291 lines
11 KiB
TypeScript
291 lines
11 KiB
TypeScript
"use client";
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import { useEffect, useMemo, useRef, useState } from "react";
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import { useRouter } from "next/navigation";
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import {
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Palette,
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Check,
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Loader2,
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Save,
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Undo2,
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RotateCcw,
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Pipette,
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} from "lucide-react";
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import { AdminPageHeader, AdminSection } from "@/components/admin";
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import { apiUpdateSiteSettings } from "@/lib/api";
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import { toast } from "@/lib/toast";
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import {
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ACCENT_PRESETS,
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DEFAULT_ACCENT,
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applyAccentTheme,
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deriveAccentPair,
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findPreset,
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normalizeHex,
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} from "@/lib/theme";
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// 后台「外观设置」：站点主题色预设 + 自定义取色 + 实时预览。
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// 修改时立即对整页实时预览（仅本地），保存后才写库并对所有用户生效。
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export default function AppearanceAdmin({ initialAccent }: { initialAccent: string }) {
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const router = useRouter();
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// 已保存值：空串=内置默认（靛蓝）
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const [savedHex, setSavedHex] = useState(initialAccent || "");
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const [draft, setDraft] = useState(initialAccent || DEFAULT_ACCENT);
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const [saving, setSaving] = useState(false);
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const savedRef = useRef(savedHex);
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savedRef.current = savedHex;
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const normalized = useMemo(() => normalizeHex(draft), [draft]);
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const pair = useMemo(
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() => (normalized ? deriveAccentPair(normalized) : null),
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[normalized]
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);
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const preset = useMemo(() => (normalized ? findPreset(normalized) : null), [normalized]);
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// 保存提交值：默认靛蓝落库为空串（前端不注入覆盖，保持内置令牌单一来源）
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const submitHex = normalized && normalized !== DEFAULT_ACCENT ? normalized : "";
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const dirty = (savedHex || DEFAULT_ACCENT) !== (normalized || "");
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const invalid = draft.trim() !== "" && !normalized;
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// 实时预览：合法颜色即应用；离开页面时还原为已保存值，避免未保存预览残留
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useEffect(() => {
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if (normalized) applyAccentTheme(normalized);
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return () => {
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applyAccentTheme(savedRef.current || null);
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};
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}, [normalized]);
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const handleSave = async () => {
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if (!normalized || saving) return;
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setSaving(true);
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try {
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const res = await apiUpdateSiteSettings({ accent: submitHex });
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const next = (res.accent || "").toLowerCase();
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setSavedHex(next);
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applyAccentTheme(next || null);
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router.refresh();
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toast(next ? "主题色已保存并对全站生效" : "已恢复默认主题色");
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} catch (e) {
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toast(e instanceof Error ? e.message : "保存失败", "error");
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applyAccentTheme(savedRef.current || null);
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} finally {
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setSaving(false);
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}
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};
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const discard = () => {
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setDraft(savedHex || DEFAULT_ACCENT);
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applyAccentTheme(savedHex || null);
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};
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return (
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<div className="max-w-3xl">
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<AdminPageHeader
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icon={Palette}
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title="外观设置"
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description="配置站点主题色，全站按钮、链接、选中态会统一联动"
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/>
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<div className="flex flex-col gap-4 mb-6">
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<AdminSection
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title="预设主题色"
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description="浅/暗两套色板均已调校，保证文字对比度达标"
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>
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<div className="grid grid-cols-3 sm:grid-cols-6 gap-3">
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{ACCENT_PRESETS.map((p) => {
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const active = normalized === p.light;
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const isDefault = p.light === DEFAULT_ACCENT;
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return (
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<button
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key={p.key}
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type="button"
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onClick={() => setDraft(p.light)}
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className="group flex flex-col items-center gap-2 py-3 rounded-[var(--r-sm)] border transition-colors"
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style={{
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borderColor: active ? "var(--accent)" : "var(--line)",
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background: active ? "var(--accent-soft)" : "var(--panel)",
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cursor: "pointer",
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}}
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aria-pressed={active}
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data-tip={isDefault ? `${p.name}（默认）` : p.name}
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>
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<span className="relative flex items-center justify-center">
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<span className="w-9 h-9 rounded-full overflow-hidden grid grid-rows-2 border-2 border-[var(--panel)] shadow-sm">
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<span style={{ background: p.light }} />
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<span style={{ background: p.dark }} />
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</span>
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{active && (
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<span
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className="absolute -bottom-1 -right-1 min-w-[18px] min-h-[18px] w-[18px] h-[18px] rounded-full flex items-center justify-center"
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style={{ background: "var(--accent)", color: "var(--accent-on)" }}
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>
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<Check size={11} strokeWidth={3} />
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</span>
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)}
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</span>
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<span
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className="text-[12px] leading-none"
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style={{ color: active ? "var(--accent)" : "var(--ink-2)" }}
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>
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{p.name}
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</span>
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</button>
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);
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})}
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</div>
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</AdminSection>
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<AdminSection
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title={
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<span className="inline-flex items-center gap-1.5">
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<Pipette size={15} /> 自定义颜色
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</span>
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}
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description="取色器选色或输入 HEX 值；浅色下对比度过低时会自动校正，保证按钮与文字可读"
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>
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<div className="flex flex-wrap items-center gap-3">
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<label
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className="relative w-11 h-11 rounded-[var(--r-sm)] overflow-hidden border cursor-pointer shrink-0"
