package com.ultron.jarvistv

import android.content.Context
import android.content.Intent
import android.net.Uri

/**
 * High-level tasks Jarvis can perform. These combine plain Android intents (fast, reliable) with
 * the accessibility engine (for in-app navigation like "click the first search result").
 * Every function returns a short human-readable status that gets echoed to the Jarvis screen
 * and back to the operator.
 */
object Actions {

    /** Launch any installed app by package name, e.g. com.google.android.youtube.tv */
    fun launchApp(ctx: Context, pkg: String): String {
        val intent = ctx.packageManager.getLeanbackLaunchIntentForPackage(pkg)
            ?: ctx.packageManager.getLaunchIntentForPackage(pkg)
            ?: return "App not found: $pkg"
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
        ctx.startActivity(intent)
        return "Launching $pkg"
    }

    /** Open a URL in the default browser / handler. */
    fun openUrl(ctx: Context, url: String): String {
        val fixed = if (url.startsWith("http")) url else "https://$url"
        ctx.startActivity(Intent(Intent.ACTION_VIEW, Uri.parse(fixed))
            .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK))
        return "Opening $fixed"
    }

    /** Google search results for a query. */
    fun googleSearch(ctx: Context, query: String): String {
        openUrl(ctx, "https://www.google.com/search?q=" + Uri.encode(query))
        return "Googling \"$query\""
    }

    /** Play a specific YouTube video id directly (deep link the app understands). */
    fun playYouTubeId(ctx: Context, videoId: String): String {
        val i = Intent(Intent.ACTION_VIEW, Uri.parse("vnd.youtube:$videoId"))
            .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
        ctx.startActivity(i)
        return "Playing YouTube video $videoId"
    }

    /**
     * Search YouTube for [query] and auto-play the first result. Opens the YouTube search screen
     * via intent, then hands off to the accessibility engine to click the top result.
     */
    fun searchAndPlayYouTube(ctx: Context, query: String): String {
        val search = Intent("com.google.android.youtube.action.open.search").apply {
            setPackage(youtubePackage(ctx))
            putExtra("query", query)
            addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
        }
        try {
            ctx.startActivity(search)
        } catch (e: Exception) {
            // Fallback: web results page in the YouTube app / browser
            openUrl(ctx, "https://www.youtube.com/results?search_query=" + Uri.encode(query))
        }
        // Give the results list ~2.5s to render, then click the first video tile.
        JarvisAccessibilityService.instance?.delayed(2500) {
            val a11y = JarvisAccessibilityService.instance ?: return@delayed
            // On TV the first result gets focus; DPAD_CENTER equivalent = click focused node.
            if (!a11y.clickText(query)) a11y.tap(400f, 300f)
        }
        return "Searching YouTube for \"$query\" and playing the top result"
    }

    /** Show an image full-screen (opens it in the system image viewer). */
    fun showImage(ctx: Context, url: String): String {
        val i = Intent(Intent.ACTION_VIEW)
            .setDataAndType(Uri.parse(url), "image/*")
            .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
        ctx.startActivity(Intent.createChooser(i, "Jarvis").addFlags(Intent.FLAG_ACTIVITY_NEW_TASK))
        return "Showing image"
    }

    /** Stream a direct video URL (mp4/hls) in the system player. */
    fun streamVideo(ctx: Context, url: String): String {
        val i = Intent(Intent.ACTION_VIEW)
            .setDataAndType(Uri.parse(url), "video/*")
            .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
        ctx.startActivity(i)
        return "Streaming video"
    }

    private fun youtubePackage(ctx: Context): String {
        // TV build first, then phone build as a fallback.
        val pm = ctx.packageManager
        return listOf("com.google.android.youtube.tv", "com.google.android.youtube")
            .firstOrNull {
                try { pm.getPackageInfo(it, 0); true } catch (e: Exception) { false }
            } ?: "com.google.android.youtube.tv"
    }
}