import { router, protectedProcedure } from "../_core/trpc.ts";
import { z } from "zod";
import { TRPCError } from "@trpc/server";

export const adminSupportRouter = router({
  // Get support tickets with filtering
  getTickets: protectedProcedure
    .input(
      z.object({
        limit: z.number().default(50),
        offset: z.number().default(0),
        status: z.enum(["open", "in-progress", "resolved", "closed"]).optional(),
        priority: z.enum(["low", "medium", "high", "critical"]).optional(),
        search: z.string().optional(),
      })
    )
    .query(async ({ ctx, input }) => {
      if (ctx.user.role !== "admin") {
        throw new TRPCError({ code: "FORBIDDEN" });
      }

      // In production, query database with filters
      return {
        tickets: [],
        total: 0,
      };
    }),

  // Get ticket details with replies
  getTicketDetails: protectedProcedure
    .input(z.object({ ticketId: z.string() }))
    .query(async ({ ctx, input }) => {
      if (ctx.user.role !== "admin") {
        throw new TRPCError({ code: "FORBIDDEN" });
      }

      // In production, query database
      return {
        id: input.ticketId,
        userId: "",
        userName: "",
        userEmail: "",
        subject: "",
        message: "",
        status: "open" as const,
        priority: "medium" as const,
        createdAt: new Date(),
        updatedAt: new Date(),
        replies: [],
      };
    }),

  // Update ticket status
  updateTicketStatus: protectedProcedure
    .input(
      z.object({
        ticketId: z.string(),
        status: z.enum(["open", "in-progress", "resolved", "closed"]),
      })
    )
    .mutation(async ({ ctx, input }) => {
      if (ctx.user.role !== "admin") {
        throw new TRPCError({ code: "FORBIDDEN" });
      }

      // In production, update database
      return {
        success: true,
        message: `Ticket ${input.ticketId} status updated to ${input.status}`,
      };
    }),

  // Add reply to ticket
  addTicketReply: protectedProcedure
    .input(
      z.object({
        ticketId: z.string(),
        message: z.string().min(1),
      })
    )
    .mutation(async ({ ctx, input }) => {
      if (ctx.user.role !== "admin") {
        throw new TRPCError({ code: "FORBIDDEN" });
      }

      // In production, insert reply into database
      return {
        success: true,
        replyId: `reply-${Date.now()}`,
        message: "Reply added successfully",
      };
    }),

  // Close ticket
  closeTicket: protectedProcedure
    .input(z.object({ ticketId: z.string() }))
    .mutation(async ({ ctx, input }) => {
      if (ctx.user.role !== "admin") {
        throw new TRPCError({ code: "FORBIDDEN" });
      }

      // In production, update database
      return {
        success: true,
        message: `Ticket ${input.ticketId} closed`,
      };
    }),

  // Get support statistics
  getStats: protectedProcedure.query(async ({ ctx }) => {
    if (ctx.user.role !== "admin") {
      throw new TRPCError({ code: "FORBIDDEN" });
    }

    // In production, query database for statistics
    return {
      openTickets: 0,
      inProgressTickets: 0,
      resolvedTickets: 0,
      averageResolutionTime: 0,
      averageResponseTime: 0,
      customerSatisfaction: 0,
    };
  }),

  // Bulk assign tickets
  bulkAssignTickets: protectedProcedure
    .input(
      z.object({
        ticketIds: z.array(z.string()),
        assignedTo: z.string(),
      })
    )
    .mutation(async ({ ctx, input }) => {
      if (ctx.user.role !== "admin") {
        throw new TRPCError({ code: "FORBIDDEN" });
      }

      // In production, update database
      return {
        success: true,
        assigned: input.ticketIds.length,
        message: `${input.ticketIds.length} tickets assigned`,
      };
    }),

  // Send bulk message to users
  sendBulkMessage: protectedProcedure
    .input(
      z.object({
        userIds: z.array(z.string()),
        subject: z.string(),
        message: z.string(),
      })
    )
    .mutation(async ({ ctx, input }) => {
      if (ctx.user.role !== "admin") {
        throw new TRPCError({ code: "FORBIDDEN" });
      }

      // In production, send messages and update database
      return {
        success: true,
        sent: input.userIds.length,
        message: `Message sent to ${input.userIds.length} users`,
      };
    }),
});