import { PrismaClient } from "@prisma/client";
import express from "express";
import { env } from "node:process";
import axios from "axios";
import { GithubClient } from "./github";

const db = new PrismaClient();

const handleProjectCreate: express.Handler = async (req, resp) => {
    try {
        const { id } = await db.project.create({
            data: {
                userId: "gio", // req.get("x-forwarded-userid")!,
                name: req.body.name,
            },
        });
        resp.status(200);
        resp.header("Content-Type", "application/json");
        resp.write(
            JSON.stringify({
                id,
            }),
        );
    } catch (e) {
        console.log(e);
        resp.status(500);
    } finally {
        resp.end();
    }
};

const handleProjectAll: express.Handler = async (req, resp) => {
    try {
        const r = await db.project.findMany({
            where: {
                userId: "gio", // req.get("x-forwarded-userid")!,
            },
        });
        resp.status(200);
        resp.header("Content-Type", "application/json");
        resp.write(
            JSON.stringify(
                r.map((p) => ({
                    id: p.id.toString(),
                    name: p.name,
                })),
            ),
        );
    } catch (e) {
        console.log(e);
        resp.status(500);
    } finally {
        resp.end();
    }
};

const handleSave: express.Handler = async (req, resp) => {
    try {
        await db.project.update({
            where: {
                id: Number(req.params["projectId"]),
            },
            data: {
                draft: Buffer.from(JSON.stringify(req.body)),
            },
        });
        resp.status(200);
    } catch (e) {
        console.log(e);
        resp.status(500);
    } finally {
        resp.end();
    }
};

const handleSavedGet: express.Handler = async (req, resp) => {
    try {
        const r = await db.project.findUnique({
            where: {
                id: Number(req.params["projectId"]),
            },
            select: {
                state: true,
                draft: true,
            },
        });
        if (r == null) {
            resp.status(404);
        } else {
            resp.status(200);
            resp.header("content-type", "application/json");
            if (r.draft == null) {
                if (r.state == null) {
                    resp.send({
                        nodes: [],
                        edges: [],
                        viewport: { x: 0, y: 0, zoom: 1 },
                    });
                } else {
                    resp.send(JSON.parse(Buffer.from(r.state).toString("utf8")));
                }
            } else {
                resp.send(JSON.parse(Buffer.from(r.draft).toString("utf8")));
            }
        }
    } catch (e) {
        console.log(e);
        resp.status(500);
    } finally {
        resp.end();
    }
};

const handleDelete: express.Handler = async (req, resp) => {
    try {
        const projectId = Number(req.params["projectId"]);
        const p = await db.project.findUnique({
            where: {
                id: projectId,
            },
            select: {
                instanceId: true,
            },
        });
        if (p === null) {
            resp.status(404);
            return;
        }
        const r = await axios.request({
            url: `http://appmanager.hgrz-appmanager.svc.cluster.local/api/instance/${p.instanceId}/remove`,
            method: "post",
        });
        if (r.status === 200) {
            await db.project.delete({
                where: {
                    id: projectId,
                },
            });
        }
        resp.status(200);
    } catch (e) {
        console.log(e);
        resp.status(500);
    } finally {
        resp.end();
    }
};

const handleDeploy: express.Handler = async (req, resp) => {
    try {
        const projectId = Number(req.params["projectId"]);
        const state = Buffer.from(JSON.stringify(req.body.state));
        const p = await db.project.findUnique({
            where: {
                id: projectId,
            },
            select: {
                instanceId: true,
                githubToken: true,
                deployKey: true,
            },
        });
        if (p === null) {
            resp.status(404);
            return;
        }
        await db.project.update({
            where: {
                id: projectId,
            },
            data: {
                draft: state,
            },
        });
        let r: { status: number; data: { id: string; deployKey: string } };
        if (p.instanceId == null) {
            r = await axios.request({
                url: "http://appmanager.hgrz-appmanager.svc.cluster.local/api/dodo-app",
                method: "post",
                data: {
                    config: req.body.config,
                },
            });
            console.log(r);
            if (r.status === 200) {
                await db.project.update({
                    where: {
                        id: projectId,
                    },
                    data: {
                        state,
                        draft: null,
                        instanceId: r.data.id,
                        deployKey: r.data.deployKey,
                    },
                });

                if (p.githubToken && r.data.deployKey) {
                    const stateObj = JSON.parse(JSON.parse(state.toString()));
                    const githubNodes = stateObj.nodes.filter((n: any) => n.type === "github" && n.data?.repository?.id);

