package handlers

import (
	"encoding/json"
	"log"
	"net/http"

	c "github.com/juanatsap/cv-site/internal/constants"
	"github.com/juanatsap/cv-site/internal/httputil"
)

// CmdKAction represents a single action for the ninja-keys command palette
type CmdKAction struct {
	ID       string `json:"id"`
	Title    string `json:"title"`
	Section  string `json:"section"`
	Keywords string `json:"keywords"`
}

// CmdKResponse represents the response for the CMD+K API endpoint
type CmdKResponse struct {
	Experiences []CmdKAction `json:"experiences"`
	Projects    []CmdKAction `json:"projects"`
	Courses     []CmdKAction `json:"courses"`
}

// CmdKData returns JSON data for the ninja-keys command palette
// This endpoint provides dynamic entries for experiences, projects, and courses
// that can be searched via CMD+K
func (h *CVHandler) CmdKData(w http.ResponseWriter, r *http.Request) {
	lang := httputil.Lang(r)

	// Get CV data from cache
	cv := h.dataCache.GetCV(lang)
	if cv == nil {
		log.Printf("ERROR: CV data not found in cache for language: %s", lang)
		http.Error(w, "Failed to load CV data", http.StatusInternalServerError)
		return
	}

	// Build response
	response := CmdKResponse{
		Experiences: make([]CmdKAction, 0, len(cv.Experience)),
		Projects:    make([]CmdKAction, 0, len(cv.Projects)),
		Courses:     make([]CmdKAction, 0, len(cv.Courses)),
	}

	// Map experiences
	for _, exp := range cv.Experience {
		if exp.CompanyID == "" {
			continue // Skip entries without ID
		}
		response.Experiences = append(response.Experiences, CmdKAction{
			ID:       "exp-" + exp.CompanyID,
			Title:    exp.Company,
			Section:  "Experience",
			Keywords: exp.Company + " " + exp.Position,
		})
	}

	// Map projects
	for _, proj := range cv.Projects {
		if proj.ProjectID == "" {
			continue // Skip entries without ID
		}
		title := proj.ProjectName
		if title == "" {
			title = proj.Title
		}
		response.Projects = append(response.Projects, CmdKAction{
			ID:       "proj-" + proj.ProjectID,
			Title:    title,
			Section:  "Projects",
			Keywords: title + " " + proj.ShortDescription,
		})
	}

	// Map courses
	for _, course := range cv.Courses {
		if course.CourseID == "" {
			continue // Skip entries without ID
		}
		response.Courses = append(response.Courses, CmdKAction{
			ID:       "course-" + course.CourseID,
			Title:    course.Title,
			Section:  "Courses",
			Keywords: course.Title + " " + course.Institution,
		})
	}

	// Set headers and encode response
	w.Header().Set(c.HeaderContentType, c.ContentTypeJSON)
	w.Header().Set(c.HeaderCacheControl, c.CachePublic1Hour)

	if err := json.NewEncoder(w).Encode(response); err != nil {
		log.Printf("ERROR encoding CMD+K response: %v", err)
	}
}