Jonathan
116 lines
3.1 KiB
Go
116 lines
3.1 KiB
Go
package github
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import (
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"context"
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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"regexp"
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"github.com/google/go-github/v79/github"
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"github.com/mark3labs/mcp-go/mcp"
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)
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func hasFilter(query, filterType string) bool {
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// Match filter at start of string, after whitespace, or after non-word characters like '('
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pattern := fmt.Sprintf(`(^|\s|\W)%s:\S+`, regexp.QuoteMeta(filterType))
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matched, _ := regexp.MatchString(pattern, query)
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return matched
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}
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func hasSpecificFilter(query, filterType, filterValue string) bool {
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// Match specific filter:value at start, after whitespace, or after non-word characters
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// End with word boundary, whitespace, or non-word characters like ')'
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pattern := fmt.Sprintf(`(^|\s|\W)%s:%s($|\s|\W)`, regexp.QuoteMeta(filterType), regexp.QuoteMeta(filterValue))
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matched, _ := regexp.MatchString(pattern, query)
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return matched
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}
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func hasRepoFilter(query string) bool {
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return hasFilter(query, "repo")
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}
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func hasTypeFilter(query string) bool {
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return hasFilter(query, "type")
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}
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func searchHandler(
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ctx context.Context,
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getClient GetClientFn,
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request mcp.CallToolRequest,
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searchType string,
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errorPrefix string,
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) (*mcp.CallToolResult, error) {
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query, err := RequiredParam[string](request, "query")
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if err != nil {
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return mcp.NewToolResultError(err.Error()), nil
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}
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if !hasSpecificFilter(query, "is", searchType) {
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query = fmt.Sprintf("is:%s %s", searchType, query)
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}
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owner, err := OptionalParam[string](request, "owner")
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if err != nil {
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return mcp.NewToolResultError(err.Error()), nil
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}
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repo, err := OptionalParam[string](request, "repo")
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if err != nil {
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return mcp.NewToolResultError(err.Error()), nil
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}
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if owner != "" && repo != "" && !hasRepoFilter(query) {
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query = fmt.Sprintf("repo:%s/%s %s", owner, repo, query)
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}
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sort, err := OptionalParam[string](request, "sort")
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if err != nil {
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return mcp.NewToolResultError(err.Error()), nil
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}
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order, err := OptionalParam[string](request, "order")
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if err != nil {
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return mcp.NewToolResultError(err.Error()), nil
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}
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pagination, err := OptionalPaginationParams(request)
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if err != nil {
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return mcp.NewToolResultError(err.Error()), nil
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}
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opts := &github.SearchOptions{
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// Default to "created" if no sort is provided, as it's a common use case.
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Sort: sort,
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Order: order,
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ListOptions: github.ListOptions{
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Page: pagination.Page,
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PerPage: pagination.PerPage,
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},
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}
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client, err := getClient(ctx)
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if err != nil {
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return nil, fmt.Errorf("%s: failed to get GitHub client: %w", errorPrefix, err)
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}
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result, resp, err := client.Search.Issues(ctx, query, opts)
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if err != nil {
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return nil, fmt.Errorf("%s: %w", errorPrefix, err)
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}
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defer func() { _ = resp.Body.Close() }()
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if resp.StatusCode != http.StatusOK {
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body, err := io.ReadAll(resp.Body)
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if err != nil {
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return nil, fmt.Errorf("%s: failed to read response body: %w", errorPrefix, err)
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}
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return mcp.NewToolResultError(fmt.Sprintf("%s: %s", errorPrefix, string(body))), nil
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}
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r, err := json.Marshal(result)
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if err != nil {
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return nil, fmt.Errorf("%s: failed to marshal response: %w", errorPrefix, err)
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}
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return mcp.NewToolResultText(string(r)), nil
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}
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