                    const github = new GithubClient(p.githubToken);
                    for (const node of githubNodes) {
                        try {
                            await github.addDeployKey(node.data.repository.sshURL, r.data.deployKey);
                        } catch (error) {
                            console.error(`Failed to add deploy key to repository ${node.data.repository.sshURL}:`, error);
                        }
                    }
                }
            }
        } else {
            r = await axios.request({
                url: `http://appmanager.hgrz-appmanager.svc.cluster.local/api/dodo-app/${p.instanceId}`,
                method: "put",
                data: {
                    config: req.body.config,
                },
            });
            if (r.status === 200) {
                await db.project.update({
                    where: {
                        id: projectId,
                    },
                    data: {
                        state,
                        draft: null,
                    },
                });
            }
        }
    } catch (e) {
        console.log(e);
        resp.status(500);
    } finally {
        resp.end();
    }
};

const handleStatus: express.Handler = async (req, resp) => {
    try {
        const projectId = Number(req.params["projectId"]);
        const p = await db.project.findUnique({
            where: {
                id: projectId,
            },
            select: {
                instanceId: true,
            },
        });
        console.log(projectId, p);
        if (p === null) {
            resp.status(404);
            return;
        }
        if (p.instanceId == null) {
            resp.status(404);
            return;
        }
        const r = await axios.request({
            url: `http://appmanager.hgrz-appmanager.svc.cluster.local/api/instance/${p.instanceId}/status`,
            method: "get",
        });
        resp.status(r.status);
        if (r.status === 200) {
            resp.write(JSON.stringify(r.data));
        }
    } catch (e) {
        console.log(e);
        resp.status(500);
    } finally {
        resp.end();
    }
};

const handleGithubRepos: express.Handler = async (req, resp) => {
    try {
        const projectId = Number(req.params["projectId"]);
        const project = await db.project.findUnique({
            where: { id: projectId },
            select: { githubToken: true }
        });

        if (!project?.githubToken) {
            resp.status(400);
            resp.write(JSON.stringify({ error: "GitHub token not configured" }));
            return;
        }

        const github = new GithubClient(project.githubToken);
        const repositories = await github.getRepositories();

        resp.status(200);
        resp.header("Content-Type", "application/json");
        resp.write(JSON.stringify(repositories));
    } catch (e) {
        console.log(e);
        resp.status(500);
        resp.write(JSON.stringify({ error: "Failed to fetch repositories" }));
    } finally {
        resp.end();
    }
};

const handleUpdateGithubToken: express.Handler = async (req, resp) => {
    try {
        const projectId = Number(req.params["projectId"]);
        const { githubToken } = req.body;

        await db.project.update({
            where: { id: projectId },
            data: { githubToken },
        });

        resp.status(200);
    } catch (e) {
        console.log(e);
        resp.status(500);
    } finally {
        resp.end();
    }
};

const handleEnv: express.Handler = async (req, resp) => {
    const projectId = Number(req.params["projectId"]);
    try {
        const project = await db.project.findUnique({
            where: { id: projectId },
            select: {
                deployKey: true,
                githubToken: true
            }
        });

        if (!project) {
            resp.status(404);
            resp.write(JSON.stringify({ error: "Project not found" }));
            return;
        }

        resp.status(200);
        resp.write(JSON.stringify({
            deployKey: project.deployKey,
            integrations: {
                github: !!project.githubToken,
            },
            networks: [{
                name: "Public",
                domain: "v1.dodo.cloud",
            }, {
                name: "Private",
                domain: "p.v1.dodo.cloud",
            }]
        }));
    } catch (error) {
        console.error("Error checking integrations:", error);
        resp.status(500);
        resp.write(JSON.stringify({ error: "Internal server error" }));
    } finally {
        resp.end();
    }
};

async function start() {
    await db.$connect();
    const app = express();
    app.use(express.json());
    app.post("/api/project/:projectId/saved", handleSave);
    app.get("/api/project/:projectId/saved", handleSavedGet);
    app.post("/api/project/:projectId/deploy", handleDeploy);
    app.get("/api/project/:projectId/status", handleStatus);
    app.delete("/api/project/:projectId", handleDelete);
    app.get("/api/project", handleProjectAll);
    app.post("/api/project", handleProjectCreate);
    app.get("/api/project/:projectId/repos/github", handleGithubRepos);
    app.post("/api/project/:projectId/github-token", handleUpdateGithubToken);
    app.get("/api/project/:projectId/env", handleEnv);
    app.use("/", express.static("../front/dist"));
    app.listen(env.DODO_PORT_WEB, () => {
        console.log("started");
    });
}

start();