import { useQuery, useMutation, useQueryClient } from "@tanstack/react-query";
import {
  gitCommitLog,
  gitBranchList,
  gitTagList,
  gitBranchSummary,
  pullRequestList,
  gitTreeList,
  gitCommitGet,
  gitDiffTreeToTree,
  gitUpdateRepo,
  branchProtectionList,
  branchProtectionCreate,
  branchProtectionUpdate,
  branchProtectionDelete,
  projectRepos,
} from "@/client/api";

const REPO_DETAIL_QUERY_KEY = "repoDetail";
const REPO_COMMITS_QUERY_KEY = "repoCommits";
const REPO_BRANCHES_QUERY_KEY = "repoBranches";
const REPO_TAGS_QUERY_KEY = "repoTags";
const REPO_BRANCH_SUMMARY_QUERY_KEY = "repoBranchSummary";
const REPO_PULLS_QUERY_KEY = "repoPulls";
const REPO_TREE_QUERY_KEY = "repoTree";

interface RepoParams {
  namespace: string;
  repo: string;
}

export function useRepoDetailQuery({ namespace, repo }: RepoParams) {
  return useQuery({
    queryKey: [REPO_DETAIL_QUERY_KEY, namespace, repo],
    queryFn: async () => {
      return { namespace, repo };
    },
    enabled: !!namespace && !!repo,
  });
}

interface RepoCommitsParams extends RepoParams {
  page?: number;
  perPage?: number;
}

export function useRepoCommitsQuery({
  namespace,
  repo,
  page = 1,
  perPage = 20,
}: RepoCommitsParams) {
  return useQuery({
    queryKey: [REPO_COMMITS_QUERY_KEY, namespace, repo, page, perPage],
    queryFn: async () => {
      const res = await gitCommitLog(namespace, repo, { page, per_page: perPage });
      const body = res.data.data as unknown as { data: unknown[]; total: number; total_pages: number } | undefined;
      const commits = body?.data ?? [];
      const total = body?.total ?? commits.length;
      return {
        commits,
        totalCount: total,
        page,
        totalPages: body?.total_pages ?? (Math.ceil(total / perPage) || 1),
      };
    },
    enabled: !!namespace && !!repo,
  });
}

export function useRepoBranchesQuery({ namespace, repo }: RepoParams) {
  return useQuery({
    queryKey: [REPO_BRANCHES_QUERY_KEY, namespace, repo],
    queryFn: async () => {
      const res = await gitBranchList(namespace, repo);
      return (res.data.data as unknown as // eslint-disable-next-line @typescript-eslint/no-explicit-any
any[]) || [];
    },
    enabled: !!namespace && !!repo,
  });
}

export function useRepoTagsQuery({ namespace, repo }: RepoParams) {
  return useQuery({
    queryKey: [REPO_TAGS_QUERY_KEY, namespace, repo],
    queryFn: async () => {
      const res = await gitTagList(namespace, repo);
      return (res.data.data as unknown as // eslint-disable-next-line @typescript-eslint/no-explicit-any
any[]) || [];
    },
    enabled: !!namespace && !!repo,
  });
}

export function useRepoBranchSummaryQuery({ namespace, repo }: RepoParams) {
  return useQuery({
    queryKey: [REPO_BRANCH_SUMMARY_QUERY_KEY, namespace, repo],
    queryFn: async () => {
      const res = await gitBranchSummary(namespace, repo);
      return (res.data.data as unknown as // eslint-disable-next-line @typescript-eslint/no-explicit-any
any) || {};
    },
    enabled: !!namespace && !!repo,
  });
}

export function useRepoPullsQuery({ namespace, repo }: RepoParams) {
  return useQuery({
    queryKey: [REPO_PULLS_QUERY_KEY, namespace, repo],
    queryFn: async () => {
      const res = await pullRequestList(namespace, repo);
      return ((res.data.data as unknown as { pull_requests?: unknown[] })?.pull_requests ?? []) as unknown as // eslint-disable-next-line @typescript-eslint/no-explicit-any
any[];
    },
    enabled: !!namespace && !!repo,
  });
}

