import { tokenManager } from "./oauth";

interface OrganizationInfo {
  type: string;
  id: string;
  name: string;
  role: string;
}

interface WhoAmIResponse {
  type: string;
  id: string;
  name: string;
  email?: string;
  fullname?: string;
  avatarUrl?: string;
  orgs: OrganizationInfo[];
}

interface OrganizationMember {
  user: string;
  role: string;
}

async function getOrganizationInfo(
  accessToken: string
): Promise<WhoAmIResponse> {
  const response = await fetch("https://huggingface.co/api/whoami-v2", {
    headers: {
      Authorization: `Bearer ${accessToken}`,
    },
  });

  if (!response.ok) {
    throw new Error(
      `Failed to fetch organization info: ${response.statusText}`
    );
  }

  return response.json();
}

async function getOrganizationMembers(
  accessToken: string,
  organization: string
): Promise<OrganizationMember[]> {
  const response = await fetch(
    `https://huggingface.co/api/organizations/${organization}/members`,
    {
      headers: {
        Authorization: `Bearer ${accessToken}`,
      },
    }
  );

  if (!response.ok) {
    throw new Error(
      `Failed to fetch organization members: ${response.statusText}`
    );
  }

  return response.json();
}

async function createResourceGroup(
  accessToken: string,
  organization: string,
  name: string,
  members: OrganizationMember[]
): Promise<void> {
  const response = await fetch(
    `https://huggingface.co/api/organizations/${organization}/resource-groups`,
    {
      method: "POST",
      headers: {
        "Content-Type": "application/json",
        Authorization: `Bearer ${accessToken}`,
      },
      body: JSON.stringify({
        name: name,
        description: `Resource group for repository ${name}`,
        users: members.map((member) => ({
          user: member.user,
          role: "admin",
        })),
      }),
    }
  );

  if (!response.ok) {
    throw new Error(`Failed to create resource group: ${response.statusText}`);
  }
}

async function createRepository(
  accessToken: string,
  name: string,
  organization?: string,
  resourceGroupName?: string
): Promise<void> {
  const response = await fetch("https://huggingface.co/api/repos/create", {
    method: "POST",
    headers: {
      "Content-Type": "application/json",
      Authorization: `Bearer ${accessToken}`,
    },
    body: JSON.stringify({
      type: "model",
      name: name,
      organization: organization,
      private: false,
    }),
  });

  if (!response.ok) {
    throw new Error(`Failed to create repository: ${response.statusText}`);
  }

  // If organization and resource group name are provided, create a resource group
  if (organization && resourceGroupName) {
    const members = await getOrganizationMembers(accessToken, organization);
    await createResourceGroup(
      accessToken,
      organization,
      resourceGroupName,
      members
    );
  }
}

const init = async (): Promise<void> => {
  if (tokenManager.isAuthenticated()) {
    showAuthenticatedUI();
  } else {
    showUnauthenticatedUI();
  }
};

const showAuthenticatedUI = async () => {
  const accessToken = tokenManager.getAccessToken();
  if (!accessToken) {
    throw new Error("Access token not found");
  }

  // Hide token form
  const tokenForm = document.getElementById("token-form");
  if (tokenForm) {
    tokenForm.style.display = "none";
  }

  // Show repo form and signout button
  const repoForm = document.getElementById("repo-form");
  const signoutButton = document.getElementById("signout");
  if (repoForm) {
    repoForm.style.removeProperty("display");
  }
  if (signoutButton) {
    signoutButton.style.removeProperty("display");
    signoutButton.onclick = () => tokenManager.logout();
  }

  // Add create repo functionality
  const createRepoButton = document.getElementById("create-repo");
  const repoNameInput = document.getElementById(
    "repo-name"
  ) as HTMLInputElement;
  const resourceGroupInput = document.getElementById(
    "resource-group-name"
  ) as HTMLInputElement;
  const resourceGroupContainer = document.getElementById(
    "resource-group-container"
  );

  if (createRepoButton && repoNameInput) {
    createRepoButton.onclick = async () => {
      const repoName = repoNameInput.value.trim();
      const orgSelect = document.getElementById(
        "org-select"
      ) as HTMLSelectElement;
      if (repoName) {
        try {
          const selectedOrg = orgSelect?.value || undefined;
          const resourceGroupName = selectedOrg
            ? resourceGroupInput?.value.trim()
            : undefined;

          console.log({ selectedOrg, resourceGroupName });
          await createRepository(
            accessToken,
            repoName,
            selectedOrg,
            resourceGroupName
          );
          repoNameInput.value = ""; // Clear input after success
          if (resourceGroupInput) {
            resourceGroupInput.value = ""; // Clear resource group input
          }
          alert("Repository and resource group created successfully!");
        } catch (error) {
          console.error("Failed to create repository:", error);
          alert("Failed to create repository. Please try again.");
        }
      }
    };
  }

  // Handle org select change to show/hide resource group input
  const orgSelect = document.getElementById("org-select") as HTMLSelectElement;
  if (orgSelect && resourceGroupContainer) {
    orgSelect.onchange = () => {
      if (orgSelect.value) {
        resourceGroupContainer.style.removeProperty("display");
      } else {
        resourceGroupContainer.style.display = "none";
      }
    };
  }

  // Get organization info and populate org select
  try {
    const orgInfo = await getOrganizationInfo(accessToken);

    // Populate org select
    if (orgSelect && orgInfo.orgs) {
      orgInfo.orgs.forEach((org) => {
        const option = document.createElement("option");
        option.value = org.name;
        option.textContent = org.name;
        orgSelect.appendChild(option);
      });
    }

    // Display user info
    const preElement = document.querySelector("pre");
    if (preElement) {
      preElement.textContent = JSON.stringify(orgInfo, null, 2);
    }
  } catch (error) {
    console.error("Failed to fetch organization info:", error);
  }
};

const showUnauthenticatedUI = () => {
  // Show token form
  const tokenForm = document.getElementById("token-form");
  const tokenInput = document.getElementById("token-input") as HTMLInputElement;
  const tokenSubmit = document.getElementById("token-submit");

  if (tokenForm && tokenInput && tokenSubmit) {
    tokenForm.style.removeProperty("display");
    tokenSubmit.onclick = () => {
      const token = tokenInput.value.trim();
      if (token) {
        tokenManager.setToken(token);
        showAuthenticatedUI();
      }
    };
  }

  // Hide other UI elements
  const repoForm = document.getElementById("repo-form");
  const signoutButton = document.getElementById("signout");
  if (repoForm) {
    repoForm.style.display = "none";
  }
  if (signoutButton) {
    signoutButton.style.display = "none";
  }
};

init().catch(console.error);