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zack 2024-10-26 21:51:02 -04:00
parent faa9599849
commit a86e79d652
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2 changed files with 1896 additions and 31 deletions
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assets/node-packages.nix
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lib/zoeyscomputer_web/live/gist_live/og_image.ex
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@ -14,6 +14,7 @@ defmodule ZoeyscomputerWeb.GistLive.OgImage do
@code_start_x 80 @code_start_x 80
@font_size 24 @font_size 24
@char_width 12 @char_width 12
@space_width @char_width
defp font_face_styles do defp font_face_styles do
""" """
@ -52,24 +53,32 @@ defmodule ZoeyscomputerWeb.GistLive.OgImage do
font-family: 'Iosevka' !important; font-family: 'Iosevka' !important;
} }
.background { fill: #0D1117; } /* Catppuccin Macchiato Theme Colors */
.title { fill: #ffffff; font-family: system-ui, -apple-system, sans-serif; } .background { fill: #24273a; } /* base */
.description { fill: #8B949E; font-family: system-ui, -apple-system, sans-serif; } .title { fill: #cad3f5; font-family: system-ui, -apple-system, sans-serif; } /* text */
.code-background { fill: #161B22; } .description { fill: #8087a2; font-family: system-ui, -apple-system, sans-serif; } /* overlay1 */
.code-background { fill: #1e2030; } /* crust */
/* Syntax Highlighting Colors */ /* Syntax Highlighting Colors - Catppuccin Macchiato */
.c, .cm, .cp, .c1, .cs { fill: #768390; } /* Comment */ .c, .cm, .cp, .c1, .cs { fill: #8087a2; } /* Comment - overlay1 */
.k, .kc, .kd, .kn, .kp, .kr, .kt { fill: #f47067; } /* Keyword */ .k, .kc, .kd, .kn, .kp, .kr, .kt { fill: #c6a0f6; } /* Keyword - mauve */
.s, .sb, .sc, .sd, .s2, .se, .sh, .si, .sx, .sr, .s1, .ss { fill: #96d0ff; } /* String */ .s, .sb, .sc, .sd, .s2, .se, .sh, .si, .sx, .sr, .s1, .ss { fill: #a6da95; } /* String - green */
.n, .na, .nc, .no, .nd, .ni, .ne, .nf, .nl, .nn, .nx, .py, .nt, .nv, .vc, .vg, .vi { fill: #adbac7; } /* Name */ .n, .na, .nc, .no, .nd, .ni, .ne, .nf, .nl, .nn, .nx, .py, .nt, .nv, .vc, .vg, .vi { fill: #8aadf4; } /* Name - blue */
.nb, .bp { fill: #f69d50; } /* Built-in */ .nb, .bp { fill: #f5a97f; } /* Built-in - peach */
.m, .mf, .mh, .mi, .mo, .il { fill: #6cb6ff; } /* Number */ .m, .mf, .mh, .mi, .mo, .il { fill: #f5bde6; } /* Number - pink */
.o, .ow { fill: #f47067; } /* Operator */ .o, .ow { fill: #91d7e3; } /* Operator - sky */
.p { fill: #adbac7; } /* Punctuation */ .p { fill: #cad3f5; } /* Punctuation - text */
.w { fill: #E6EDF3; } /* Whitespace */ .w { fill: #cad3f5; } /* Whitespace - text */
.l { fill: #6cb6ff; } /* Literal */ .l { fill: #8aadf4; } /* Literal - blue */
.default { fill: #E6EDF3; } /* Default text color */ .default { fill: #cad3f5; } /* Default text color - text */
</style> </style>
<!-- Gradient definition -->
<linearGradient id="fade" x1="0" y1="0" x2="0" y2="1">
<stop offset="0%" stop-color="#1e2030" stop-opacity="0"/>
<stop offset="50%" stop-color="#1e2030" stop-opacity="0"/>
<stop offset="100%" stop-color="#181926" stop-opacity="1"/>
</linearGradient>
</defs> </defs>
<!-- Background --> <!-- Background -->
@ -85,12 +94,15 @@ defmodule ZoeyscomputerWeb.GistLive.OgImage do
</text> </text>
<!-- Code Preview Background --> <!-- Code Preview Background -->
<rect x="60" y="160" width="1080" height="420" class="code-background" rx="8"/> <rect x="60" y="160" width="1080" height="600" class="code-background" rx="8"/>
<!-- Code Content --> <!-- Code Content -->
<g font-family="Iosevka" font-size="#{@font_size}"> <g font-family="Iosevka" font-size="#{@font_size}">
