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) registerReportTemplates(authed *gin.RouterGroup) {
	g := authed.Group("/growth")
	g.GET("/report-templates", middleware.RequireAdminPermission(h.Svc, admin.PermGrowthRead), h.ListReportTemplates)
	g.GET("/report-templates/:id", middleware.RequireAdminPermission(h.Svc, admin.PermGrowthRead), h.GetReportTemplate)
	g.POST("/report-templates", middleware.RequireAdminPermission(h.Svc, admin.PermGrowthWrite), h.CreateReportTemplate)
	g.PUT("/report-templates/:id", middleware.RequireAdminPermission(h.Svc, admin.PermGrowthWrite), h.UpdateReportTemplate)
}

func (h *AdminHandler) ListReportTemplates(c *gin.Context) {
	items, err := h.Svc.ListReportTemplates(c.Request.Context())
	if err != nil {
		response.Fail(c, http.StatusInternalServerError, 50050, "list report-template failed")
		return
	}
	response.OK(c, gin.H{"items": items})
}

func (h *AdminHandler) GetReportTemplate(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.GetReportTemplate(c.Request.Context(), id)
	if errors.Is(err, admin.ErrReportTemplateNotFound) {
		response.Fail(c, http.StatusNotFound, 40420, "report-template not found")
		return
	}
	if err != nil {
		response.Fail(c, http.StatusInternalServerError, 50051, "get report-template failed")
		return
	}
	response.OK(c, row)
}

func (h *AdminHandler) CreateReportTemplate(c *gin.Context) {
	adminID, ok := middleware.AdminIDFromContext(c)
	if !ok {
		response.Fail(c, http.StatusUnauthorized, 40101, "admin auth required")
		return
	}
	var body admin.ReportTemplateWriteBody
	if err := c.ShouldBindJSON(&body); err != nil {
		response.Fail(c, http.StatusBadRequest, 40054, "invalid body")
		return
	}
	row, err := h.Svc.CreateReportTemplate(c.Request.Context(), adminID, body)
	if errors.Is(err, admin.ErrInvalidReportTemplate) {
		response.Fail(c, http.StatusBadRequest, 40055, "invalid report template")
		return
	}
	if errors.Is(err, admin.ErrReportTemplateConflict) {
		response.Fail(c, http.StatusConflict, 40912, "report template code conflict")
		return
	}
	if err != nil {
		response.Fail(c, http.StatusInternalServerError, 50052, "create report template failed")
		return
	}
	response.OK(c, row)
}

func (h *AdminHandler) UpdateReportTemplate(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.ReportTemplateWriteBody
	if err := c.ShouldBindJSON(&body); err != nil {
		response.Fail(c, http.StatusBadRequest, 40054, "invalid body")
		return
	}
	row, err := h.Svc.UpdateReportTemplate(c.Request.Context(), adminID, id, body)
	if errors.Is(err, admin.ErrReportTemplateNotFound) {
		response.Fail(c, http.StatusNotFound, 40420, "report-template not found")
		return
	}
	if errors.Is(err, admin.ErrInvalidReportTemplate) {
		response.Fail(c, http.StatusBadRequest, 40055, "invalid report template")
		return
	}
	if errors.Is(err, admin.ErrReportTemplateConflict) {
		response.Fail(c, http.StatusConflict, 40912, "report template code conflict")
		return
	}
	if err != nil {
		response.Fail(c, http.StatusInternalServerError, 50053, "update report template failed")
		return
	}
	response.OK(c, row)
}