-- Run: lua test/settings_calibration.lua
-- Drives the settings app on a desktop Lua, through the shared fake device. Controls are
-- pressed by label rather than by coordinate: where a row lands is layout, and layout is
-- asserted in test/ui_layout_test.cpp against the C++ the panel actually runs.
package.path = "sdcard/.lua/lib/?.lua;test/?.lua;" .. package.path

local device = require("fake_device").install()

local SETTINGS = "sdcard/.lua/apps/Settings/main.lua"
local app = device.start(SETTINGS)

local tapRow = device.tap
-- Relaunching is how a test gets a clean screen, because that is what the firmware does:
-- a new app is a new state that builds itself from nothing.
local function restart()
  app = device.start(SETTINGS)
end

-- A perfectly linear panel spanning raw 200..3800 over 320x480 must round-trip
-- to those same extremes from the two inset samples.
local inset, w, h = 30, 320, 480
local function raw(pixel, size)
  return 200 + (3800 - 200) * pixel / size
end
local s1 = { x = raw(inset, w), y = raw(inset, h) }
local s2 = { x = raw(w - inset, w), y = raw(h - inset, h) }

local x0, y0, x1, y1 = app.computeCalibration(s1, s2, w, h, inset)
assert(math.abs(x0 - 200) <= 1, "x0 " .. x0)
assert(math.abs(y0 - 200) <= 1, "y0 " .. y0)
assert(math.abs(x1 - 3800) <= 1, "x1 " .. x1)
assert(math.abs(y1 - 3800) <= 1, "y1 " .. y1)

-- A flipped panel (raw decreasing with pixel) must yield a descending range.
local s3 = { x = 3800 - raw(inset, w) + 200, y = s1.y }
local s4 = { x = 3800 - raw(w - inset, w) + 200, y = s2.y }
local fx0, _, fx1 = app.computeCalibration(s3, s4, w, h, inset)
assert(fx0 > fx1, "flipped axis should descend")

-- Timezone cycles through the picker list.
local zones = require "timezones"
restart()
tapRow "Timezone"
assert(sys.getTimezone() == zones[2].tz, "timezone " .. sys.getTimezone())
-- Cycling rebuilds the screen, which is the only way a screen changes now, so the card
-- shows the new zone and the menu is still the same size.
local beforeCycle = tree.getCount()
assert(device.labelled(zones[2].name), "timezone card did not take its new value")
assert(tree.getCount() == beforeCycle, "the rebuilt menu grew")
tapRow "Timezone"
assert(sys.getTimezone() == zones[3].tz, "timezone " .. sys.getTimezone())

-- Rotation cycles through the four quarter turns and wraps back to 0.
restart()
for _, expected in ipairs { 90, 180, 270, 0 } do
  tapRow "Rotation"
  assert(screen.getRotation() == expected, "rotation " .. screen.getRotation())
end

-- Calibration collects one sample per target and saves on the second release.
restart()
tapRow "Calibrate"
app.tick() -- release after the menu tap arms sampling
device.raw = { s1.x, s1.y }
app.tick()
device.raw = nil
app.tick()
device.raw = { s2.x, s2.y }
app.tick()
device.raw = nil
app.tick()
local saved = device.calibration
assert(saved, "calibration was not saved")
assert(math.abs(saved[1] - 200) <= 1, "saved x0 " .. saved[1])

-- WiFi controls reflect connection state without exposing configured network details on the card.
device.status = { state = "disconnected", ssid = "", ip = "", rssi = 0 }
restart()
tapRow "WiFi"
assert(not device.find "connect" and not device.find "disconnect", "unconfigured wifi has no toggle")

device.status = { state = "disconnected", ssid = "saved", ip = "", rssi = 0 }
restart()
tapRow "WiFi"
assert(device.find "connect" and not device.find "disconnect", "configured wifi can reconnect")
tapRow "connect"
assert(device.wifiReconnect, "wifi reconnect should use saved credentials")

device.status = { state = "connected", ssid = "saved", ip = "192.168.1.2", rssi = -40 }
restart()
tapRow "WiFi"
assert(device.find "disconnect" and not device.find "connect", "connected wifi can disconnect")
tapRow "disconnect"
assert(device.status.state == "disconnected" and device.status.ssid == "saved", "disconnect preserves wifi intent")

-- Open networks connect directly from scan results.
restart()
device.networks = { { ssid = "qemu", rssi = -25, secure = false } }
tapRow "WiFi"
tapRow "scan networks"
app.tick()
tapRow "qemu"
assert(device.connected, "open network should connect without a keyboard")
assert(device.connected[1] == "qemu" and device.connected[2] == "", "open wifi connect")

-- Secure networks route through the keyboard and preserve typed punctuation.
restart()
device.networks = { { ssid = "secure", rssi = -40, secure = true } }
tapRow "WiFi"
tapRow "scan networks"
app.tick()
tapRow "secure"
app.tick()

-- The keyboard is one custom node with no child per key, so its keys are reached through
-- its own geometry rather than by label. getRect() answers the same box to the test and
-- to the widget, which is what makes the two agree on where "q" is.
local keyboard = require "keyboard"
local board = device.findKind "custom"
assert(board, "the secure network did not open a keyboard")
local boardRect = { x = 0, y = 0, w = 10000, h = 10000 }

local function typeKey(label)
  local pressed
  keyboard.eachKey("lower", boardRect, function(_, keyLabel, x, y, width)
    if keyLabel == label and not pressed then
      pressed = { x = x + width // 2, y = y + 15 }
    end
  end)
  assert(pressed, "no key labelled " .. label)
  device.press(board, pressed.x, pressed.y)
end

for key in ("qemuqemu"):gmatch "." do
  typeKey(key)
end
typeKey "OK"
assert(device.connected[1] == "secure" and device.connected[2] == "qemuqemu", "secure wifi password")

print "ok"