package agenda

import (
	"net/http"

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

type Handler struct {
	service *Service
}

func NewHandler(service *Service) *Handler {
	return &Handler{service: service}
}

// Create godoc
// @Summary      Create a new agenda event
// @Description  Create a new agenda event
// @Tags         agenda
// @Accept       json
// @Produce      json
// @Param        request body CreateAgendaRequest true "Create Agenda Request"
// @Success      201  {object}  map[string]interface{}
// @Failure      400  {object}  map[string]string
// @Failure      500  {object}  map[string]string
// @Router       /api/agenda [post]
func (h *Handler) Create(c *gin.Context) {
	var req CreateAgendaRequest
	if err := c.ShouldBindJSON(&req); err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": "Dados inválidos: " + err.Error()})
		return
	}

	agenda, err := h.service.Create(c.Request.Context(), req)
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": "Erro ao criar agenda: " + err.Error()})
		return
	}

	c.JSON(http.StatusCreated, agenda)
}

// List godoc
// @Summary      List all agenda events
// @Description  List all agenda events with details
// @Tags         agenda
// @Accept       json
// @Produce      json
// @Success      200  {array}   map[string]interface{}
// @Failure      500  {object}  map[string]string
// @Router       /api/agenda [get]
func (h *Handler) List(c *gin.Context) {
	agendas, err := h.service.List(c.Request.Context())
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": "Erro ao listar agendas: " + err.Error()})
		return
	}

	c.JSON(http.StatusOK, agendas)
}

// Get godoc
// @Summary      Get agenda event by ID
// @Description  Get agenda event details by ID
// @Tags         agenda
// @Accept       json
// @Produce      json
// @Param        id   path      string  true  "Agenda ID"
// @Success      200  {object}  map[string]interface{}
// @Failure      400  {object}  map[string]string
// @Failure      500  {object}  map[string]string
// @Router       /api/agenda/{id} [get]
func (h *Handler) Get(c *gin.Context) {
	idParam := c.Param("id")
	id, err := uuid.Parse(idParam)
	if err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": "ID inválido: " + err.Error()})
		return
	}

	agenda, err := h.service.Get(c.Request.Context(), id)
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": "Erro ao buscar agenda: " + err.Error()})
		return
	}

	c.JSON(http.StatusOK, agenda)
}

// Update godoc
// @Summary      Update agenda event
// @Description  Update agenda event by ID
// @Tags         agenda
// @Accept       json
// @Produce      json
// @Param        id   path      string  true  "Agenda ID"
// @Param        request body CreateAgendaRequest true "Update Agenda Request"
// @Success      200  {object}  map[string]interface{}
// @Failure      400  {object}  map[string]string
// @Failure      500  {object}  map[string]string
// @Router       /api/agenda/{id} [put]
func (h *Handler) Update(c *gin.Context) {
	idParam := c.Param("id")
	id, err := uuid.Parse(idParam)
	if err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": "ID inválido: " + err.Error()})
		return
	}

	var req CreateAgendaRequest
	if err := c.ShouldBindJSON(&req); err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": "Dados inválidos: " + err.Error()})
		return
	}

	agenda, err := h.service.Update(c.Request.Context(), id, req)
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": "Erro ao atualizar agenda: " + err.Error()})
		return
	}

	c.JSON(http.StatusOK, agenda)
}

// Delete godoc
// @Summary      Delete agenda event
// @Description  Delete agenda event by ID
// @Tags         agenda
// @Accept       json
// @Produce      json
// @Param        id   path      string  true  "Agenda ID"
// @Success      204  {object}  nil
// @Failure      400  {object}  map[string]string
// @Failure      500  {object}  map[string]string
// @Router       /api/agenda/{id} [delete]
func (h *Handler) Delete(c *gin.Context) {
	idParam := c.Param("id")
	id, err := uuid.Parse(idParam)
	if err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": "ID inválido: " + err.Error()})
		return
	}

	if err := h.service.Delete(c.Request.Context(), id); err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": "Erro ao deletar agenda: " + err.Error()})
		return
	}

	c.Status(http.StatusNoContent)
}