#!/usr/bin/env node
const [, , command, ...args] = process.argv;

const apiUrl = (process.env.SELECTED_COOLIFY_API_URL || process.env.COOLIFY_STAGING_API_URL || process.env.COOLIFY_API_URL || "").replace(/\/+$/, "");
const token = process.env.SELECTED_COOLIFY_TOKEN || process.env.COOLIFY_STAGING_TOKEN || process.env.COOLIFY_TOKEN || "";
const delayMs = Number(process.env.COOLIFY_DEPLOYMENT_POLL_MS || "5000");
const attempts = Number(process.env.COOLIFY_DEPLOYMENT_WAIT_ATTEMPTS || "90");

function fail(message) {
  process.stderr.write(`${message}\n`);
  process.exit(1);
}

async function coolify(path, options = {}) {
  if (!apiUrl || !token) {
    fail("Coolify API URL and token are required");
  }
  const response = await fetch(`${apiUrl}${path}`, {
    ...options,
    headers: {
      Authorization: `Bearer ${token}`,
      Accept: "application/json",
      ...(options.body ? { "Content-Type": "application/json" } : {}),
      ...options.headers,
    },
  });

  const text = await response.text();
  let payload = {};
  if (text.trim()) {
    try {
      payload = JSON.parse(text);
    } catch {
      payload = { message: text.trim() };
    }
  }

  if (!response.ok) {
    fail(`Coolify API request failed with HTTP ${response.status}`);
  }

  return payload;
}

function deploymentStatus(payload) {
  return String(payload.status || payload.deployment?.status || payload.data?.status || "unknown").toLowerCase();
}

function deploymentUuid(payload) {
  const value = payload.deployment_uuid || payload.uuid || payload.deployment?.uuid || payload.data?.deployment_uuid || payload.data?.uuid || "";
  return typeof value === "string" ? value : "";
}

async function trigger(resourceUuid) {
  if (!resourceUuid) {
    fail("Coolify resource UUID is required");
  }
  const payload = await coolify(`/applications/${encodeURIComponent(resourceUuid)}/start?force=true&instant_deploy=true`, {
    method: "POST",
  });
  const uuid = deploymentUuid(payload);
  if (!uuid) {
    fail("Coolify deployment UUID was not returned by the start request");
  }
  process.stdout.write(uuid);
}

function envKey(entry) {
  return typeof entry?.key === "string" ? entry.key : "";
}

function envValue(entry) {
  const value = entry?.value ?? entry?.real_value;
  return typeof value === "string" ? value : "";
}

async function setEnvs(resourceUuid, pairs) {
  if (!resourceUuid) {
    fail("Coolify resource UUID is required");
  }
  if (pairs.length === 0) {
    fail("At least one KEY=VALUE pair is required");
  }
  const parsed = pairs.map((pair) => {
    const separator = pair.indexOf("=");
    if (separator <= 0) {
      fail(`Invalid KEY=VALUE pair: ${pair}`);
    }
    return [pair.slice(0, separator), pair.slice(separator + 1)];
  });

  const existingPayload = await coolify(`/applications/${encodeURIComponent(resourceUuid)}/envs`);
  const existing = Array.isArray(existingPayload) ? existingPayload : Array.isArray(existingPayload?.data) ? existingPayload.data : [];
  const byKey = new Map(existing.map((entry) => [envKey(entry), entry]).filter(([key]) => key));

  for (const [key, value] of parsed) {
    const current = byKey.get(key);
    if (current && envValue(current) === value) {
      process.stdout.write(`env ${key} unchanged\n`);
      continue;
    }
    await coolify(`/applications/${encodeURIComponent(resourceUuid)}/envs`, {
      method: current ? "PATCH" : "POST",
      body: JSON.stringify({
        key,
        value,
        is_literal: true,
        is_preview: false,
        is_multiline: false,
        is_shown_once: false,
      }),
    });
    process.stdout.write(`env ${key} ${current ? "updated" : "created"}\n`);
  }
}

async function waitForDeployment(uuid, label) {
  if (!uuid) {
    fail("Coolify deployment UUID is required");
  }
  for (let attempt = 1; attempt <= attempts; attempt += 1) {
    const payload = await coolify(`/deployments/${encodeURIComponent(uuid)}`);
    const status = deploymentStatus(payload);
    process.stdout.write(`${label} deployment status: ${status}\n`);
    if (["finished", "success", "succeeded", "completed", "done"].includes(status)) {
      return;
    }
    if (["failed", "error", "cancelled", "canceled"].includes(status)) {
      fail(`${label} deployment failed`);
    }
    await new Promise((resolve) => setTimeout(resolve, delayMs));
  }
  fail(`${label} deployment did not finish in time`);
}

if (command === "trigger") {
  await trigger(args[0] || "");
} else if (command === "wait") {
  await waitForDeployment(args[0] || "", args[1] || "Coolify");
} else if (command === "set-envs") {
  await setEnvs(args[0] || "", args.slice(1));
} else {
  fail("Usage: coolify-deploy.mjs trigger <resource-uuid> | wait <deployment-uuid> <label> | set-envs <resource-uuid> KEY=VALUE...");
}