#{code_lines} #{code_lines}
</g> </g>
<!-- Gradient Overlay -->
<rect x="0" y="160" width="1200" height="600" fill="url(#fade)" rx="8"/>
</svg> </svg>
""" """
end end
@ -100,43 +112,64 @@ defmodule ZoeyscomputerWeb.GistLive.OgImage do
|> String.split("\n") |> String.split("\n")
|> Enum.with_index() |> Enum.with_index()
|> Enum.map_join("\n", fn {line, index} -> |> Enum.map_join("\n", fn {line, index} ->
indent_level = calculate_indent_level(line)
y_position = @code_start_y + index * @line_height y_position = @code_start_y + index * @line_height
render_line(String.trim(line), y_position) render_line(String.trim_leading(line), y_position, indent_level)
end) end)
end end
defp render_line("", _y_position), do: "" defp calculate_indent_level(line) do
leading_spaces =
line
|> String.replace(~r/^(\s+).*$/, "\\1")
|> String.length()
defp render_line(line, y_position) do div(leading_spaces, 2)
end
defp render_line("", _y_position, _indent), do: ""
defp render_line(line, y_position, indent_level) do
spans = parse_spans(line) spans = parse_spans(line)
indent_offset = indent_level * 2 * @space_width
spans spans
|> Enum.reduce({[], 0}, fn {content, class}, {spans, x_offset} -> |> Enum.reduce({[], indent_offset}, fn {content, class}, {spans, x_offset} ->
span = render_span(content, class, x_offset, y_position) unescaped_content = unescape_html(content)
{[span | spans], x_offset + String.length(content)} span = render_span(unescaped_content, class, x_offset, y_position)
{[span | spans], x_offset + String.length(unescaped_content) * @char_width}
end) end)
|> elem(0) |> elem(0)
|> Enum.reverse() |> Enum.reverse()
|> Enum.join("\n") |> Enum.join("\n")
end end
defp unescape_html(text) do
text
|> String.replace("&amp;", "&")
|> String.replace("&lt;", "<")
|> String.replace("&gt;", ">")
|> String.replace("&quot;", "\"")
|> String.replace("&#39;", "'")
|> String.replace("&#x27;", "'")
|> String.replace("&#x2F;", "/")
|> String.replace("&#47;", "/")
|> String.replace("&nbsp;", " ")
end
defp parse_spans(""), do: [] defp parse_spans(""), do: []
defp parse_spans(line) do defp parse_spans(line) do
# Handle non-span text first
line line
|> String.split(~r{(<span.*?>|</span>)}, include_captures: true) |> String.split(~r{(<span.*?>|</span>)}, include_captures: true)
|> Enum.reduce({[], nil}, fn |> Enum.reduce({[], nil}, fn
# Opening span tag
<<"<span class=\"", rest::binary>>, {acc, nil} -> <<"<span class=\"", rest::binary>>, {acc, nil} ->
class = rest |> String.replace_suffix("\">", "") class = rest |> String.replace_suffix("\">", "")
{acc, class} {acc, class}
# Closing span tag
"</span>", {acc, _class} -> "</span>", {acc, _class} ->
{acc, nil} {acc, nil}
# Content within or outside spans
content, {acc, class} when byte_size(content) > 0 -> content, {acc, class} when byte_size(content) > 0 ->
{[{content, class || "default"} | acc], class} {[{content, class || "default"} | acc], class}
@ -148,8 +181,10 @@ defmodule ZoeyscomputerWeb.GistLive.OgImage do
end end
defp render_span(content, class, x_offset, y_position) when byte_size(content) > 0 do defp render_span(content, class, x_offset, y_position) when byte_size(content) > 0 do
x = @code_start_x + x_offset * @char_width x = @code_start_x + x_offset
"<text x=\"#{x}\" y=\"#{y_position}\" class=\"#{class}\">#{escape_text(content)}</text>" # Re-escape the content for the SVG output
safe_content = escape_text(content)
"<text x=\"#{x}\" y=\"#{y_position}\" class=\"#{class}\">#{safe_content}</text>"
end end
defp render_span(_, _, _, _), do: "" defp render_span(_, _, _, _), do: ""