output.zig

1// output.zig — the only file that writes to stdout2// All ANSI codes live here. No raw escape sequences elsewhere.3const std = @import("std");4const types = @import("types.zig");5const nina_version = @import("version.zig");6const Io = std.Io;78// Color constants — all ANSI codes live here only9const PINK = "\x1b[38;2;255;183;197m";10const BOLD = "\x1b[1m";11const GREEN = "\x1b[32m";12const YELLOW = "\x1b[33m";13const RED = "\x1b[31m";14const CYAN = "\x1b[36m";15const DIM = "\x1b[2m";16const RESET = "\x1b[0m";1718// kaomoji constants — all kaomoji defined here, never inlined elsewhere. Rare19// and earned: each marks one genuine moment and never repeats in one output20// block. They are plain text, not ANSI, so they survive pipes and NO_COLOR.21const KAO_FACE = "(˶ᵔ ᵕ ᵔ˶)  "; // hello — her face22const KAO_COZY = "(っ˘ω˘ς)  "; // apply start23const KAO_EXCITED = "╰(*°▽°*)╯  "; // apply success after a failure this session24const KAO_GENTLE = "( ˘ᵕ˘ )  "; // back done25const KAO_CONTENT = "( ´ ∀ ` )  "; // clean freed26const KAO_HAPPY = "( ´ ▽ ` )  "; // doctor all clear / mood all good27const KAO_SLEEPY = "(˘ω˘ )  "; // try / develop exit28const KAO_SAD = "(；ω；)  "; // network or ssh errors only — never user typos2930// Exported for TUI use (search.zig references these to avoid \x1b in that file)31pub const C_PINK = PINK;32pub const C_BOLD = BOLD;33pub const C_GREEN = GREEN;34pub const C_YELLOW = YELLOW;35pub const C_RED = RED;36pub const C_CYAN = CYAN;37pub const C_DIM = DIM;38pub const C_RESET = RESET;39pub const C_CLEAR_EOL = "\x1b[K";40pub const C_CURSOR_UP_FMT = "\x1b[{d}A";4142// Precomputed prefix strings43const HDR_C = PINK ++ ":: " ++ RESET;44const HDR_P = ":: ";45const STEP_C = "   " ++ DIM ++ "-> " ++ RESET;46const STEP_P = "   -> ";47const TEACH_C = "   " ++ DIM ++ "= " ++ RESET;48const TEACH_P = "   = ";49const ERR_C = PINK ++ ":: " ++ RED ++ "error:" ++ RESET ++ " ";50const ERR_P = ":: error: ";51const WARN_C = PINK ++ ":: " ++ YELLOW ++ "warning:" ++ RESET ++ " ";52const WARN_P = ":: warning: ";5354var _fw: Io.File.Writer = undefined;55var _w: *Io.Writer = undefined;56var color_enabled: bool = true;57var teach_enabled: bool = false;5859pub fn init(writer: *Io.Writer, io: std.Io, environ: *const std.process.Environ.Map, color_config: bool) void {60    _w = writer;61    color_enabled = color_config and62        (std.Io.File.stdout().isTty(io) catch false) and63        !environ.contains("NO_COLOR");64}6566pub fn setTeach(enabled: bool) void {67    teach_enabled = enabled;68}6970pub fn flush() void {71    _w.flush() catch {};72}7374// Whether ANSI color is active (tty + config + no NO_COLOR). Callers spawning75// child processes that colorize their own output use this to gate the child.76pub fn colorEnabled() bool {77    return color_enabled;78}7980fn c(code: []const u8) []const u8 {81    return if (color_enabled) code else "";82}8384fn hdr() []const u8 {85    return if (color_enabled) HDR_C else HDR_P;86}8788fn step() []const u8 {89    return if (color_enabled) STEP_C else STEP_P;90}9192fn teach_pfx() []const u8 {93    return if (color_enabled) TEACH_C else TEACH_P;94}9596// Raw write — used by TUI97pub fn raw(bytes: []const u8) void {98    _w.writeAll(bytes) catch {};99}100101// Formatted print — used by TUI for in-place rendering102pub fn p(comptime fmt: []const u8, args: anytype) void {103    _w.print(fmt, args) catch {};104}105106pub fn cursorUp(n: usize) void {107    if (n > 0) p("\x1b[{d}A", .{n});108}109110pub fn clearLine() void {111    p("\r\x1b[K", .{});112}113114// --- Error and warning output ---115116pub fn printError(message: []const u8, detail: ?[]const u8, suggestion: ?[]const u8) void {117    p("{s}{s}\n", .{ if (color_enabled) ERR_C else ERR_P, message });118    if (detail) |d| p("   {s}{s}{s}\n", .{ c(DIM), d, c(RESET) });119    // Actionable suggestion in cyan — the next step should catch the eye.120    if (suggestion) |s| p("   {s}-> {s}{s}\n", .