feat(week): seven-day range-bar card adapted from Conky-Mirage

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

1 files changed, 74 insertions, 0 deletions

diff --git a/widgets/week.lua b/widgets/week.lua
new file mode 100644
index 0000000..262121f
--- /dev/null
+++ b/widgets/week.lua
@@ -0,0 +1,74 @@
+-- Week: seven days of glyph and min-to-max range bar.
+--
+-- Adapted from the Conky-Mirage theme's week tile by alexsson-xexpanderx
+-- (see lib/weather.lua). Each bar sits on the week's overall min..max scale,
+-- so a warm day reads as a bar further right, not just a longer one.
+
+local card = require 'lib.card'
+local data = require 'lib.data'
+local weather = require 'lib.weather'
+
+local M = {}
+
+local function draw_days(cr, x, y, w, h, colors, days, S)
+  local n = #days
+  if n == 0 then return end
+  local step = h / n
+  local size = math.min(S * 0.32, step * 0.55)
+  if size < 8 then return end
+
+  local lo, hi = math.huge, -math.huge
+  for _, d in ipairs(days) do
+    if d.min then lo = math.min(lo, d.min) end
+    if d.max then hi = math.max(hi, d.max) end
+  end
+  local span = (hi > lo) and (hi - lo) or 1
+  -- Columns as fractions of the width: day | glyph | min | bar | max.
+  local gx, minx = x + w * 0.20, x + w * 0.42
+  local bx0, bx1 = x + w * 0.46, x + w * 0.84
+  local function bx(t) return bx0 + (bx1 - bx0) * (t - lo) / span end
+
+  cairo_set_line_cap(cr, CAIRO_LINE_CAP_ROUND)
+  for i, d in ipairs(days) do
+    local by = y + step * (i - 0.5) + size * 0.35   -- baseline, centred in the row
+    card.font(cr, card.FONT_MONO, size, false)
+    card.rgba(cr, colors.label)
+    card.text(cr, x, by, i == 1 and 'TODAY'
+      or (d.t and os.date('%a', d.t):upper() or '--'))
+    card.rgba(cr, colors.highlight)
+    card.text(cr, gx, by, weather.icon(d.code, true))
+    card.rgba(cr, colors.value)
+    card.text_right(cr, minx, by, weather.deg(d.min))
+    card.text_right(cr, x + w, by, weather.deg(d.max))
+
+    -- The track spans the week; the fill is this day.
+    local my = by - size * 0.35
+    cairo_set_line_width(cr, size * 0.35)
+    card.rgba(cr, colors.rule, 0.35)
+    cairo_move_to(cr, bx0, my)
+    cairo_line_to(cr, bx1, my)
+    cairo_stroke(cr)
+    if d.min and d.max then
+      card.rgba(cr, colors.highlight)
+      cairo_move_to(cr, bx(d.min), my)
+      cairo_line_to(cr, bx(d.max), my)
+      cairo_stroke(cr)
+    end
+  end
+  cairo_set_line_cap(cr, CAIRO_LINE_CAP_BUTT)
+end
+
+function M.draw(cr, rect, colors)
+  local inner = card.card(cr, rect, colors)
+  local w = weather.parse(data.slurp(weather.CACHE))
+  if not w then
+    card.notice(cr, inner, colors, 'WEEK', 'no weather data', 'bin/weather-fetch.sh')
+    return
+  end
+  local y, S = card.standard(cr, inner, colors, {
+    icon = card.ICON.week, title = 'WEEK', share = 0.25,
+  })
+  draw_days(cr, inner.x, y, inner.w, inner.y + inner.h - y, colors, w.days, S)
+end
+
+return M