import log from "electron-log";

import { createTestOnlyLoggedHandler } from "./safe_handle";
import { handleNeonOAuthReturn } from "../../neon_admin/neon_return_handler";
import {
  getNeonClient,
  getNeonErrorMessage,
  getNeonOrganizationId,
} from "../../neon_admin/neon_management_client";
import {
  CreateNeonProjectParams,
  NeonProject,
  GetNeonProjectParams,
  GetNeonProjectResponse,
  NeonBranch,
} from "../ipc_types";
import { db } from "../../db";
import { apps } from "../../db/schema";
import { eq } from "drizzle-orm";
import { ipcMain } from "electron";
import { EndpointType } from "@neondatabase/api-client";
import { retryOnLocked } from "../utils/retryOnLocked";

export const logger = log.scope("neon_handlers");

const testOnlyHandle = createTestOnlyLoggedHandler(logger);

export function registerNeonHandlers() {
  // Do not use log handler because there's sensitive data in the response
  ipcMain.handle(
    "neon:create-project",
    async (
      _,
      { name, appId }: CreateNeonProjectParams,
    ): Promise<NeonProject> => {
      const neonClient = await getNeonClient();

      logger.info(`Creating Neon project: ${name} for app ${appId}`);

      try {
        // Get the organization ID
        const orgId = await getNeonOrganizationId();

        // Create project with retry on locked errors
        const response = await retryOnLocked(
          () =>
            neonClient.createProject({
              project: {
                name: name,
                org_id: orgId,
              },
            }),
          `Create project ${name} for app ${appId}`,
        );

        if (!response.data.project) {
          throw new Error(
            "Failed to create project: No project data returned.",
          );
        }

        const project = response.data.project;
        const developmentBranch = response.data.branch;

        const previewBranchResponse = await retryOnLocked(
          () =>
            neonClient.createProjectBranch(project.id, {
              endpoints: [{ type: EndpointType.ReadOnly }],
              branch: {
                name: "preview",
                parent_id: developmentBranch.id,
              },
            }),
          `Create preview branch for project ${project.id}`,
        );

        if (
          !previewBranchResponse.data.branch ||
          !previewBranchResponse.data.connection_uris
        ) {
          throw new Error(
            "Failed to create preview branch: No branch data returned.",
          );
        }

        const previewBranch = previewBranchResponse.data.branch;

        // Store project and branch info in the app's DB row
        await db
          .update(apps)
          .set({
            neonProjectId: project.id,
            neonDevelopmentBranchId: developmentBranch.id,
            neonPreviewBranchId: previewBranch.id,
          })
          .where(eq(apps.id, appId));

        logger.info(
          `Successfully created Neon project: ${project.id} and development branch: ${developmentBranch.id} for app ${appId}`,
        );
        return {
          id: project.id,
          name: project.name,
          connectionString: response.data.connection_uris[0].connection_uri,
          branchId: developmentBranch.id,
        };
      } catch (error: any) {
        const errorMessage = getNeonErrorMessage(error);
        const message = `Failed to create Neon project for app ${appId}: ${errorMessage}`;
        logger.error(message);
        throw new Error(message);
      }
    },
  );

  ipcMain.handle(
    "neon:get-project",
    async (
      _,
      { appId }: GetNeonProjectParams,
    ): Promise<GetNeonProjectResponse> => {
      logger.info(`Getting Neon project info for app ${appId}`);

      try {
        // Get the app from the database to find the neonProjectId and neonBranchId
        const app = await db
          .select()
          .from(apps)
          .where(eq(apps.id, appId))
          .limit(1);

        if (app.length === 0) {
          throw new Error(`App with ID ${appId} not found`);
        }

        const appData = app[0];
        if (!appData.neonProjectId) {
          throw new Error(`No Neon project found for app ${appId}`);
        }

        const neonClient = await getNeonClient();
        console.log("PROJECT ID", appData.neonProjectId);

        // Get project info
        const projectResponse = await neonClient.getProject(
          appData.neonProjectId,
        );

        if (!projectResponse.data.project) {
          throw new Error("Failed to get project: No project data returned.");
        }

        const project = projectResponse.data.project;

        // Get list of branches
        const branchesResponse = await neonClient.listProjectBranches({
          projectId: appData.neonProjectId,
        });

        if (!branchesResponse.data.branches) {
          throw new Error("Failed to get branches: No branch data returned.");
        }

        // Map branches to our format
        const branches: NeonBranch[] = branchesResponse.data.branches.map(
          (branch) => {
            let type: "production" | "development" | "snapshot" | "preview";

            if (branch.default) {
              type = "production";
            } else if (branch.id === appData.neonDevelopmentBranchId) {
              type = "development";
            } else if (branch.id === appData.neonPreviewBranchId) {
              type = "preview";
            } else {
              type = "snapshot";
            }

            // Find parent branch name if parent_id exists
            let parentBranchName: string | undefined;
            if (branch.parent_id) {
              const parentBranch = branchesResponse.data.branches?.find(
                (b) => b.id === branch.parent_id,
              );
              parentBranchName = parentBranch?.name;
            }

            return {
              type,
              branchId: branch.id,
              branchName: branch.name,
              lastUpdated: branch.updated_at,
              parentBranchId: branch.parent_id,
              parentBranchName,
            };
          },
        );

        logger.info(
          `Successfully retrieved Neon project info for app ${appId}`,
        );

        return {
          projectId: project.id,
          projectName: project.name,
          orgId: project.org_id ?? "<unknown_org_id>",
          branches,
        };
      } catch (error) {
        logger.error(
          `Failed to get Neon project info for app ${appId}:`,
          error,
        );
        throw error;
      }
    },
  );

  testOnlyHandle("neon:fake-connect", async (event) => {
    // Call handleNeonOAuthReturn with fake data
    handleNeonOAuthReturn({
      token: "fake-neon-access-token",
      refreshToken: "fake-neon-refresh-token",
      expiresIn: 3600, // 1 hour
    });
    logger.info("Called handleNeonOAuthReturn with fake data during testing.");

    // Simulate the deep link event
    event.sender.send("deep-link-received", {
      type: "neon-oauth-return",
      url: "https://oauth.dyad.sh/api/integrations/neon/login",
    });
    logger.info("Sent fake neon deep-link-received event during testing.");
  });
}