{ c(CYAN), s, c(RESET) });121}122123// Like printError, but for genuine system failures (network/ssh/search). The sad124// kaomoji signals "this is on the machine, not on you" — never used for typos or125// not-found errors, which go through printError.126pub fn printSystemError(message: []const u8, detail: ?[]const u8, suggestion: ?[]const u8) void {127    p("{s}{s}{s}\n", .{ KAO_SAD, if (color_enabled) ERR_C else ERR_P, message });128    if (detail) |d| p("   {s}{s}{s}\n", .{ c(DIM), d, c(RESET) });129    if (suggestion) |s| p("   {s}-> {s}{s}\n", .{ c(CYAN), s, c(RESET) });130}131132pub fn printWarning(message: []const u8) void {133    p("{s}{s}\n", .{ if (color_enabled) WARN_C else WARN_P, message });134}135136pub fn printTeach(cmd: []const u8) void {137    if (teach_enabled) p("{s}{s}{s}\n", .{ teach_pfx(), cmd, c(RESET) });138}139140pub fn printSubstep(comptime fmt: []const u8, args: anytype) void {141    p("{s}", .{step()});142    p(fmt, args);143    p("\n", .{});144}145146// --- Confirmation prompt (returns true = yes) ---147148pub fn confirm(prompt: []const u8) bool {149    p("   {s}continue? [Y/n]  ", .{prompt});150    flush();151    var buf: [64]u8 = undefined;152    var i: usize = 0;153    while (i < buf.len) {154        const n = std.posix.read(std.posix.STDIN_FILENO, buf[i .. i + 1]) catch break;155        if (n == 0) break;156        if (buf[i] == '\n') break;157        i += 1;158    }159    const input = std.mem.trim(u8, buf[0..i], " \t");160    if (input.len == 0) return true;161    return input[0] != 'n' and input[0] != 'N';162}163164// --- Apply / rebuild ---165166pub fn applyStart(machine: []const u8) void {167    p("{s}{s}rebuilding {s}...\n", .{ KAO_COZY, hdr(), machine });168}169170// after_failure: true only when the previous apply this session failed and this171// one succeeded — the one moment that earns the excited kaomoji. Routine172// successes show no kaomoji.173pub fn applyDone(gen: u32, elapsed_ms: u64, after_failure: bool) void {174    const face = if (after_failure) KAO_EXCITED else "";175    const secs = @as(f64, @floatFromInt(elapsed_ms)) / 1000.0;176    if (elapsed_ms >= 1000) {177        p("{s}{s}generation {s}{d}{s}  {s}[{d:.1}s]{s}\n", .{ face, hdr(), c(BOLD), gen, c(RESET), c(DIM), secs, c(RESET) });178    } else {179        p("{s}{s}generation {s}{d}{s}\n", .{ face, hdr(), c(BOLD), gen, c(RESET) });180    }181}182183pub fn applyFailed(translated: []const u8) void {184    p("{s}build failed\n", .{if (color_enabled) ERR_C else ERR_P});185    if (translated.len > 0) p("   {s}{s}{s}\n", .{ c(DIM), translated, c(RESET) });186    p("   {s}-> nina doctor{s}\n", .{ c(DIM), c(RESET) });187}188189pub fn applyDry(machine: []const u8) void {190    p("{s}dry run  {s}\n", .{ hdr(), machine });191}192193pub fn applyDryDone() void {194    p("{s}no changes applied\n", .{hdr()});195}196197// --- Check ---198199pub fn checkStart(machine: []const u8) void {200    p("{s}checking {s}...\n", .{ hdr(), machine });201}202203pub fn checkOk() void {204    p("{s}{s}ok{s}\n", .{ hdr(), c(GREEN), c(RESET) });205}206207pub fn checkFailed(msg: []const u8) void {208    p("{s}config invalid\n", .{if (color_enabled) ERR_C else ERR_P});209    if (msg.len > 0) p("   {s}{s}{s}\n", .{ c(DIM), msg, c(RESET) });210}211212// --- Back / go ---213214pub fn backStart(machine: []const u8, from: u32, to: u32) void {215    p("{s}rolling back  {s}  gen {d} -> gen {d}\n", .{ hdr(), machine, from, to });216}217218pub fn goStart(machine: []const u8, current: u32, target: u32) void {219    p("{s}switching  {s}  gen {d} -> gen {d}\n", .{ hdr(), machine, current, target });220}221222pub fn generationDone(n: u32) void {223    p("{s}done  gen {s}{d}{s}\n", .{ hdr(), c(BOLD), n, c(RESET) });224}225226// `back` has nothing older to roll back to. This is a clean stop, not a build227// failure — the rollback would otherwise surface nixos-rebuild's confusing228// 'no profile version older than the current' as a fake build error.229pub fn alreadyOldest() void {230    p("{s}already at the oldest generation\n", .