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@chhoumann
chhoumann committed Mar 10, 2023
1 parent e14cc57 commit 415b357
Showing 1 changed file with 117 additions and 80 deletions.
197 changes: 117 additions & 80 deletions src/TemplateEngine.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -9,158 +9,195 @@ interface Tags {
[tag: string]: string | ((...args: unknown[]) => string);
}

type AddTagFn = (tag: Lowercase<string>, value: string | ((...args: unknown[]) => string)) => void;
type AddTagFn = (
tag: Lowercase<string>,
value: string | ((...args: unknown[]) => string)
) => void;
type ReplacerFn = (template: string) => string;

function useTemplateEngine(): Readonly<[ReplacerFn, AddTagFn]> {
const tags: Tags = {};

function addTag(tag: Lowercase<string>, value: string | ((...args: unknown[]) => string)): void {
function addTag(
tag: Lowercase<string>,
value: string | ((...args: unknown[]) => string)
): void {
tags[tag] = value;
}

function replacer(template: string): string {
return template.replace(/\{\{(.*?)(:\s*?.+?)?\}\}/g, (match: string, tagId: string, params: string) => {
const tagValue = tags[tagId.toLowerCase()];
if (tagValue === null || tagValue === undefined) {
const fuse = new Fuse(Object.keys(tags), {
shouldSort: true,
findAllMatches: false,
threshold: 0.4,
isCaseSensitive: false,
});

const similarTag = fuse.search(tagId);

new Notice(`Tag ${tagId} is invalid.${similarTag.length > 0 ? ` Did you mean ${similarTag[0].item}?` : ""}`);
return match;
}
return template.replace(
/\{\{(.*?)(:\s*?.+?)?\}\}/g,
(match: string, tagId: string, params: string) => {
const tagValue = tags[tagId.toLowerCase()];
if (tagValue === null || tagValue === undefined) {
const fuse = new Fuse(Object.keys(tags), {
shouldSort: true,
findAllMatches: false,
threshold: 0.4,
isCaseSensitive: false,
});

const similarTag = fuse.search(tagId);

new Notice(
`Tag ${tagId} is invalid.${
similarTag.length > 0
? ` Did you mean ${similarTag[0].item}?`
: ""
}`
);
return match;
}

if (typeof tagValue === "function") {
if (params) {
// Remove initial colon with splice.
const splitParams = params.slice(1).split(",");
const args = Array.isArray(splitParams)
? splitParams
: [params];

if (typeof tagValue === 'function') {
if (params) {
// Remove initial colon with splice.
const splitParams = params.slice(1).split(',');
const args = Array.isArray(splitParams) ? splitParams : [params];

return tagValue(...args);
return tagValue(...args);
}

return tagValue();
}

return tagValue();
return tagValue;
}

return tagValue;
});
);
}

return [replacer, addTag] as const;
}


export function NoteTemplateEngine(template: string, episode: Episode) {
const [replacer, addTag] = useTemplateEngine();

addTag('title', episode.title);
addTag('description', (prependToLines?: string) => {
if (prependToLines) {
return htmlToMarkdown(episode.description)
.split("\n")
.map((str) => `${prependToLines}${str}`)
.join("\n")
}

addTag("title", episode.title);
addTag("description", (prependToLines?: string) => {
if (prependToLines) {
return htmlToMarkdown(episode.description)
});
addTag('content', (prependToLines?: string) => {
if (prependToLines) {
return htmlToMarkdown(episode.content)
.split("\n")
.map((str) => `${prependToLines}${str}`)
.join("\n")
}
.split("\n")
.map((str) => `${prependToLines}${str}`)
.join("\n");
}

return htmlToMarkdown(episode.description);
});
addTag("content", (prependToLines?: string) => {
if (prependToLines) {
return htmlToMarkdown(episode.content)
.split("\n")
.map((str) => `${prependToLines}${str}`)
.join("\n");
}

return htmlToMarkdown(episode.content);
});
addTag('safetitle', replaceIllegalFileNameCharactersInString(episode.title));
addTag('url', episode.url);
addTag('date', (format?: string) => episode.episodeDate ?
window.moment(episode.episodeDate).format(format ?? "YYYY-MM-DD")
: "");
addTag('podcast', episode.podcastName);
addTag('artwork', episode.artworkUrl ?? "");
addTag(
"safetitle",
replaceIllegalFileNameCharactersInString(episode.title)
);
addTag("url", episode.url);
addTag("date", (format?: string) =>
episode.episodeDate
? window.moment(episode.episodeDate).format(format ?? "YYYY-MM-DD")
: ""
);
addTag("podcast", episode.podcastName);
addTag("artwork", episode.artworkUrl ?? "");

