package transport

import (
	"strconv"
	"time"

	"github.com/gin-gonic/gin"

	"github.com/geo-platform/tenant-api/internal/ops/app"
	"github.com/geo-platform/tenant-api/internal/shared/response"
)

type createAdminUserRequest struct {
	Phone    string `json:"phone" binding:"required"`
	Email    string `json:"email"`
	Name     string `json:"name"`
	Password string `json:"password" binding:"required"`
	PlanCode string `json:"plan_code"`
	Role     string `json:"role"`
}

type updateAdminUserRequest struct {
	Phone string `json:"phone" binding:"required"`
	Email string `json:"email"`
	Name  string `json:"name"`
}

type changeAdminUserPlanRequest struct {
	PlanCode string `json:"plan_code" binding:"required"`
}

type updateAdminUserSubscriptionExpiryRequest struct {
	EndAt time.Time `json:"end_at" binding:"required"`
}

type changeAdminUserRoleRequest struct {
	Role string `json:"role" binding:"required"`
}

type setAdminUserKOLRequest struct {
	Enabled       bool   `json:"enabled"`
	DisplayName   string `json:"display_name"`
	MarketEnabled bool   `json:"market_enabled"`
}

func listPlansHandler(svc *app.AdminUserService) gin.HandlerFunc {
	return func(c *gin.Context) {
		plans, err := svc.ListPlans(c.Request.Context())
		if err != nil {
			response.Error(c, err)
			return
		}
		response.Success(c, plans)
	}
}

func listRolesHandler(svc *app.AdminUserService) gin.HandlerFunc {
	return func(c *gin.Context) {
		response.Success(c, svc.ListRoles())
	}
}

func listAdminUsersHandler(svc *app.AdminUserService) gin.HandlerFunc {
	return func(c *gin.Context) {
		page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
		size, _ := strconv.Atoi(c.DefaultQuery("size", "20"))
		result, err := svc.List(c.Request.Context(), app.AdminUserListInput{
			Keyword: c.Query("keyword"),
			Status:  c.Query("status"),
			Page:    page,
			Size:    size,
		})
		if err != nil {
			response.Error(c, err)
			return
		}
		response.Success(c, result)
	}
}

func createAdminUserHandler(svc *app.AdminUserService) gin.HandlerFunc {
	return func(c *gin.Context) {
		var body createAdminUserRequest
		if err := c.ShouldBindJSON(&body); err != nil {
			response.Error(c, response.ErrBadRequest(40000, "invalid_payload", err.Error()))
			return
		}
		detail, err := svc.Create(c.Request.Context(), actorFromGin(c), app.CreateAdminUserInput{
			Phone:    body.Phone,
			Email:    body.Email,
			Name:     body.Name,
			Password: body.Password,
			PlanCode: body.PlanCode,
			Role:     body.Role,
		})
		if err != nil {
			response.Error(c, err)
			return
		}
		response.Success(c, detail)
	}
}

func getAdminUserHandler(svc *app.AdminUserService) gin.HandlerFunc {
	return func(c *gin.Context) {
		id, err := parseIDParam(c)
		if err != nil {
			response.Error(c, err)
			return
		}
		detail, err := svc.Get(c.Request.Context(), id)
		if err != nil {
			response.Error(c, err)
			return
		}
		response.Success(c, detail)
	}
}

func updateAdminUserHandler(svc *app.AdminUserService) gin.HandlerFunc {
	return func(c *gin.Context) {
		id, err := parseIDParam(c)
		if err != nil {
			response.Error(c, err)
			return
		}
		var body updateAdminUserRequest
		if err := c.ShouldBindJSON(&body); err != nil {
			response.Error(c, response.ErrBadRequest(40000, "invalid_payload", err.Error()))
			return
		}
		if err := svc.Update(c.Request.Context(), actorFromGin(c), id, app.UpdateAdminUserInput{
			Phone: body.Phone,
			Email: body.Email,
			Name:  body.Name,
		}); err != nil {
			response.Error(c, err)
			return
		}
		response.Success(c, gin.H{"id": id})
	}
}

func changeAdminUserPlanHandler(svc *app.AdminUserService) gin.HandlerFunc {
	return func(c *gin.Context) {
		id, err := parseIDParam(c)
		if err != nil {
			response.Error(c, err)
			return
		}
		var body changeAdminUserPlanRequest
		if err := c.ShouldBindJSON(&body); err != nil {
			response.Error(c, response.ErrBadRequest(40000, "invalid_payload", err.Error()))
			return
		}
		detail, err := svc.ChangePlan(c.Request.Context(), actorFromGin(c), id, body.PlanCode)
		if err != nil {
			response.Error(c, err)
			return
		}
		response.Success(c, detail)
	}
}

