
157 b.readme = md
158 md, err = b.glamourize(md)
159 if err != nil {
160 return ErrMsg{err}
161 }
162 b.readmeViewport.Viewport.SetContent(md)
163 b.GotoTop()
164 return nil
165}
166
167func (b *Bubble) templatize(mdt string) (string, error) {
168 t, err := template.New("readme").Parse(mdt)
169 if err != nil {
170 return "", err
171 }
172 buf := &bytes.Buffer{}
173 err = t.Execute(buf, b.templateObject)
174 if err != nil {
175 return "", err
176 }
177 return buf.String(), nil
178}
179
180func (b *Bubble) glamourize(md string) (string, error) {
181 // TODO: read gaps in appropriate style to remove the magic number below.
182 w := b.width - b.widthMargin - 4
183 if w > glamourMaxWidth {
184 w = glamourMaxWidth
185 }
186 tr, err := glamour.NewTermRenderer(
187 glamour.WithStandardStyle("dark"),
188 glamour.WithWordWrap(w),
189 )
190
191 if err != nil {
192 return "", err
193 }
194 mdt, err := tr.Render(md)
195 if err != nil {
196 return "", err
197 }
198 // Enforce a maximum width for cases when glamour lines run long.
199 //
200 // TODO: This should utlimately be implemented as a Glamour option.
201 mdt = wrap.String(wordwrap.String((mdt), w), w)
202 return mdt, nil
203}