{if (color_enabled) ERR_C else ERR_P});231}232233// Like generationDone but for `back` specifically — a successful rollback earns234// the gentle kaomoji. `go` keeps the plain generationDone line.235pub fn backDone(n: u32) void {236    p("{s}{s}done  gen {s}{d}{s}\n", .{ KAO_GENTLE, hdr(), c(BOLD), n, c(RESET) });237}238239// --- History ---240241pub fn historyHeader(machine: []const u8) void {242    p("{s}generations  {s}\n\n", .{ hdr(), machine });243}244245pub fn historyRow(gen: types.GenerationInfo) void {246    if (gen.current) {247        p("   {s}{d}{s}   {s}   {s}   {s}current{s}\n", .{ c(BOLD), gen.number, c(RESET), gen.date, gen.time, c(BOLD), c(RESET) });248    } else {249        p("   {s}{d}   {s}   {s}{s}\n", .{ c(DIM), gen.number, gen.date, gen.time, c(RESET) });250    }251}252253// --- Clean ---254255pub fn cleanStart(machine: []const u8, keep: u32, total: u32) void {256    p("{s}cleaning  {s}  keeping {d} of {d}\n", .{ hdr(), machine, keep, total });257}258259// Fewer generations than the keep limit — there's nothing to collect. Avoids the260// nonsensical 'keeping 5 of 1'.261pub fn cleanNothing(machine: []const u8, total: u32) void {262    p("{s}cleaning  {s}\n\n", .{ hdr(), machine });263    p("   only {d} generation{s} — nothing to remove.\n", .{ total, if (total == 1) "" else "s" });264}265266pub fn cleanDone(freed: []const u8) void {267    p("{s}{s}freed {s}\n", .{ KAO_CONTENT, hdr(), freed });268}269270// --- Status ---271272pub fn statusHeader() void {273    p("{s}status\n\n", .{hdr()});274}275276pub fn statusRow(machine: []const u8, gen: u32, time: []const u8, size: []const u8, ok: bool) void {277    if (ok) {278        p("   {s}{s}{s}   gen {s}{d}{s}   {s}{s}   {s}{s}\n", .{ c(DIM), machine, c(RESET), c(BOLD), gen, c(RESET), c(DIM), time, size, c(RESET) });279    } else {280        p("   {s}{s}   {s}unreachable{s}\n", .{ c(RED), machine, "", c(RESET) });281    }282}283284// --- Diff ---285286pub fn diffHeader(a: u32, b: u32, machine: []const u8) void {287    p("{s}gen {d} -> gen {d}  {s}\n\n", .{ hdr(), a, b, machine });288}289290pub fn diffRow(entry: types.DiffEntry) void {291    switch (entry.op) {292        .add => p("   {s}+{s} {s}   {s}\n", .{ c(GREEN), c(RESET), entry.package, entry.new_version orelse "" }),293        .remove => p("   {s}-{s} {s}   {s}\n", .{ c(RED), c(RESET), entry.package, entry.old_version orelse "" }),294        .change => p("   {s}^{s} {s}   {s} -> {s}\n", .{ c(CYAN), c(RESET), entry.package, entry.old_version orelse "", entry.new_version orelse "" }),295    }296}297298// --- Doctor ---299300pub fn doctorHeader(machine: []const u8) void {301    p("{s}diagnosing  {s}\n\n", .{ hdr(), machine });302}303304pub fn doctorRow(check: types.DoctorCheck) void {305    const status_str = switch (check.status) {306        .ok => if (color_enabled) GREEN ++ "ok" ++ RESET else "ok",307        .warn => if (color_enabled) YELLOW ++ "warn" ++ RESET else "warn",308        .fail => if (color_enabled) RED ++ "fail" ++ RESET else "fail",309    };310    const note_str = check.note orelse "";311    p("   {s:<16}  {s}   {s}\n", .{ check.name, status_str, note_str });312}313314pub fn doctorSummary(warnings: u32, failures: u32) void {315    if (failures > 0) {316        p("{s}{d} problems\n", .{ hdr(), failures });317    } else if (warnings > 0) {318        p("{s}{d} warnings\n", .{ hdr(), warnings });319    } else {320        p("{s}{s}{s}all good{s}\n", .{ KAO_HAPPY, hdr(), c(GREEN), c(RESET) });321    }322}323324// --- Update ---325326pub fn updateStart(machine: []const u8) void {327    p("{s}updating channels  {s}\n\n", .{ hdr(), machine });328}329330pub fn updateChannel(name: []const u8, old: ?[]const u8, new: ?[]const u8) void {331    if (old != null and new != null and !std.mem.eql(u8, old.?, new.?)) {332        p("   {s}   {s} -> {s}\n", .