feat(appstore): cache catalogs on the SD card

Select opens the cached catalog when its sidecar URL still matches, so browsing costs no network or TLS memory; Refresh fetches. Caches are replaced through a backup so an interrupted download cannot leave an empty catalog behind. Switch to structured log.debug/info/error milestones and add BinaryKeyboard, a two-button recursive text entry experiment.
2026-07-26 12:40:51 -04:00
parent 4193c25120
commit 39f51ccd48
7 changed files with 326 additions and 36 deletions
@@ -0,0 +1,122 @@
+-- DESCRIPTION: Two-button recursive keyboard experiment
+
+local KEYS = {
+    "Q", "W", "E", "R", "T", "Y", "U", "I", "O", "P",
+    "A", "S", "D", "F", "G", "H", "J", "K", "L",
+    "Z", "X", "C", "V", "B", "N", "M"
+}
+local MAX_TEXT_BYTES = 80
+
+local text = ""
+local candidates = {}
+local history = {}
+local uppercase = false
+local needsDraw = true
+local firstDraw = true
+
+local function copyKeys(source, first, last)
+    local result = {}
+    for index = first, last do result[#result + 1] = source[index] end
+    return result
+end
+
+local function resetCandidates()
+    candidates = copyKeys(KEYS, 1, #KEYS)
+    history = {}
+end
+
+local function halves()
+    local midpoint = math.ceil(#candidates / 2)
+    return copyKeys(candidates, 1, midpoint), copyKeys(candidates, midpoint + 1, #candidates)
+end
+
+local function append(value)
+    if #text + #value <= MAX_TEXT_BYTES then text = text .. value end
+end
+
+local function chooseHalf(left)
+    local leftHalf, rightHalf = halves()
+    history[#history + 1] = candidates
+    candidates = left and leftHalf or rightHalf
+
+    if #candidates == 1 then
+        local letter = candidates[1]
+        append(uppercase and letter or letter:lower())
+        resetCandidates()
+    end
+    needsDraw = true
+end
+
+local function undo()
+    if #history == 0 then
+        sys.exit()
+        return
+    end
+    candidates = history[#history]
+    history[#history] = nil
+    needsDraw = true
+end
+
+local function drawPanel(x, y, width, height, title, values)
+    gui.drawRoundedRect(x, y, width, height, 2, 8, COLOR_BLACK)
+    gui.drawText(FONT_UI_10, x + 12, y + 32, title, COLOR_BLACK, STYLE_BOLD)
+    gui.drawText(FONT_UI_12, x + 12, y + math.floor(height / 2), table.concat(values), COLOR_BLACK, STYLE_NORMAL)
+end
+
+local function render()
+    local width = gui.width()
+    local height = gui.height()
+    local margin = 20
+    local gap = 12
+    local panelWidth = math.floor((width - margin * 2 - gap) / 2)
+    local panelTop = 185
+    local panelHeight = math.min(220, height - panelTop - 100)
+    local leftHalf, rightHalf = halves()
+
+    gui.clear()
+    gui.drawCenteredText(FONT_UI_12, 24, "Binary Keyboard", COLOR_BLACK, STYLE_BOLD)
+    gui.drawRoundedRect(margin, 65, width - margin * 2, 82, 2, 8, COLOR_BLACK)
+    local visibleText = text == "" and "Type with the side buttons" or text:sub(-38)
+    gui.drawText(FONT_UI_12, margin + 12, 96, visibleText, COLOR_BLACK, STYLE_NORMAL)
+
+    local progress = string.rep("•", #history)
+    gui.drawCenteredText(FONT_UI_10, 155, progress == "" and "Choose a half" or progress, COLOR_BLACK, STYLE_NORMAL)
+    drawPanel(margin, panelTop, panelWidth, panelHeight, "LEFT SIDE", leftHalf)
+    drawPanel(margin + panelWidth + gap, panelTop, panelWidth, panelHeight, "RIGHT SIDE", rightHalf)
+
+    gui.drawButtonHints(#history == 0 and "Exit" or "Undo", "Space", "Delete", uppercase and "lower" or "UPPER")
+    gui.refresh(firstDraw and REFRESH_HALF or REFRESH_FAST)
+    firstDraw = false
+    needsDraw = false
+end
+
+function init()
+    text = ""
+    uppercase = false
+    firstDraw = true
+    needsDraw = true
+    resetCandidates()
+end
+
+function draw()
+    if input.wasPressed("up") then
+        chooseHalf(true)
+    elseif input.wasPressed("down") then
+        chooseHalf(false)
+    elseif input.wasPressed("back") then
+        undo()
+    elseif input.wasPressed("confirm") then
+        append(" ")
+        resetCandidates()
+        needsDraw = true
+    elseif input.wasPressed("left") then
+        if #text > 0 then text = text:sub(1, -2) end
+        resetCandidates()
+        needsDraw = true
+    elseif input.wasPressed("right") then
+        uppercase = not uppercase
+        needsDraw = true
+    end
+
+    if needsDraw then render() end
+end