import org.jetbrains.changelog.Changelog
import org.jetbrains.changelog.markdownToHTML

fun properties(key: String) = providers.gradleProperty(key)
fun environment(key: String) = providers.environmentVariable(key)

plugins {
    id("java") // Java support
    alias(libs.plugins.gradleIntelliJPlugin) // Gradle IntelliJ Plugin
    alias(libs.plugins.changelog) // Gradle Changelog Plugin
}

group = properties("pluginGroup").get()
version = properties("pluginVersion").get()

// Configure project's dependencies
repositories {
    mavenCentral()
    maven {
        // Personal jitpack mirror with builtin caching, so it's a bit faster than jitpack
        // If it fails to pull deps, comment it out and uncomment the line below it
        setUrl("https://mvn.falsepattern.com/jitpack/")
        // setUrl("https://jitpack.io/")
    }
}

dependencies {
    compileOnly(libs.annotations)
    //TODO Switch back to upstream once:
    //  - https://github.com/ballerina-platform/lsp4intellij/pull/327 (with the extra fixes)
    //  - https://github.com/ballerina-platform/lsp4intellij/pull/331
    // Are merged.
    implementation("com.github.FalsePattern:lsp4intellij:f385bbb726")
}

intellij {
    pluginName = properties("pluginName")
    version = properties("platformVersion")
    type = properties("platformType")

    // Plugin Dependencies. Uses `platformPlugins` property from the gradle.properties file.
    plugins = properties("platformPlugins").map { it.split(',').map(String::trim).filter(String::isNotEmpty) }
}

changelog {
    groups.empty()
    repositoryUrl = properties("pluginRepositoryUrl")
}

tasks {
    wrapper {
        gradleVersion = properties("gradleVersion").get()
    }

    patchPluginXml {
        version = properties("pluginVersion")
        sinceBuild = properties("pluginSinceBuild")
        untilBuild = properties("pluginUntilBuild")

        // Extract the <!-- Plugin description --> section from README.md and provide for the plugin's manifest
        pluginDescription = providers.fileContents(layout.projectDirectory.file("README.md")).asText.map {
            val start = "<!-- Plugin description -->"
            val end = "<!-- Plugin description end -->"

            with (it.lines()) {
                if (!containsAll(listOf(start, end))) {
                    throw GradleException("Plugin description section not found in README.md:\n$start ... $end")
                }
                subList(indexOf(start) + 1, indexOf(end)).joinToString("\n").let(::markdownToHTML)
            }
        }

        val changelog = project.changelog // local variable for configuration cache compatibility
        // Get the latest available change notes from the changelog file
        changeNotes = properties("pluginVersion").map { pluginVersion ->
            with(changelog) {
                renderItem(
                    (getOrNull(pluginVersion) ?: getUnreleased())
                        .withHeader(false)
                        .withEmptySections(false),
                    Changelog.OutputType.HTML,
                )
            }
        }
    }

// TODO this whole thing
//
//    signPlugin {
//        certificateChain = environment("CERTIFICATE_CHAIN")
//        privateKey = environment("PRIVATE_KEY")
//        password = environment("PRIVATE_KEY_PASSWORD")
//    }
//
//    publishPlugin {
//        dependsOn("patchChangelog")
//        token = environment("PUBLISH_TOKEN")
//        // The pluginVersion is based on the SemVer (https://semver.org) and supports pre-release labels, like 2.1.7-alpha.3
//        // Specify pre-release label to publish the plugin in a custom Release Channel automatically. Read more:
//        // https://plugins.jetbrains.com/docs/intellij/deployment.html#specifying-a-release-channel
//        channels = properties("pluginVersion").map { listOf(it.split('-').getOrElse(1) { "default" }.split('.').first()) }
//    }
}