{ name, old.?, new.? });333    } else {334        p("   {s}   {s}no change{s}\n", .{ name, c(DIM), c(RESET) });335    }336}337338pub fn updateDone() void {339    p("\n{s}done\n", .{hdr()});340}341342// --- Upgrade ---343344pub fn upgradeStart(machine: []const u8) void {345    p("{s}upgrading  {s}\n", .{ hdr(), machine });346}347348// --- Log ---349350pub fn logHeader(machine: []const u8) void {351    p("{s}history  {s}\n\n", .{ hdr(), machine });352}353354pub fn logRow(date: []const u8, time: []const u8, action: []const u8, detail: []const u8) void {355    p("   {s}{s}  {s}{s}   {s:<12}  {s}\n", .{ c(DIM), date, time, c(RESET), action, detail });356}357358// --- Edit ---359360pub fn editOpen(path: []const u8, editor: []const u8) void {361    p("{s}opening {s}\n", .{ hdr(), path });362    printSubstep("{s}", .{editor});363    p("\n   {s}run nina check to validate before applying{s}\n", .{ c(DIM), c(RESET) });364}365366// --- Fmt ---367368pub fn fmtStart(path: []const u8) void {369    p("{s}formatting  {s}\n", .{ hdr(), path });370}371372pub fn fmtDone() void {373    p("{s}done\n", .{hdr()});374}375376pub fn fmtNeedsFormat() void {377    p("{s}needs formatting  {s}run nina fmt to fix{s}\n", .{ hdr(), c(DIM), c(RESET) });378}379380// --- Repl ---381382pub fn replStart() void {383    p("{s}nix repl  {s}nixpkgs loaded{s}  :q to exit\n", .{ hdr(), c(DIM), c(RESET) });384}385386// --- Develop ---387388pub fn developStart(pkgs: []const []const u8) void {389    p("{s}entering dev shell\n\n   ", .{hdr()});390    for (pkgs, 0..) |pkg, i| {391        if (i > 0) p("  ", .{});392        p("{s}", .{pkg});393    }394    p("\n\n   {s}exit to return{s}\n\n", .{ c(DIM), c(RESET) });395}396397pub fn developDone() void {398    p("{s}{s}back\n", .{ KAO_SLEEPY, hdr() });399}400401// --- Info ---402403pub fn infoHeader(machine: []const u8) void {404    p("{s}{s}\n\n", .{ hdr(), machine });405}406407pub fn infoRow(key: []const u8, val: []const u8) void {408    p("   {s:<12}  {s}\n", .{ key, val });409}410411// --- Boot ---412413pub fn bootHeader(machine: []const u8) void {414    p("{s}boot entries  {s}\n\n", .{ hdr(), machine });415}416417pub fn bootEntry(entry: types.BootEntry, idx: usize) void {418    if (entry.current) {419        p("   {s}> {s}{s}{s}\n", .{ c(BOLD), entry.title, if (entry.date) |d| std.fmt.allocPrint(std.heap.page_allocator, "   {s}", .{d}) catch "   " else "", c(RESET) });420    } else {421        p("   {s}  {s}{s}{s}\n", .{ c(DIM), entry.title, if (entry.date) |d| std.fmt.allocPrint(std.heap.page_allocator, "   {s}", .{d}) catch "   " else "", c(RESET) });422    }423    _ = idx;424}425426// --- Service ---427428pub fn serviceListHeader(machine: []const u8) void {429    p("{s}services  {s}\n\n", .{ hdr(), machine });430}431432pub fn serviceRow(svc: types.ServiceInfo) void {433    const state_str = switch (svc.state) {434        .active => if (color_enabled) GREEN ++ "active" ++ RESET else "active",435        .failed => if (color_enabled) RED ++ "failed" ++ RESET else "failed",436        .inactive => "inactive",437        .unknown => "unknown",438    };439    const uptime = svc.uptime orelse "";440    p("   {s:<24}  {s:<14}  {s}\n", .{ svc.name, state_str, uptime });441}442443pub fn serviceVerb(verb: []const u8, name: []const u8, machine: []const u8) void {444    p("{s}{s} {s}  {s}\n", .{ hdr(), verb, name, machine });445}446447pub fn serviceDone() void {448    p("{s}done\n", .{hdr()});449}450451pub fn serviceLogsHeader(name: []const u8, n: u32, machine: []const u8) void {452    p("{s}{s}  last {d} lines  {s}\n\n", .{ hdr(), name, n, machine });453}454455// --- Store ---456457pub fn storeInfo(info: types.StoreInfo) void {458    p("{s}store\n\n", .{hdr()});459    p("   {s:<16}  {s}\n", .{ "total", info.total_size });460    p("   {s:<16}  {d} paths\n", .{ "live", info.live_paths });461    p("   {s:<16}  {s}{d} paths{s}   {s}run nina clean{s}\n", .