255 lines
6.1 KiB
Go
255 lines
6.1 KiB
Go
package main
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import (
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"fmt"
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"os"
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"time"
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tea "github.com/charmbracelet/bubbletea"
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"github.com/charmbracelet/lipgloss"
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)
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const (
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numRows = 6
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numCols = 7
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cellW = 10
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cellH = 1
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)
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var (
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cellStyle = lipgloss.NewStyle().Width(cellW).Height(cellH).Align(lipgloss.Center)
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selectedStyle = cellStyle.Copy().Bold(true).Background(lipgloss.Color("12")).Foreground(lipgloss.Color("15")) // Blue bg
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unselectedStyle = cellStyle.Copy().Background(lipgloss.Color("236")).Foreground(lipgloss.Color("250"))
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todayStyle = cellStyle.Copy().Background(lipgloss.Color("99")).Foreground(lipgloss.Color("15")).Bold(true) // Purple bg + white text
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headerStyle = lipgloss.NewStyle().Width(numCols * cellW).Align(lipgloss.Center).Bold(true)
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daysOfWeekStyle = lipgloss.NewStyle().Width(cellW).Align(lipgloss.Center).Bold(true)
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hourCellStyle = lipgloss.NewStyle().Width(cellW * 3).Height(cellH).Align(lipgloss.Left).PaddingLeft(1)
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hourSelectedStyle = hourCellStyle.Copy().Bold(true).Background(lipgloss.Color("12")).Foreground(lipgloss.Color("15"))
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)
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type viewMode int
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const (
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monthView viewMode = iota
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hourlyView
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)
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type model struct {
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cursorRow int
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cursorCol int
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monthIndex int
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year int
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startOffset int // weekday offset where day 1 starts
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daysInMonth int
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mode viewMode
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// For hourly view
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selectedDay int
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hourCursor int // which hour (0-23) is selected in hourly view
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}
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func (m model) Init() tea.Cmd {
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return nil
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}
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func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
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switch m.mode {
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case monthView:
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return m.updateMonthView(msg)
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case hourlyView:
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return m.updateHourlyView(msg)
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default:
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return m, nil
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}
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}
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func (m model) updateMonthView(msg tea.Msg) (tea.Model, tea.Cmd) {
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firstDay := time.Date(m.year, time.Month(m.monthIndex+1), 1, 0, 0, 0, 0, time.UTC)
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m.startOffset = int(firstDay.Weekday())
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m.daysInMonth = time.Date(m.year, time.Month(m.monthIndex+2), 0, 0, 0, 0, 0, time.UTC).Day()
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switch msg := msg.(type) {
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case tea.KeyMsg:
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switch msg.String() {
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case "ctrl+c", "q":
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return m, tea.Quit
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case "a": // Previous month
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if m.monthIndex == 0 {
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m.monthIndex = 11
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m.year--
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} else {
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m.monthIndex--
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}
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first := time.Date(m.year, time.Month(m.monthIndex+1), 1, 0, 0, 0, 0, time.UTC)
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offset := int(first.Weekday())
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m.cursorRow = offset / numCols
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m.cursorCol = offset % numCols
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return m, nil
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case "d": // Next month
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if m.monthIndex == 11 {
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m.monthIndex = 0
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m.year++
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} else {
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m.monthIndex++
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}
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first := time.Date(m.year, time.Month(m.monthIndex+1), 1, 0, 0, 0, 0, time.UTC)
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offset := int(first.Weekday())
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m.cursorRow = offset / numCols
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m.cursorCol = offset % numCols
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return m, nil
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case "up":
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if m.cursorRow > 0 {
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m.cursorRow--
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}
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case "down":
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if m.cursorRow < numRows-1 {
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m.cursorRow++
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}
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case "left":
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if m.cursorCol > 0 {
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m.cursorCol--
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}
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case "right":
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if m.cursorCol < numCols-1 {
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m.cursorCol++
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}
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case "enter":
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// Calculate selected day based on cursor
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dayIndex := m.cursorRow*numCols + m.cursorCol
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if dayIndex >= m.startOffset && dayIndex < m.startOffset+m.daysInMonth {
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m.selectedDay = dayIndex - m.startOffset + 1
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m.hourCursor = 0
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m.mode = hourlyView
