package handler

import (
	"errors"
	"net/http"

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

	"github.com/yuxingu/digital-psychology/apps/api/internal/middleware"
	"github.com/yuxingu/digital-psychology/apps/api/internal/service/admin"
	"github.com/yuxingu/digital-psychology/apps/api/pkg/response"
)

func (h *AdminHandler) registerExploreScales(authed *gin.RouterGroup) {
	g := authed.Group("/explore")
	g.GET("/scales", middleware.RequireAnyAdminPermission(h.Svc, admin.PermExploreRead, admin.PermContentWrite), h.ListExploreScales)
	g.GET("/scales/:id", middleware.RequireAnyAdminPermission(h.Svc, admin.PermExploreRead, admin.PermContentWrite), h.GetExploreScale)
	g.POST("/scales", middleware.RequireAdminPermission(h.Svc, admin.PermExploreWrite), h.CreateExploreScale)
	g.PUT("/scales/:id", middleware.RequireAdminPermission(h.Svc, admin.PermExploreWrite), h.UpdateExploreScale)
}

func (h *AdminHandler) ListExploreScales(c *gin.Context) {
	items, err := h.Svc.ListScalesAdmin(c.Request.Context())
	if err != nil {
		response.Fail(c, http.StatusInternalServerError, 50060, "list explore scales failed")
		return
	}
	response.OK(c, gin.H{"items": items})
}

func (h *AdminHandler) GetExploreScale(c *gin.Context) {
	id, err := uuid.Parse(c.Param("id"))
	if err != nil {
		response.Fail(c, http.StatusBadRequest, 40002, "invalid id")
		return
	}
	row, err := h.Svc.GetScaleAdmin(c.Request.Context(), id)
	if errors.Is(err, admin.ErrScaleNotFound) {
		response.Fail(c, http.StatusNotFound, 40430, "scale not found")
		return
	}
	if err != nil {
		response.Fail(c, http.StatusInternalServerError, 50061, "get explore scale failed")
		return
	}
	response.OK(c, row)
}

func (h *AdminHandler) CreateExploreScale(c *gin.Context) {
	adminID, ok := middleware.AdminIDFromContext(c)
	if !ok {
		response.Fail(c, http.StatusUnauthorized, 40101, "admin auth required")
		return
	}
	var body admin.ScaleDefinitionWriteBody
	if err := c.ShouldBindJSON(&body); err != nil {
		response.Fail(c, http.StatusBadRequest, 40054, "invalid body")
		return
	}
	row, err := h.Svc.CreateScaleDefinition(c.Request.Context(), adminID, body)
	if errors.Is(err, admin.ErrInvalidScaleDefinition) {
		response.Fail(c, http.StatusBadRequest, 40055, "invalid scale definition")
		return
	}
	if errors.Is(err, admin.ErrScaleDefinitionConflict) {
		response.Fail(c, http.StatusConflict, 40912, "scale slug conflict")
		return
	}
	if err != nil {
		response.Fail(c, http.StatusInternalServerError, 50062, "create scale definition failed")
		return
	}
	response.OK(c, row)
}

func (h *AdminHandler) UpdateExploreScale(c *gin.Context) {
	adminID, ok := middleware.AdminIDFromContext(c)
	if !ok {
		response.Fail(c, http.StatusUnauthorized, 40101, "admin auth required")
		return
	}
	id, err := uuid.Parse(c.Param("id"))
	if err != nil {
		response.Fail(c, http.StatusBadRequest, 40002, "invalid id")
		return
	}
	var body admin.ScaleDefinitionWriteBody
	if err := c.ShouldBindJSON(&body); err != nil {
		response.Fail(c, http.StatusBadRequest, 40054, "invalid body")
		return
	}
	row, err := h.Svc.UpdateScaleDefinition(c.Request.Context(), adminID, id, body)
	if errors.Is(err, admin.ErrScaleNotFound) {
		response.Fail(c, http.StatusNotFound, 40430, "scale not found")
		return
	}
	if errors.Is(err, admin.ErrInvalidScaleDefinition) {
		response.Fail(c, http.StatusBadRequest, 40055, "invalid scale definition")
		return
	}
	if errors.Is(err, admin.ErrScaleDefinitionConflict) {
		response.Fail(c, http.StatusConflict, 40912, "scale slug conflict")
		return
	}
	if err != nil {
		response.Fail(c, http.StatusInternalServerError, 50063, "update scale definition failed")
		return
	}
	response.OK(c, row)
}