{ "reclaimable", c(DIM), info.reclaimable_paths, c(RESET), c(CYAN), c(RESET) });462}463464// --- Channel ---465466pub fn channelListHeader(machine: []const u8) void {467    p("{s}channels  {s}\n\n", .{ hdr(), machine });468}469470pub fn channelRow(ch: types.ChannelInfo) void {471    p("   {s:<16}  {s}\n", .{ ch.name, ch.url });472}473474// --- Flake ---475476pub fn flakeUpdateStart() void {477    p("{s}updating inputs\n\n", .{hdr()});478}479480pub fn flakeInput(input: types.FlakeInput) void {481    if (input.changed) {482        const old = if (input.old_rev) |r| r[0..@min(7, r.len)] else "?";483        const new = if (input.new_rev) |r| r[0..@min(7, r.len)] else "?";484        p("   {s:<20}  {s} -> {s}\n", .{ input.name, old, new });485    } else {486        p("   {s:<20}  {s}no change{s}\n", .{ input.name, c(DIM), c(RESET) });487    }488}489490pub fn flakeLockWritten() void {491    p("\n{s}flake.lock written\n", .{hdr()});492}493494pub fn flakeValid() void {495    p("{s}{s}valid{s}\n", .{ hdr(), c(GREEN), c(RESET) });496}497498pub fn flakeCheckStart() void {499    p("{s}checking flake\n", .{hdr()});500}501502// --- Profile ---503504pub fn profileListHeader() void {505    p("{s}profile packages\n\n", .{hdr()});506}507508pub fn profileRow(attr: []const u8, pkg_version: []const u8, description: []const u8) void {509    p("   {s:<24}  {s:<12}  {s}\n", .{ attr, pkg_version, description });510}511512// --- Install / Remove / Try ---513514pub fn installStart(pkg: []const u8, path: types.InstallPath) void {515    const path_str = switch (path) {516        .profile => "profile",517        .system => "system",518    };519    p("{s}installing {s}{s}{s}  {s}\n", .{ hdr(), c(PINK), pkg, c(RESET), path_str });520}521522pub fn installDone(pkg: []const u8) void {523    p("{s}{s}{s}{s} installed  {s}available now{s}\n", .{ hdr(), c(PINK), pkg, c(RESET), c(DIM), c(RESET) });524}525526pub fn removeStart(pkg: []const u8) void {527    p("{s}removing {s}{s}{s}\n", .{ hdr(), c(PINK), pkg, c(RESET) });528}529530// Plain-language health summary. No kaomoji, no hearts — just the facts.531pub fn mood(machine: []const u8, state: []const u8, gen: u32, age: []const u8, size: []const u8) void {532    const healthy = std.mem.eql(u8, state, "running");533    const verdict = if (healthy) "all good" else state;534    const color = if (healthy) GREEN else YELLOW;535    const face = if (healthy) KAO_HAPPY else "";536    p("{s}{s}{s}  {s}{s}{s}\n", .{ face, hdr(), machine, c(color), verdict, c(RESET) });537    if (age.len > 0 or size.len > 0) {538        p("   generation {d}, last applied {s}, {s} system closure\n", .{ gen, age, size });539    } else {540        p("   generation {d}\n", .{gen});541    }542}543544pub fn installEditorPrompt(pkg: []const u8, config_path: []const u8, line: u32, editor: []const u8) void {545    p("{s}opening {s}  add {s}{s}{s} to systemPackages\n", .{ hdr(), config_path, c(PINK), pkg, c(RESET) });546    const cmd = std.fmt.allocPrint(std.heap.page_allocator, "{s} {s} +{d}", .{ editor, config_path, line }) catch editor;547    printSubstep("{s}", .{cmd});548    p("\n   {s}save and close when done{s}\n\n", .{ c(DIM), c(RESET) });549}550551pub fn installSelectPrompt(pkg: []const u8, pkg_version: []const u8) void {552    p("{s}{s}{s}{s}  {s}\n\n", .{ hdr(), c(PINK), pkg, c(RESET), pkg_version });553    p("   [i] profile install    {s}instant  no rebuild{s}\n", .{ c(DIM), c(RESET) });554    p("   [s] system install     {s}opens editor  requires apply{s}\n", .{ c(DIM), c(RESET) });555    p("   [t] try now            {s}exits when done{s}\n\n", .{ c(DIM), c(RESET) });556    p("   > ", .{});557    flush();558}559560pub fn tryStart(pkg: []const u8) void {561    p("{s}trying {s}{s}{s}  exit when done\n", .{ hdr(), c(PINK), pkg, c(RESET) });562}563564pub fn tryDone() void {565    p("{s}{s}back\n", .{ KAO_SLEEPY, hdr() });566}567568// --- List ---569570pub fn listHeader(machine: []const u8) void {571    p("{s}packages  {s}\n\n", .