"use server";

import { NextResponse } from "next/server";
import fs from "fs/promises";
import {
  getCliRuntimeStatus,
  CLI_TOOL_IDS,
  getCliPrimaryConfigPath,
} from "@/shared/services/cliRuntime";
import { getAllCliToolLastConfigured } from "@/lib/db/cliToolState";

// Check if a tool has OmniRoute configured by reading its config file directly
// This replaces the expensive self-referential HTTP calls to /api/cli-tools/*-settings
async function checkToolConfigStatus(toolId: string): Promise<string> {
  try {
    const configPath = getCliPrimaryConfigPath(toolId);
    if (!configPath) return "unknown";

    const content = await fs.readFile(configPath, "utf-8");
    const config = JSON.parse(content);

    // Each tool stores OmniRoute config differently
    switch (toolId) {
      case "claude":
        return config?.env?.ANTHROPIC_BASE_URL ? "configured" : "not_configured";
      case "codex":
        return config?.providers?.omniroute || config?.providers?.["openai-compatible"]
          ? "configured"
          : "not_configured";
      case "droid":
      case "openclaw":
      case "cline":
      case "kilo":
        // Generic check: look for any OmniRoute-related URL in the config
        const configStr = JSON.stringify(config).toLowerCase();
        return configStr.includes("omniroute") || configStr.includes("localhost")
          ? "configured"
          : "not_configured";
      default:
        return "unknown";
    }
  } catch {
    return "not_configured";
  }
}

/**
 * GET /api/cli-tools/status
 * Returns runtime + config status for all CLI tools in one batch call.
 * Used by the CLI Tools page to show status badges in collapsed state.
 */
export async function GET() {
  try {
    const statuses = {};

    // Run all runtime checks in parallel
    await Promise.all(
      CLI_TOOL_IDS.map(async (toolId) => {
        try {
          const runtime = await getCliRuntimeStatus(toolId);
          statuses[toolId] = {
            installed: runtime.installed,
            runnable: runtime.runnable,
            command: runtime.command,
            commandPath: runtime.commandPath,
            reason: runtime.reason || null,
          };
        } catch (error) {
          statuses[toolId] = {
            installed: false,
            runnable: false,
            reason: error.message,
          };
        }
      })
    );

    // Check config status for installed+runnable tools via direct file reads
    const settingsTools = ["claude", "codex", "droid", "openclaw", "cline", "kilo"];

    await Promise.all(
      settingsTools.map(async (toolId) => {
        if (!statuses[toolId]?.installed || !statuses[toolId]?.runnable) {
          statuses[toolId].configStatus = "not_installed";
          return;
        }
        statuses[toolId].configStatus = await checkToolConfigStatus(toolId);
      })
    );

    // Merge last-configured timestamps from SQLite
    try {
      const lastConfigured = getAllCliToolLastConfigured();
      for (const [toolId, timestamp] of Object.entries(lastConfigured)) {
        if (statuses[toolId]) {
          statuses[toolId].lastConfiguredAt = timestamp;
        }
      }
    } catch {
      /* non-critical */
    }

    return NextResponse.json(statuses);
  } catch (error) {
    console.log("Error fetching CLI tool statuses:", error);
    return NextResponse.json({ error: "Failed to fetch statuses" }, { status: 500 });
  }
}