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feat: support loading params from URL #60

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derlin wants to merge 1 commit into from
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feat: support loading params from URL #60

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35 changes: 29 additions & 6 deletions src/jsMain/kotlin/toc.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@ import kotlinx.browser.document
import kotlinx.browser.localStorage
import kotlinx.browser.window
import org.w3c.dom.*
import org.w3c.dom.url.URLSearchParams

val DEFAULT_INPUT_MARKDOWN = """
# Paste Your Document In Here
Expand Down Expand Up @@ -85,6 +86,11 @@ class TocHandler(
fun getSelectProfile(): HTMLSelectElement =
(document.getElementById("profile") as HTMLSelectElement)

fun maybeSetProfile(value: String) = value.uppercase().let { profile ->
runCatching { BitProfiles.valueOf(profile) }
.onSuccess { getSelectProfile().value = profile }
}

fun generateOptions(): String =
BitOptions.list.map { it.toHtml() }.joinToString("") { "<div>$it</div>" }

Expand All @@ -103,24 +109,32 @@ fun resetOptions() {
}
localStorage.removeItem("profile")
getSelectProfile().reset()
window.location.hash = ""
console.log("options reset")
}

fun loadOptions() {
BitOptions.list.forEach { bitOption ->
(localStorage.getItem(bitOption.id))?.let { value ->
bitOption.setValue(value)
}
BitOptions.setFrom { localStorage.getItem(it) }
window.location.hash.substring(1).takeIf { it.isNotBlank() }?.let { hash ->
val urlParams = URLSearchParams(hash)
console.log("loading options from URL", urlParams)
BitOptions.setFrom { urlParams.get(it) }
}
localStorage.getItem("profile")?.let { getSelectProfile().value = it }
console.log("options saved")
}

fun writeOptionsInUrlHash() {
val params = URLSearchParams()
BitOptions.list.forEach { bitOption -> params.set(bitOption.id, bitOption.getValue().toString()) }
params.set("profile", getSelectProfile().value)
window.location.hash = params.toString()
}

fun generate(text: String): String = try {
BitGenerator.generate(text, getParams())
} catch (e: BitException) {
"\nError!\n${e.message}"
}.also {
writeOptionsInUrlHash()
console.log("returned $it")
}

Expand All @@ -137,6 +151,15 @@ fun getParams() = BitGenerator.Params(
maxLevel = BitOptions.maxLevel.getValue()
)

fun BitOptions.setFrom(getter: (String) -> String?) {
list.forEach { bitOption ->
getter(bitOption.id)?.let {
bitOption.setValue(it)
}
}
getter("profile")?.let { maybeSetProfile(it) }
}

fun BitProfiles.apply() {
this.overriddenBitOptions().forEach { it.setValue(it.default.toString()) }
}
Expand Down