-- Showcase of the tui module's interactive prompts. Requires a terminal.
-- Esc returns nil from any prompt (handled below); Ctrl-C aborts the script.
--
-- Run with:  cargo run -- lua/tui_prompts.lua

local function banner(s)
    print("\n=== " .. s .. " ===")
end

----------------------------------------------------------------------
banner("1. confirm — yes/no")
----------------------------------------------------------------------
local go = tui.confirm("Run the whole showcase?", true, { help = "Esc anywhere skips that prompt" })
if go == nil then
    print("(Esc pressed — nil means the user backed out, false means they answered no)")
elseif not go then
    return
end

----------------------------------------------------------------------
banner("2. promptText — defaults, placeholder, suggestions")
----------------------------------------------------------------------
-- The positional default is pre-filled and editable in place.
local name = tui.promptText("Your name?", "ondra") or "anonymous"

-- suggestions: type to filter (case-insensitive substring), Tab completes.
-- opts.default (unlike the positional one) is only used on empty submit.
local editor = tui.promptText("Favorite editor?", nil, {
    placeholder = "type to autocomplete",
    suggestions = { "vim", "neovim", "emacs", "helix", "vscode", "zed" },
    default = "vim",
})

-- minLen/maxLen re-prompt inline until satisfied.
local tag = tui.promptText("Release tag? (3-10 chars)", nil, { minLen = 3, maxLen = 10 })

----------------------------------------------------------------------
banner("3. promptSelect — single and multiple choice")
----------------------------------------------------------------------
-- Single: returns the chosen string; the default sets the cursor.
local lang = tui.promptSelect("Favorite language?", "lua", {
    options = { "lua", "rust", "c", "python", "javascript" },
    help = "type to filter the list",
})

-- Multiple: space toggles, enter submits; returns an array of strings.
local toppings = tui.promptSelect("Pizza toppings?", { "cheese" }, {
    options = { "cheese", "ham", "mushrooms", "olives", "pineapple" },
    multiple = true,
    minSelected = 1,
    pageSize = 4,
})

----------------------------------------------------------------------
banner("4. Numbers and dates")
----------------------------------------------------------------------
-- promptNumber accepts any number, promptInt only whole numbers; both
-- re-prompt inline when the input doesn't parse or is out of range.
local ratio = tui.promptNumber("Quality (0-1)?", 0.8, { min = 0, max = 1 })
local port = tui.promptInt("Port?", 8080, { min = 1, max = 65535 })

-- promptDate opens a calendar; dates are YYYY-MM-DD strings both ways.
local day = tui.promptDate("Release day?", os.date("%Y-%m-%d"), {
    min = os.date("%Y-01-01"),
    max = os.date("%Y-12-31"),
    weekStart = "monday",
})

----------------------------------------------------------------------
banner("5. promptSecret — hidden input")
----------------------------------------------------------------------
-- No default parameter on purpose. display: "masked" (default) shows *,
-- "hidden" echoes nothing, "full" shows the text; toggle allows Ctrl-R.
local secret = tui.promptSecret("API token?", { minLen = 4, toggle = true })

----------------------------------------------------------------------
banner("6. promptLongText — opens $EDITOR")
----------------------------------------------------------------------
local notes
if tui.confirm("Open your editor for release notes?", false) then
    notes = tui.promptLongText("Release notes", "## " .. (tag or "next") .. "\n\n- ", { extension = ".md" })
end

----------------------------------------------------------------------
banner("Summary")
----------------------------------------------------------------------
local function show(k, v)
    if v == nil then
        v = "<comment>(skipped)</comment>"
    elseif type(v) == "table" then
        v = table.concat(v, ", ")
    end
    print(tui.styled("  <info>" .. k .. "</info>: " .. tostring(v)))
end

show("name", name)
show("editor", editor)
show("tag", tag)
show("language", lang)
show("toppings", toppings)
show("quality", ratio)
show("port", port)
show("release day", day)
show("token", secret and string.rep("*", #secret))
show("notes", notes and (#notes .. " chars"))

tui.success("Showcase finished — see lua/tui_styles.lua for the output half of the module")