interface RepoTreeParams extends RepoParams {
  oid: string;
}

export function useRepoTreeQuery({ namespace, repo, oid }: RepoTreeParams) {
  return useQuery({
    queryKey: [REPO_TREE_QUERY_KEY, namespace, repo, oid],
    queryFn: async () => {
      const res = await gitTreeList(namespace, repo, oid);
      return (res.data.data as unknown as // eslint-disable-next-line @typescript-eslint/no-explicit-any
any[]) || [];
    },
    enabled: !!namespace && !!repo && !!oid,
  });
}

const REPO_COMMIT_DETAIL_QUERY_KEY = "repoCommitDetail";
const REPO_COMMIT_DIFF_QUERY_KEY = "repoCommitDiff";

export function useRepoCommitDetailQuery({ namespace, repo, oid }: RepoTreeParams) {
  return useQuery({
    queryKey: [REPO_COMMIT_DETAIL_QUERY_KEY, namespace, repo, oid],
    queryFn: async () => {
      const res = await gitCommitGet(namespace, repo, oid);
      // eslint-disable-next-line @typescript-eslint/no-explicit-any
      return res.data.data as any;
    },
    enabled: !!namespace && !!repo && !!oid,
  });
}

export function useRepoCommitDiffQuery({ namespace, repo, oid, baseOid }: RepoTreeParams & { baseOid?: string }) {
  return useQuery({
    queryKey: [REPO_COMMIT_DIFF_QUERY_KEY, namespace, repo, oid, baseOid],
    queryFn: async () => {
      const res = await gitDiffTreeToTree(namespace, repo, {
        old_tree: baseOid || "",
        new_tree: oid,
      });
      // eslint-disable-next-line @typescript-eslint/no-explicit-any
      return res.data.data as any;
    },
    enabled: !!namespace && !!repo && !!oid,
  });
}

// Repo Settings Hooks
export function useRepoInfoQuery({ namespace, repo }: RepoParams) {
  return useQuery({
    queryKey: ["repoInfo", namespace, repo],
    queryFn: async () => {
      const res = await projectRepos(namespace);
      const items = res.data.data?.items ?? [];
      return items.find((item) => item.repo_name === repo) ?? null;
    },
    enabled: !!namespace && !!repo,
  });
}

export function useUpdateRepoSettingsMutation(namespace: string, repo: string) {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: async (params: {
      name?: string;
      default_branch?: string;
      ai_code_review_enabled?: boolean;
      description?: string;
      is_private?: boolean;
    }) => {
      return gitUpdateRepo(namespace, repo, params);
    },
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: [REPO_DETAIL_QUERY_KEY, namespace, repo] });
      queryClient.invalidateQueries({ queryKey: ["repoInfo", namespace, repo] });
    },
  });
}

// Branch Protection Hooks
const BRANCH_PROTECTION_QUERY_KEY = "branchProtection";

export function useBranchProtectionQuery({ namespace, repo }: RepoParams) {
  return useQuery({
    queryKey: [BRANCH_PROTECTION_QUERY_KEY, namespace, repo],
    queryFn: async () => {
      const res = await branchProtectionList(namespace, repo);
      return (res.data.data as unknown as // eslint-disable-next-line @typescript-eslint/no-explicit-any
any[]) || [];
    },
    enabled: !!namespace && !!repo,
  });
}

export function useCreateBranchProtectionMutation(namespace: string, repo: string) {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: async (params: {
      branch: string;
      forbid_push?: boolean;
      forbid_pull?: boolean;
      forbid_merge?: boolean;
      forbid_deletion?: boolean;
      forbid_force_push?: boolean;
      forbid_tag_push?: boolean;
      required_approvals?: number;
      dismiss_stale_reviews?: boolean;
      require_linear_history?: boolean;
      allow_fork_syncing?: boolean;
    }) => {
      return branchProtectionCreate(namespace, repo, params);
    },
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: [BRANCH_PROTECTION_QUERY_KEY, namespace, repo] });
    },
  });
}

export function useUpdateBranchProtectionMutation(namespace: string, repo: string) {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: async ({ id, ...params }: { id: number; [key: string]: unknown }) => {
      return branchProtectionUpdate(namespace, repo, id, params);
    },
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: [BRANCH_PROTECTION_QUERY_KEY, namespace, repo] });
    },
  });
}

export function useDeleteBranchProtectionMutation(namespace: string, repo: string) {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: async (id: number) => {
      return branchProtectionDelete(namespace, repo, id);
    },
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: [BRANCH_PROTECTION_QUERY_KEY, namespace, repo] });
    },
  });
}