package handler

import (
	"net/http"

	"bugulma/backend/internal/service"

	"github.com/gin-gonic/gin"
)

// AIHandler handles AI-powered functionality
type AIHandler struct {
	service *service.AIService
}

// NewAIHandler creates a new AI handler
func NewAIHandler(service *service.AIService) *AIHandler {
	return &AIHandler{service: service}
}

// ExtractFromText extracts organization data from text
// @Summary Extract organization data from text
// @Tags ai
// @Accept multipart/form-data
// @Produce json
// @Param text formData string true "Text to extract from"
// @Success 200 {object} map[string]interface{}
// @Router /ai/extract/text [post]
func (h *AIHandler) ExtractFromText(c *gin.Context) {
	text := c.PostForm("text")
	if text == "" {
		c.JSON(http.StatusBadRequest, gin.H{"error": "text parameter is required"})
		return
	}

	result, err := h.service.ExtractDataFromText(c.Request.Context(), text)
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
		return
	}

	c.JSON(http.StatusOK, result)
}

// ExtractFromFile extracts organization data from file
// @Summary Extract organization data from file
// @Tags ai
// @Accept multipart/form-data
// @Produce json
// @Param file formData file true "File to extract from"
// @Success 200 {object} map[string]interface{}
// @Router /ai/extract/file [post]
func (h *AIHandler) ExtractFromFile(c *gin.Context) {
	file, header, err := c.Request.FormFile("file")
	if err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": "file parameter is required"})
		return
	}
	defer file.Close()

	// Read file data
	fileData := make([]byte, header.Size)
	_, err = file.Read(fileData)
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": "failed to read file"})
		return
	}

	result, err := h.service.ExtractDataFromFile(c.Request.Context(), fileData, header.Filename)
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
		return
	}

	c.JSON(http.StatusOK, result)
}

// AnalyzeSymbiosis analyzes symbiotic relationships
// @Summary Analyze symbiotic relationships
// @Tags ai
// @Accept json
// @Produce json
// @Param request body map[string]interface{} true "Analysis request"
// @Success 200 {array} map[string]interface{}
// @Router /ai/analyze/symbiosis [post]
func (h *AIHandler) AnalyzeSymbiosis(c *gin.Context) {
	var request map[string]interface{}
	if err := c.ShouldBindJSON(&request); err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
		return
	}

	orgID, _ := request["organization_id"].(string)
	result, err := h.service.AnalyzeSymbiosis(c.Request.Context(), orgID)
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
		return
	}

	c.JSON(http.StatusOK, result)
}

// GetWebIntelligence gets web intelligence
// @Summary Get web intelligence
// @Tags ai
// @Accept json
// @Produce json
// @Param request body map[string]interface{} true "Web intelligence request"
// @Success 200 {object} map[string]interface{}
// @Router /ai/web-intelligence [post]
func (h *AIHandler) GetWebIntelligence(c *gin.Context) {
	var request map[string]interface{}
	if err := c.ShouldBindJSON(&request); err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
		return
	}

	orgName, _ := request["organization_name"].(string)
	result, err := h.service.GetWebIntelligence(c.Request.Context(), orgName)
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
		return
	}

	c.JSON(http.StatusOK, result)
}

// GetSearchSuggestions gets search suggestions
// @Summary Get search suggestions
// @Tags ai
// @Accept json
// @Produce json
// @Param request body map[string]interface{} true "Search suggestions request"
// @Success 200 {array} string
// @Router /ai/search-suggestions [post]
func (h *AIHandler) GetSearchSuggestions(c *gin.Context) {
	var request map[string]interface{}
	if err := c.ShouldBindJSON(&request); err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
		return
	}

	query, _ := request["query"].(string)
	result, err := h.service.GetSearchSuggestions(c.Request.Context(), query)
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
		return
	}

	c.JSON(http.StatusOK, result)
}

// GenerateDescription generates organization description
// @Summary Generate organization description
// @Tags ai
// @Accept json
// @Produce json
// @Param request body map[string]interface{} true "Description generation request"
// @Success 200 {string} string
// @Router /ai/generate/description [post]
func (h *AIHandler) GenerateDescription(c *gin.Context) {
	var request map[string]interface{}
	if err := c.ShouldBindJSON(&request); err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
		return
	}

	name, _ := request["name"].(string)
	sector, _ := request["sector"].(string)
	keywords, _ := request["keywords"].(string)

	result, err := h.service.GenerateDescription(c.Request.Context(), name, sector, keywords)
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
		return
	}

	c.JSON(http.StatusOK, result)
}

// GenerateHistoricalContext generates historical context
// @Summary Generate historical context
// @Tags ai
// @Accept json
// @Produce json
// @Param request body map[string]interface{} true "Historical context request"
// @Success 200 {string} string
// @Router /ai/generate/historical-context [post]
func (h *AIHandler) GenerateHistoricalContext(c *gin.Context) {
	var request map[string]interface{}
	if err := c.ShouldBindJSON(&request); err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
		return
	}

	landmarkName, _ := request["landmark_name"].(string)
	period, _ := request["period"].(string)
	originalPurpose, _ := request["original_purpose"].(string)
	currentStatus, _ := request["current_status"].(string)

	result, err := h.service.GenerateHistoricalContext(c.Request.Context(), landmarkName, period, originalPurpose, currentStatus)
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
		return
	}

	c.JSON(http.StatusOK, result)
}

// SendMessage sends a chat message
// @Summary Send chat message
// @Tags ai
// @Accept json
// @Produce json
// @Param request body map[string]interface{} true "Chat message request"
// @Success 200 {string} string
// @Router /ai/chat [post]
func (h *AIHandler) SendMessage(c *gin.Context) {
	var request map[string]interface{}
	if err := c.ShouldBindJSON(&request); err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
		return
	}

	message, _ := request["message"].(string)
	systemInstruction, _ := request["system_instruction"].(string)

	result, err := h.service.SendMessage(c.Request.Context(), message, systemInstruction)
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
		return
	}

	c.JSON(http.StatusOK, result)
}