{ hdr(), machine });572}573574pub fn listSection(title: []const u8) void {575    p("   {s}{s}{s}\n", .{ c(DIM), title, c(RESET) });576}577578// Padded name so the version column lines up into a clean two-column table.579pub fn listPkg(name: []const u8, pkg_version: []const u8) void {580    p("   {s}{s:<16}{s}  {s}{s}{s}\n", .{ c(PINK), name, c(RESET), c(DIM), pkg_version, c(RESET) });581}582583pub fn blankLine() void {584    p("\n", .{});585}586587// --- Hello ---588589pub fn hello(machines: []const types.Machine) void {590    p("{s}{s}nina\n\n", .{ KAO_FACE, hdr() });591    for (machines) |m| {592        const kind = if (m.local) "local" else "ssh";593        const detail = if (m.local) "default" else m.host orelse "";594        p("   {s}{s}{s}   {s}   {s}\n", .{ c(DIM), m.name, c(RESET), kind, detail });595    }596    p("\n", .{});597    const quick = [_][2][]const u8{598        .{ "apply",         "rebuild and switch" },599        .{ "search <q>",    "find packages" },600        .{ "install <pkg>", "add to profile or system" },601        .{ "status",        "machine health" },602        .{ "back",          "roll back one generation" },603        .{ "update",        "refresh channels" },604    };605    for (quick) |cmd| {606        p("   {s:<16}  {s}{s}{s}\n", .{ cmd[0], c(DIM), cmd[1], c(RESET) });607    }608    p("\n", .{});609}610611// --- Help ---612613pub fn help() void {614    p("{s}nina  {s}nixos helper{s}\n\n", .{ hdr(), c(DIM), c(RESET) });615    const cmds = [_][2][]const u8{616        .{ "apply", "rebuild and switch" },617        .{ "back", "roll back one generation" },618        .{ "go <n>", "switch to generation n" },619        .{ "history", "list all generations" },620        .{ "clean", "remove old generations" },621        .{ "search <q>", "find packages" },622        .{ "install <pkg>", "add to profile or system" },623        .{ "remove <pkg>", "remove from profile or system" },624        .{ "try <pkg>", "test without installing" },625        .{ "list", "show installed packages" },626        .{ "edit", "open configuration.nix" },627        .{ "check", "validate config" },628        .{ "diff", "changes between generations" },629        .{ "status", "machine health" },630        .{ "update", "refresh channels" },631        .{ "upgrade", "update and rebuild" },632        .{ "log", "operation history" },633        .{ "doctor", "diagnose issues" },634        .{ "mood", "plain-language health" },635        .{ "develop", "enter dev shell" },636        .{ "flake", "flake management" },637        .{ "build", "build a package" },638        .{ "run", "run without installing" },639        .{ "service", "manage services" },640        .{ "store", "nix store tools" },641        .{ "channel", "manage channels" },642        .{ "profile", "user profile packages" },643        .{ "info", "system information" },644        .{ "boot", "boot entries" },645        .{ "fmt", "format configuration.nix" },646        .{ "repl", "nix repl with nixpkgs" },647        .{ "option <q>", "search nixos options" },648        .{ "pkg", "inspect packages" },649        .{ "pin", "pin flake inputs" },650        .{ "hash", "compute nix hash" },651        .{ "fetch", "fetch and hash a url" },652        .{ "goodbye",       "uninstall nina" },653        .{ "hello",        "list machines" },654        .{ "help",         "this message" },655    };656    for (cmds) |cmd| {657        p("   {s:<18}  {s}{s}{s}\n", .{ cmd[0], c(DIM), cmd[1], c(RESET) });658    }659    p("\n   {s}flags: --on <machine>  --dry  --check  --no-apply  --last <n>  --all  --json{s}\n", .{ c(DIM), c(RESET) });660}661662pub fn version() void {663    p("{s}nina  v{s}  zig 0.16  zero dependencies\n", .{ hdr(), nina_version.VERSION });664}665666// --- Search (text output before TUI) ---667668pub fn searchResult(pkg: types.NixPackage) void {669    p("   {s}{s}{s}   {s}{s}{s}   {s}\n", .