-- Showcase of the tui module's output features: styled markup, message
-- blocks, outline blocks, and the raw/screenInfo building blocks.
-- Non-interactive — safe to run piped (colors degrade to plain text).
--
-- Run with:  cargo run -- lua/tui_styles.lua

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

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banner("1. tui.styled — built-in tags")
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print(tui.styled("<info>info is bold green</info> and <error> error is white on red </error>"))
-- HTML-like shortcuts.
print(tui.styled("<b>bold</b> <i>italic</i> <u>underscore</u> <s>strikethrough</s>"))

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banner("2. Inline styles: fg / bg / options")
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print(tui.styled("<fg=magenta>named colors</>, <fg=bright-cyan>bright variants</>, <fg=gray>gray</>"))
print(tui.styled("<fg=#c0392b>hex truecolor #c0392b</> and <fg=#0af>short #0af</>"))
print(tui.styled("<bg=blue>background</> <options=bold>bold</> <options=italic,strikethrough>both</>"))
print(tui.styled("<fg=black;bg=green;options=bold> all combined in one tag </>"))
-- Shorthand: bare colors are the foreground, on-<color> the background,
-- option names apply directly; mixes with built-in names and key=value.
print(tui.styled("<red;on-white;bold>alarm</> <#f0a;u>pink underline</> <info;b>bold green</>"))

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banner("3. Custom presets — tui.addPreset")
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tui.addPreset("keyword", "fg=white;bg=magenta")
tui.addPreset("em", "i;bold") -- specs can use shorthand and reference other presets
print(tui.styled("the <keyword>local</keyword> keyword is <em>important</em>"))
tui.block("presets work as block styles too", { style = "keyword" })

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banner("4. Nesting, links, escaping")
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-- Inner tags override only what they set; the rest is inherited.
print(tui.styled("<error>outer <options=bold>bold inherits the red bg</> and back</error>"))
-- </> closes the innermost style; fg=default resets to the terminal color.
print(tui.styled("<fg=red>red <fg=default>terminal default</> red again</>"))
-- OSC-8 hyperlink (clickable in supporting terminals, plain text elsewhere).
print(tui.styled("read <href=https://example.com/docs>the docs</> for details"))
-- \< escapes a bracket; unknown tags pass through literally, never error.
print(tui.styled("literal \\<info> stays, <not-a-tag> too, a < b as well"))

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banner("5. Message blocks (Symfony style)")
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tui.success("Deployment finished without errors")
tui.warning({ "Disk usage above 80%", "Consider pruning old artifacts" })
tui.error("Build failed")
tui.caution("This will overwrite production data")
tui.info("14 files processed")
tui.note("Long messages word-wrap to the terminal width and continuation lines stay aligned under the label lorem ipsum dolor sit amet")
tui.comment("git push --force-with-lease")
-- The generic form: everything is configurable.
tui.block(
    "Custom label, style and prefix",
    { label = "HEY", style = "fg=black;bg=cyan", prefix = " > ", padding = true }
)

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banner("6. Outline blocks (colored borders, plain content)")
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tui.outlineSuccess("All tests passed")
tui.outlineWarning("3 deprecation warnings", { title = "Heads up" }) -- opts.title overrides the preset
tui.outlineBlock({ "Generic box.", "Multiple messages are separated by a blank line." }, {
    title = "Stats",
    style = "fg=magenta",
})

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banner("7. tui.raw + tui.screenInfo — progress bar building blocks")
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local info = tui.screenInfo()
print("screen:", (info.width or "?") .. "x" .. (info.height or "?"), "tty:", info.tty, "colors:", info.colors)

-- A minimal in-place progress bar: \r rewinds the line, tui.raw prints
-- without a newline and flushes. Width adapts to the terminal; without a
-- tty the \r redraw trick is pointless, so print the final state once.
local width = math.clamp((info.width or 80) - 20, 10, 40)
local start = info.tty and 0 or width
for i = start, width do
    local bar = string.rep("#", i) .. string.rep(".", width - i)
    tui.raw("\r[", bar, "] ", math.floor(i / width * 100 + 0.5), "%")
    os.sleep(0.02)
end
tui.raw("\n")