148a2f432f
Core changes:
- Replace Unsplash slide pipeline with gpt-image-2 via Laravel AI SDK.
New AiImageClient builds prompts from a Blade template seeded by the
workspace's ImageStyle enum, content language, brand color (mapped to a
human-readable name via HexColorName helper) and brand description.
- Drop Template B from TemplateImageGenerator: every slide now renders as
Template A (full-bleed photo + bottom gradient + white/grey overlay).
Removes renderTemplateB, roundCorners, blendHex, ensureContrast and the
closing-slide pipeline.
- StreamPostCreation creates the Post directly and dispatches
PostCreationReady with post_id; the wizard kills its preview step and
redirects straight to the post editor on completion. Finalize endpoint
removed.
- New Workspace.image_style enum field with an 8-option visual picker
shared by /workspaces/create and /settings/workspace/brand via a single
BrandForm component (autofill is a prop). 8 sample webp thumbs ship
under public/images/branding/image-styles/.
- Media items gain optional source ('ai'|'unsplash'|'giphy') and
source_meta (recipe needed to regenerate AI images later); the gallery
picker tags Unsplash/Giphy attachments.
- Brand-color autofill: new CssColorFrequencyExtractor parses every
hex/rgb/hsl value in the homepage CSS, clusters perceptually similar
shades in CIE LAB (Delta E 76 < 12), filters neutrals and returns the
most frequent cluster. Solves Tailwind/utility-CSS sites where no
semantic --primary variable is exposed.
- Credits: gpt-image-2 metered at 15 credits/image (low quality default).
- Layout: AuthSplitLayout right column is sticky/h-svh so the form
textarea growth no longer stretches the marketing slider.
- i18n cleanup: localized labels follow the no-em-dash convention.
102 lines
2.7 KiB
PHP
102 lines
2.7 KiB
PHP
<?php
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declare(strict_types=1);
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namespace App\Support;
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/**
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* Maps a hex colour to a human-readable approximate name. Image generation
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* models follow colour names ("warm orange", "deep teal") far more reliably
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* than raw hex codes, so we translate the brand colour into the closest
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* named bucket before injecting it into the prompt.
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*
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* Returns null when the hex is malformed.
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*/
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class HexColorName
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{
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public static function approximate(string $hex): ?string
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{
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$hex = ltrim(trim($hex), '#');
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if (strlen($hex) === 3) {
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$hex = $hex[0].$hex[0].$hex[1].$hex[1].$hex[2].$hex[2];
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}
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if (strlen($hex) === 8) {
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$hex = substr($hex, 0, 6);
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}
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if (strlen($hex) !== 6 || ! ctype_xdigit($hex)) {
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return null;
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}
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$r = hexdec(substr($hex, 0, 2)) / 255;
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$g = hexdec(substr($hex, 2, 2)) / 255;
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$b = hexdec(substr($hex, 4, 2)) / 255;
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[$h, $s, $l] = self::rgbToHsl($r, $g, $b);
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// Low-saturation neutrals.
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if ($s < 0.10) {
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return match (true) {
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$l < 0.10 => 'near-black',
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$l < 0.30 => 'dark gray',
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$l < 0.70 => 'medium gray',
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$l < 0.90 => 'light gray',
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default => 'off-white',
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};
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}
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$hue = $h * 360;
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$base = match (true) {
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$hue < 10 || $hue >= 345 => 'red',
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$hue < 25 => 'red-orange',
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$hue < 45 => 'warm orange',
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$hue < 65 => 'golden yellow',
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$hue < 90 => 'yellow-green',
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$hue < 150 => 'green',
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$hue < 180 => 'teal',
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$hue < 210 => 'cyan',
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$hue < 240 => 'blue',
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$hue < 270 => 'indigo',
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$hue < 300 => 'purple',
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$hue < 345 => 'magenta',
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default => 'red',
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};
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$modifier = match (true) {
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$l < 0.25 => 'deep ',
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$l > 0.75 => 'light ',
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default => '',
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};
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return $modifier.$base;
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}
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/**
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* @return array{0: float, 1: float, 2: float} HSL components on a 0..1 scale.
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*/
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private static function rgbToHsl(float $r, float $g, float $b): array
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{
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$max = max($r, $g, $b);
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$min = min($r, $g, $b);
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$l = ($max + $min) / 2;
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if ($max === $min) {
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return [0.0, 0.0, $l];
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}
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$d = $max - $min;
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$s = $l > 0.5 ? $d / (2 - $max - $min) : $d / ($max + $min);
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$h = match (true) {
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$max === $r => ($g - $b) / $d + ($g < $b ? 6 : 0),
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$max === $g => ($b - $r) / $d + 2,
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default => ($r - $g) / $d + 4,
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};
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$h /= 6;
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return [$h, $s, $l];
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}
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}
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