{ c(PINK), pkg.pname, c(RESET), c(DIM), pkg.version, c(RESET), pkg.description });670}671672pub fn searchHeader(query: []const u8, count: usize) void {673    p("{s}search nixpkgs {s}  {s}{d} results{s}\n\n", .{ hdr(), query, c(DIM), count, c(RESET) });674}675676// --- Gen commands ---677678pub fn genCurrent(n: u32) void {679    p("{d}\n", .{n});680}681682pub fn done() void {683    p("{s}done\n", .{hdr()});684}685686pub fn runStart(pkg: []const u8) void {687    p("{s}running {s}{s}{s}\n", .{ hdr(), c(PINK), pkg, c(RESET) });688}689690pub fn buildStart(attr: []const u8) void {691    p("{s}building {s}\n", .{ hdr(), attr });692}693694pub fn buildDone() void {695    p("{s}done\n", .{hdr()});696}697698// --- Self-update (nina update) ---699700pub fn updateSelfStart() void {701    p("{s}checking for updates\n", .{hdr()});702}703704pub fn updateSelfCurrent(ver: []const u8) void {705    p("{s}{s}nina {s} is up to date{s}\n", .{ hdr(), c(GREEN), ver, c(RESET) });706}707708pub fn updateSelfAvailable(current: []const u8, latest: []const u8) void {709    p("{s}current  {s}\n", .{ step(), current });710    p("{s}latest   {s}{s}{s}\n", .{ step(), c(BOLD), latest, c(RESET) });711}712713pub fn updateSelfDownloading(ver: []const u8, platform: []const u8) void {714    p("{s}downloading nina {s} for {s}\n", .{ step(), ver, platform });715}716717pub fn updateSelfVerifying() void {718    p("{s}verifying checksum\n", .{step()});719}720721pub fn updateSelfInstalling(install_path: []const u8) void {722    p("{s}installing to {s}\n", .{ step(), install_path });723}724725pub fn updateSelfDone(old_ver: []const u8, new_ver: []const u8) void {726    p("{s}updated  {s} {s}→{s} {s}\n", .{ hdr(), old_ver, c(DIM), c(RESET), new_ver });727}728729pub fn updateSelfNoPlatform(platform: []const u8) void {730    p("{s}no pre-built binary for {s}\n", .{ hdr(), platform });731    p("{s}check kepr.uk/nina/releases for available platforms\n", .{step()});732}733734pub fn updateSelfNetworkError() void {735    p("{s}{s}\n", .{ if (color_enabled) WARN_C else WARN_P, "could not reach kepr.uk — check your connection" });736}737738pub fn updateSelfChecksumFailed() void {739    p("{s}checksum mismatch — download may be corrupt\n", .{if (color_enabled) ERR_C else ERR_P});740    p("{s}try again or download manually from kepr.uk/nina/releases\n", .{step()});741}742743pub fn updateSelfNixManaged(new_ver: []const u8) void {744    p("{s}upgrading to {s}{s}{s} via nix profile\n", .{ step(), c(BOLD), new_ver, c(RESET) });745}746747pub fn updateSelfNixFailed() void {748    p("{s}nix profile upgrade failed\n", .{if (color_enabled) ERR_C else ERR_P});749    p("{s}try manually: nix profile upgrade '.*nina.*'\n", .{step()});750}751752pub fn updateSelfNixSystemManaged() void {753    p("{s}nina appears to be managed by your NixOS system configuration\n", .{hdr()});754    p("{s}to update: sudo nixos-rebuild switch\n", .{step()});755    p("{s}to reinstall as a profile package: curl -fsSL kepr.uk/nina/install.sh | sh\n", .{step()});756}757758// --- Goodbye / uninstall ---759760pub fn goodbyeStart() void {761    p("{s}uninstalling nina\n", .{hdr()});762}763764pub fn goodbyeFile(path: []const u8) void {765    p("{s}will remove {s}\n", .{ step(), path });766}767768pub fn goodbyeNix() void {769    p("{s}will remove nina from nix profile\n", .{step()});770    p("{s}command: nix profile remove '.*nina.*'\n", .{step()});771}772773pub fn goodbyeNixSystemManaged() void {774    p("{s}nina is managed by your NixOS system configuration\n", .{hdr()});775    p("{s}to remove: delete ~/nina.nix, then run sudo nixos-rebuild switch\n", .{step()});776    p("{s}or remove the nina import from /etc/nixos/configuration.nix directly\n", .{step()});777}778779pub fn goodbyeNixFileFound(path: []const u8) void {780    p("{s}found {s} (NixOS config snippet from the installer)\n", .{ step(), path });781}782783pub fn goodbyeDone() void {784    p("{s}goodbye! reinstall anytime: curl -fsSL kepr.uk/nina/install.sh | sh\n", .{hdr()});785}786787pub fn goodbyeFailed(msg: []const u8) void {788    p("{s}{s}\n", .