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style={{ borderColor: "var(--line-2)" }}
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data-tip="打开取色器"
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>
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<input
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type="color"
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className="absolute inset-0 w-[200%] h-[200%] -translate-x-1/4 -translate-y-1/4 cursor-pointer border-0 p-0 bg-transparent"
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value={normalized || DEFAULT_ACCENT}
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onChange={(e) => setDraft(e.target.value)}
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aria-label="自定义主题色取色器"
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/>
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</label>
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<div className="flex flex-col gap-1">
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<div
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className="flex items-center rounded-[var(--r-sm)] border bg-[var(--panel)] px-3 h-11 font-mono text-[14px] w-40"
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style={{ borderColor: invalid ? "var(--danger)" : "var(--line-2)" }}
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>
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<span style={{ color: "var(--ink-3)" }}>#</span>
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<input
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value={draft.startsWith("#") ? draft.slice(1) : draft}
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onChange={(e) => setDraft("#" + e.target.value.replace(/[^0-9a-fA-F#]/g, ""))}
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className="flex-1 min-w-0 bg-transparent outline-none ml-1 uppercase"
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style={{ color: "var(--ink)" }}
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maxLength={7}
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spellCheck={false}
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aria-label="主题色 HEX 值"
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/>
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</div>
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</div>
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{pair && (
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<div className="flex items-center gap-2 text-[12px]" style={{ color: "var(--ink-3)" }}>
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<span className="inline-flex items-center gap-1.5">
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<span
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className="w-3.5 h-3.5 rounded-full border"
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style={{ background: pair.light, borderColor: "var(--line)" }}
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/>
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浅色 {pair.light}
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</span>
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<span className="inline-flex items-center gap-1.5">
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<span
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className="w-3.5 h-3.5 rounded-full border"
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style={{ background: pair.dark, borderColor: "var(--line)" }}
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/>
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暗色 {pair.dark}
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</span>
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</div>
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)}
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</div>
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{invalid && (
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<p className="mt-2.5 text-[12.5px]" style={{ color: "var(--danger)" }}>
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颜色格式无效，请输入 6 位 HEX 值（如 3B5BDB）
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</p>
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)}
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{pair?.adjusted && (
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<p className="mt-2.5 text-[12.5px]" style={{ color: "var(--gold)" }}>
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该颜色与白底对比度不足，浅色模式已自动校正为 {pair.light}（暗色模式同步派生{" "}
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{pair.dark}）
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</p>
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)}
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{preset && preset.light === DEFAULT_ACCENT && (
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<p className="mt-2.5 text-[12.5px] meta">当前为内置默认色，保存时会清除自定义配置</p>
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)}
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</AdminSection>
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<AdminSection title="实时预览">
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<div
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className="rounded-[var(--r-sm)] border p-4 space-y-4"
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style={{ borderColor: "var(--line)", background: "var(--bg)" }}
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>
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<div className="flex flex-wrap items-center gap-2.5">
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<button type="button" className="btn btn-primary btn-sm">
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<Save size={14} /> 主按钮
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</button>
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<button type="button" className="btn btn-line btn-sm">
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次要按钮
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</button>
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<a
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className="text-[13px]"
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style={{ color: "var(--accent)" }}
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href="#preview"
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onClick={(e) => e.preventDefault()}
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>
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文字链接示例
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</a>
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</div>
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<div className="flex flex-wrap items-center gap-2">
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<span className="admin-seg">未选中</span>
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<span className="admin-seg" aria-selected="true">
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选中标签
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</span>
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<span
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className="inline-flex items-center rounded-full px-3.5 py-2 text-[13.5px]"
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style={{ background: "var(--nav-active-bg)", color: "var(--nav-active-ink)" }}
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>
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导航选中态
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</span>
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</div>
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<div className="max-w-xs">
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<div className="j13-bcard" aria-current="page">
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<span
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className="j13-bcard-ico"
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style={{ background: "var(--accent-soft)", color: "var(--accent)" }}
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>
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<Palette size={16} />
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</span>
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<span className="j13-bcard-name text-[13px] flex-1">选中的板块卡片</span>
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</div>
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</div>
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</div>
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</AdminSection>
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</div>
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<div className="flex items-center justify-between gap-3 sticky bottom-5 panel !p-3.5 pl-5 z-10">
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<p className="text-[12.5px] meta hidden sm:block">
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{dirty ? "有未保存的改动，整页正处于实时预览状态" : "设置已是保存状态"}
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</p>
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<div className="flex items-center gap-2.5 ml-auto">
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{dirty && (
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<button type="button" className="btn btn-line btn-sm" onClick={discard}>
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<Undo2 size={14} /> 撤销改动
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</button>
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)}
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<button
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type="button"
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className="btn btn-line btn-sm"
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onClick={() => {
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setDraft(DEFAULT_ACCENT);
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}}
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>
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<RotateCcw size={14} /> 恢复默认
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</button>
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<button
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type="button"
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className="btn btn-primary btn-sm"
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onClick={handleSave}
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disabled={!normalized || saving || !dirty}
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>
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{saving ? <Loader2 size={14} className="animate-spin" /> : <Save size={14} />}
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保存并全站生效
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</button>
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</div>
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</div>
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</div>
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);
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}
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