// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
    repositories {
        google()
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:8.13.2'
    }
}

allprojects {
    repositories {
        google()
        mavenCentral()
        maven { url 'https://jitpack.io' }
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

def loadLocalProperties() {
    def props = new Properties()
    def propsFile = rootProject.file("local.properties")
    if (propsFile.exists()) {
        propsFile.withInputStream { props.load(it) }
    }
    return props
}

def resolveSdkDir() {
    def props = loadLocalProperties()
    return props.getProperty("sdk.dir") ?: System.getenv("ANDROID_SDK_ROOT") ?: System.getenv("ANDROID_HOME")
}

def isWindows = System.getProperty("os.name").toLowerCase().contains("windows")
def npmCmd = isWindows ? "npm.cmd" : "npm"

def findWindowsNpm() {
    def candidates = []
    def pathEnv = System.getenv("PATH") ?: ""
    pathEnv.split(";").each { p ->
        if (!p) return
        def cmd = new File(p, "npm.cmd")
        if (cmd.exists()) candidates << cmd
        def exe = new File(p, "npm.exe")
        if (exe.exists()) candidates << exe
    }
    def nvmHome = System.getenv("NVM_HOME")
    def nvmSymlink = System.getenv("NVM_SYMLINK")
    if (nvmSymlink) {
        def cmd = new File(nvmSymlink, "npm.cmd")
        if (cmd.exists()) candidates << cmd
    }
    if (nvmHome) {
        def current = new File(nvmHome, "current")
        if (current.exists()) {
            def cmd = new File(current, "npm.cmd")
            if (cmd.exists()) candidates << cmd
        }
        def versions = new File(nvmHome)
        if (versions.exists()) {
            versions.listFiles()?.findAll { it.isDirectory() }?.each { v ->
                def cmd = new File(v, "npm.cmd")
                if (cmd.exists()) candidates << cmd
            }
        }
    }
    def appData = System.getenv("APPDATA")
    if (appData) {
        def cmd = new File(appData, "npm\\npm.cmd")
        if (cmd.exists()) candidates << cmd
    }
    def programFiles = System.getenv("ProgramFiles")
    if (programFiles) {
        def cmd = new File(programFiles, "nodejs\\npm.cmd")
        if (cmd.exists()) candidates << cmd
    }
    def localAppData = System.getenv("LOCALAPPDATA")
    if (localAppData) {
        def nvmLocal = new File(localAppData, "nvm")
        if (nvmLocal.exists()) {
            nvmLocal.listFiles()?.findAll { it.isDirectory() }?.each { v ->
                def cmd = new File(v, "npm.cmd")
                if (cmd.exists()) candidates << cmd
            }
        }
    }
    return candidates.isEmpty() ? null : candidates.first().absolutePath
}

tasks.register("startBackend", Exec) {
    workingDir "${rootDir}/backend"
    if (isWindows) {
        doFirst {
            def npmPath = (project.findProperty("npmPath") ?: System.getenv("NPM_PATH"))?.toString()
            if (!npmPath) {
                npmPath = findWindowsNpm()
            }
            if (!npmPath) {
                def out = new ByteArrayOutputStream()
                exec {
                    commandLine "cmd", "/c", "where.exe", "npm"
                    standardOutput = out
                    errorOutput = out
                    ignoreExitValue = true
                }
                def line = out.toString().readLines().find { it.toLowerCase().endsWith("npm.cmd") || it.toLowerCase().endsWith("npm.exe") }
                if (line) {
                    npmPath = line.trim()
                }
            }
            if (!npmPath) {
                throw new GradleException("npm not found. Set -PnpmPath=... or ensure npm is visible to cmd.exe. If using nvm, try your NVM_HOME version's npm.cmd.")
            }
            def nodeModules = new File(workingDir, "node_modules")
            if (!nodeModules.exists()) {
                exec {
                    workingDir "${rootDir}/backend"
                    commandLine "cmd", "/c", npmPath, "install"
                }
            }
            commandLine "cmd", "/c", "start", "\"\"", npmPath, "start"
        }
    } else {
        doFirst {
            def nodeModules = new File(workingDir, "node_modules")
            if (!nodeModules.exists()) {
                exec {
                    workingDir "${rootDir}/backend"
                    commandLine "sh", "-c", "${npmCmd} install"
                }
            }
            commandLine "sh", "-c", "${npmCmd} start &"
        }
    }
}

tasks.register("runBackendDebug") {
    dependsOn(":app:installDebug", "startBackend")
    doLast {
        def sdkDir = resolveSdkDir()
        if (!sdkDir) {
            throw new GradleException("Missing sdk.dir in local.properties and ANDROID_SDK_ROOT/ANDROID_HOME is not set")
        }
        def adb = "${sdkDir}/platform-tools/adb" + (isWindows ? ".exe" : "")
        exec {
            commandLine adb, "shell", "am", "start", "-n", "com.dark98.santoku/.MainActivity"
        }
    }
}