{ if (color_enabled) ERR_C else ERR_P, msg });789}790791// --- Setup ---792793pub fn setupCheck() void {794    p("{s}checking nix features\n", .{hdr()});795}796797pub fn setupFeatures(nix_command: bool, flakes: bool) void {798    p("{s}nix-command  {s}{s}{s}\n", .{799        step(),800        if (nix_command) c(GREEN) else "",801        if (nix_command) "enabled" else "not enabled",802        if (nix_command) c(RESET) else "",803    });804    p("{s}flakes       {s}{s}{s}\n", .{805        step(),806        if (flakes) c(GREEN) else "",807        if (flakes) "enabled" else "not enabled",808        if (flakes) c(RESET) else "",809    });810}811812pub fn setupAllSet() void {813    p("{s}all set\n", .{hdr()});814}815816// Printed once, before the first search, when the nixpkgs registry still points817// at a remote URL. Flush so it lands before `nix registry pin` and any results.818pub fn pinningRegistry() void {819    p("{s}pinning nixpkgs for fast local search...\n", .{hdr()});820    flush();821}822823// --- Plain (non-tty) search rendering ---824// Color-gated equivalents of the raw-ANSI TUI widget, for piped/scripted search.825// Using the gated header + c() keeps ANSI out of non-tty output (NO_COLOR / pipes).826827pub fn searchPlainHeader(mode_str: []const u8, query: []const u8, count: u64) void {828    p("{s}search {s} {s}  {s}{d} results{s}\n", .{ hdr(), mode_str, query, c(DIM), count, c(RESET) });829}830831pub fn searchPlainNoResults() void {832    p("   no results\n", .{});833}834835pub fn searchPlainPackage(pname: []const u8, pkg_version: []const u8, description: []const u8, unfree: bool) void {836    if (unfree) {837        p("   {s}   {s}{s}{s}   {s}unfree{s}   {s}\n", .{ pname, c(CYAN), pkg_version, c(RESET), c(YELLOW), c(RESET), description });838    } else {839        p("   {s}   {s}{s}{s}   {s}\n", .{ pname, c(CYAN), pkg_version, c(RESET), description });840    }841}842843pub fn searchPlainOption(name: []const u8, type_str: []const u8) void {844    p("   {s}   {s}{s}{s}\n", .{ name, c(DIM), type_str, c(RESET) });845}846847pub fn searchEmptyQuery() void {848    p("{s}search needs a query  {s}e.g. nina search firefox{s}\n", .{ hdr(), c(DIM), c(RESET) });849}850851pub fn setupEnabling() void {852    p("{s}enabling experimental features\n", .{hdr()});853}854855pub fn setupDone(path: []const u8, is_nixos: bool) void {856    p("{s}wrote {s}\n", .{ step(), path });857    p("{s}done  open a new shell to pick up the change\n", .{hdr()});858    if (is_nixos) {859        printSubstep("to persist across nixos-rebuild, add to configuration.nix:", .{});860        printSubstep("  nix.settings.experimental-features = [ \"nix-command\" \"flakes\" ];", .{});861    }862}863864pub fn pinDone(input: []const u8, commit: []const u8) void {865    p("{s}pinned {s} -> {s}\n", .{ hdr(), input, commit });866}867868pub fn unpinDone(input: []const u8) void {869    p("{s}unpinned {s}\n", .{ hdr(), input });870}871872pub fn hashResult(hash: []const u8) void {873    p("{s}\n", .{hash});874}875876pub fn fetchResult(hash: []const u8, url: []const u8) void {877    _ = url;878    p("{s}\n", .{hash});879}880881pub fn storeRepairStart() void {882    p("{s}repairing store\n", .{hdr()});883}884885pub fn storeVerifyStart() void {886    p("{s}verifying store\n", .{hdr()});887}888889pub fn storeGcDone(freed: []const u8) void {890    p("{s}freed {s}\n", .{ hdr(), freed });891}892893pub fn storePath(path: []const u8) void {894    p("{s}\n", .{path});895}896897pub fn pkgResult(key: []const u8, val: []const u8) void {898    p("   {s:<16}  {s}\n", .{ key, val });899}900901pub fn channelDone() void {902    p("{s}done\n", .{hdr()});903}904905pub fn flakeShowHeader(name: []const u8) void {906    p("{s}{s}\n\n", .{ hdr(), name });907}908909pub fn flakeShowEntry(kind: []const u8, name: []const u8, desc: []const u8) void {910    p("   {s:<12}  {s:<24}  {s}\n", .{ kind, name, desc });911}