func updateAdminUserSubscriptionExpiryHandler(svc *app.AdminUserService) gin.HandlerFunc {
	return func(c *gin.Context) {
		id, err := parseIDParam(c)
		if err != nil {
			response.Error(c, err)
			return
		}
		var body updateAdminUserSubscriptionExpiryRequest
		if err := c.ShouldBindJSON(&body); err != nil {
			response.Error(c, response.ErrBadRequest(40000, "invalid_payload", err.Error()))
			return
		}
		detail, err := svc.UpdateSubscriptionExpiry(c.Request.Context(), actorFromGin(c), id, body.EndAt)
		if err != nil {
			response.Error(c, err)
			return
		}
		response.Success(c, detail)
	}
}

func resetAdminUserPlanUsageHandler(svc *app.AdminUserService) gin.HandlerFunc {
	return func(c *gin.Context) {
		id, err := parseIDParam(c)
		if err != nil {
			response.Error(c, err)
			return
		}
		result, err := svc.ResetCurrentPlanUsage(c.Request.Context(), actorFromGin(c), id)
		if err != nil {
			response.Error(c, err)
			return
		}
		response.Success(c, result)
	}
}

func changeAdminUserRoleHandler(svc *app.AdminUserService) gin.HandlerFunc {
	return func(c *gin.Context) {
		id, err := parseIDParam(c)
		if err != nil {
			response.Error(c, err)
			return
		}
		var body changeAdminUserRoleRequest
		if err := c.ShouldBindJSON(&body); err != nil {
			response.Error(c, response.ErrBadRequest(40000, "invalid_payload", err.Error()))
			return
		}
		detail, err := svc.ChangeRole(c.Request.Context(), actorFromGin(c), id, body.Role)
		if err != nil {
			response.Error(c, err)
			return
		}
		response.Success(c, detail)
	}
}

func setAdminUserKOLHandler(svc *app.AdminUserService) gin.HandlerFunc {
	return func(c *gin.Context) {
		id, err := parseIDParam(c)
		if err != nil {
			response.Error(c, err)
			return
		}
		var body setAdminUserKOLRequest
		if err := c.ShouldBindJSON(&body); err != nil {
			response.Error(c, response.ErrBadRequest(40000, "invalid_payload", err.Error()))
			return
		}
		detail, err := svc.SetKOL(c.Request.Context(), actorFromGin(c), id, app.SetAdminUserKOLInput{
			Enabled:       body.Enabled,
			DisplayName:   body.DisplayName,
			MarketEnabled: body.MarketEnabled,
		})
		if err != nil {
			response.Error(c, err)
			return
		}
		response.Success(c, detail)
	}
}

func setAdminUserStatusHandler(svc *app.AdminUserService) gin.HandlerFunc {
	return func(c *gin.Context) {
		id, err := parseIDParam(c)
		if err != nil {
			response.Error(c, err)
			return
		}
		var body setStatusRequest
		if err := c.ShouldBindJSON(&body); err != nil {
			response.Error(c, response.ErrBadRequest(40000, "invalid_payload", err.Error()))
			return
		}
		if err := svc.SetStatus(c.Request.Context(), actorFromGin(c), id, body.Status); err != nil {
			response.Error(c, err)
			return
		}
		response.Success(c, gin.H{"id": id, "status": body.Status})
	}
}

func resetAdminUserPasswordHandler(svc *app.AdminUserService) gin.HandlerFunc {
	return func(c *gin.Context) {
		id, err := parseIDParam(c)
		if err != nil {
			response.Error(c, err)
			return
		}
		var body resetPasswordRequest
		if err := c.ShouldBindJSON(&body); err != nil {
			response.Error(c, response.ErrBadRequest(40000, "invalid_payload", err.Error()))
			return
		}
		if err := svc.ResetPassword(c.Request.Context(), actorFromGin(c), id, body.Password); err != nil {
			response.Error(c, err)
			return
		}
		response.Success(c, gin.H{"id": id})
	}
}

func resetAdminUserLoginLockHandler(svc *app.AdminUserService) gin.HandlerFunc {
	return func(c *gin.Context) {
		id, err := parseIDParam(c)
		if err != nil {
			response.Error(c, err)
			return
		}
		result, err := svc.ResetLoginLock(c.Request.Context(), actorFromGin(c), id)
		if err != nil {
			response.Error(c, err)
			return
		}
		response.Success(c, result)
	}
}