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}
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}
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// Clamp cursor to valid days
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dayIndex := m.cursorRow*numCols + m.cursorCol
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if dayIndex < m.startOffset || dayIndex >= m.startOffset+m.daysInMonth {
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m.cursorRow = m.startOffset / numCols
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m.cursorCol = m.startOffset % numCols
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}
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return m, nil
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default:
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return m, nil
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}
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}
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func (m model) updateHourlyView(msg tea.Msg) (tea.Model, tea.Cmd) {
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switch msg := msg.(type) {
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case tea.KeyMsg:
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switch msg.String() {
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case "esc":
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m.mode = monthView
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return m, nil
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case "ctrl+c", "q":
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return m, tea.Quit
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case "up":
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if m.hourCursor > 0 {
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m.hourCursor--
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}
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case "down":
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if m.hourCursor < 23 {
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m.hourCursor++
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}
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}
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}
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return m, nil
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}
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func (m model) View() string {
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switch m.mode {
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case monthView:
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return m.viewMonth()
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case hourlyView:
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return m.viewHourly()
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default:
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return ""
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}
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}
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func (m model) viewMonth() string {
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var out string
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monthTime := time.Date(m.year, time.Month(m.monthIndex+1), 1, 0, 0, 0, 0, time.UTC)
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header := headerStyle.Render(monthTime.Format("January 2006"))
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out += header + "\n"
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weekdays := []string{"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"}
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for _, day := range weekdays {
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out += daysOfWeekStyle.Render(day)
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}
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out += "\n"
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day := 1
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for r := 0; r < numRows; r++ {
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for c := 0; c < numCols; c++ {
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cellNum := r*numCols + c
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var content string
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if cellNum >= m.startOffset && day <= m.daysInMonth {
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content = fmt.Sprintf("%2d", day)
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if r == m.cursorRow && c == m.cursorCol {
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out += selectedStyle.Render(content)
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} else {
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today := time.Now()
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isToday := m.year == today.Year() &&
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m.monthIndex == int(today.Month())-1 &&
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day == today.Day()
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if isToday {
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out += todayStyle.Render(content)
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} else {
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out += unselectedStyle.Render(content)
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}
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}
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day++
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} else {
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out += cellStyle.Render("")
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}
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}
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out += "\n"
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}
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out += "\n[a]/[d] to change month, arrows to move, enter to select a day, q to quit."
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return out
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}
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func (m model) viewHourly() string {
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var out string
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dateHeader := fmt.Sprintf("Schedule for %04d-%02d-%02d", m.year, m.monthIndex+1, m.selectedDay)
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out += headerStyle.Render(dateHeader) + "\n\n"
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for hour := 0; hour < 24; hour++ {
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label := fmt.Sprintf("%02d:00 - %02d:00", hour, hour+1)
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if hour == m.hourCursor {
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out += hourSelectedStyle.Render(label) + "\n"
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} else {
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out += hourCellStyle.Render(label) + "\n"
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}
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}
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out += "\nPress ESC to return to month view, q to quit."
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return out
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}
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func main() {
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now := time.Now()
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start := time.Date(now.Year(), now.Month(), 1, 0, 0, 0, 0, time.UTC)
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offset := int(start.Weekday())
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p := tea.NewProgram(model{
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year: now.Year(),
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monthIndex: int(now.Month()) - 1,
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cursorRow: offset / numCols,
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cursorCol: offset % numCols,
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startOffset: offset,
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mode: monthView,
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})
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if err := p.Start(); err != nil {
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fmt.Fprintf(os.Stderr, "error: %v\n", err)
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os.Exit(1)
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}
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}
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