return replacer(template);
}

export function TimestampTemplateEngine(template: string) {
const [replacer, addTag] = useTemplateEngine();

addTag('time', (format?: string) => get(plugin).api.getPodcastTimeFormatted(format ?? "HH:mm:ss"))
addTag('linktime', (format?: string) => get(plugin).api.getPodcastTimeFormatted(format ?? "HH:mm:ss", true))

addTag("time", (format?: string) =>
get(plugin).api.getPodcastTimeFormatted(format ?? "HH:mm:ss")
);
addTag("linktime", (format?: string) =>
get(plugin).api.getPodcastTimeFormatted(format ?? "HH:mm:ss", true)
);

return replacer(template);
}

export function FilePathTemplateEngine(template: string, episode: Episode) {
const [replacer, addTag] = useTemplateEngine();

addTag('title', (whitespaceReplacement?: string) => {
const legalTitle = replaceIllegalFileNameCharactersInString(episode.title);
addTag("title", (whitespaceReplacement?: string) => {
const legalTitle = replaceIllegalFileNameCharactersInString(
episode.title
);
if (whitespaceReplacement) {
return legalTitle.replace(/\s+/g, whitespaceReplacement)
return legalTitle.replace(/\s+/g, whitespaceReplacement);
}

return legalTitle;
});
addTag('podcast', (whitespaceReplacement?: string) => {
const legalName = replaceIllegalFileNameCharactersInString(episode.podcastName);
addTag("podcast", (whitespaceReplacement?: string) => {
const legalName = replaceIllegalFileNameCharactersInString(
episode.podcastName
);
if (whitespaceReplacement) {
return legalName.replace(/\s+/g, whitespaceReplacement)
return legalName.replace(/\s+/g, whitespaceReplacement);
}

return legalName;
});
addTag('date', (format?: string) => episode.episodeDate ?
window.moment(episode.episodeDate).format(format ?? "YYYY-MM-DD")
: "");
addTag("date", (format?: string) =>
episode.episodeDate
? window.moment(episode.episodeDate).format(format ?? "YYYY-MM-DD")
: ""
);

return replacer(template);
}

export function DownloadPathTemplateEngine(template: string, episode: Episode) {
// Removing the template extension, as this is added automatically depending on file type.
const templateExtension = getUrlExtension(template);
const templateWithoutExtension = templateExtension ?
template.replace(templateExtension, '') :
template;
const templateWithoutExtension = templateExtension
? template.replace(templateExtension, "")
: template;

const [replacer, addTag] = useTemplateEngine();

addTag("title", (whitespaceReplacement?: string) => {
const legalTitle = replaceIllegalFileNameCharactersInString(episode.title);
const legalTitle = replaceIllegalFileNameCharactersInString(
episode.title
);
if (whitespaceReplacement) {
return legalTitle.replace(/\s+/g, whitespaceReplacement)
return legalTitle.replace(/\s+/g, whitespaceReplacement);
}

return legalTitle;
});
addTag("podcast", (whitespaceReplacement?: string) => {
const legalName = replaceIllegalFileNameCharactersInString(episode.podcastName);
const legalName = replaceIllegalFileNameCharactersInString(
episode.podcastName
);
if (whitespaceReplacement) {
return legalName.replace(/\s+/g, whitespaceReplacement)
return legalName.replace(/\s+/g, whitespaceReplacement);
}

return legalName;
});
addTag('date', (format?: string) => episode.episodeDate ?
window.moment(episode.episodeDate).format(format ?? "YYYY-MM-DD")
: "");
addTag("date", (format?: string) =>
episode.episodeDate
? window.moment(episode.episodeDate).format(format ?? "YYYY-MM-DD")
: ""
);

return replacer(templateWithoutExtension);
}

function replaceIllegalFileNameCharactersInString(string: string) {
return string
.replace(/[\\,#%&{}/*<>$'":@\u2023|?]*/g, '') // Replace illegal file name characters with empty string
.replace(/\n/, ' ') // replace newlines with spaces
.replace(' ', ' '); // replace multiple spaces with single space to make sure we don't have double spaces in the file name
return string
.replace(/[\\,#%&{}/*<>$'":@\u2023|?]*/g, "") // Replace illegal file name characters with empty string
.replace(/\n/, " ") // replace newlines with spaces
.replace(" ", " "); // replace multiple spaces with single space to make sure we don't have double spaces in the file name
}

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