package rest

import (
	"net/http"

	"github.com/gorilla/mux"

	"github.com/cosmos/cosmos-sdk/client/context"
	sdk "github.com/cosmos/cosmos-sdk/types"
	"github.com/cosmos/cosmos-sdk/types/rest"
	"github.com/cosmos/cosmos-sdk/x/auth/client/utils"

	"github.com/kava-labs/kava/x/liquidator/types"
)

func registerTxRoutes(cliCtx context.CLIContext, r *mux.Router) {
	r.HandleFunc("/liquidator/seize", seizeCdpHandlerFn(cliCtx)).Methods("POST")
	r.HandleFunc("/liquidator/mint", debtAuctionHandlerFn(cliCtx)).Methods("POST")
}

func seizeCdpHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		// Get args from post body
		var req types.SeizeAndStartCollateralAuctionRequest
		if !rest.ReadRESTReq(w, r, cliCtx.Codec, &req) { // This function writes a response on error
			return
		}
		req.BaseReq = req.BaseReq.Sanitize()
		if !req.BaseReq.ValidateBasic(w) { // This function writes a response on error
			return
		}

		// Create msg
		msg := types.MsgSeizeAndStartCollateralAuction{
			req.Sender,
			req.CdpOwner,
			req.CollateralDenom,
		}
		if err := msg.ValidateBasic(); err != nil {
			rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
			return
		}

		// Generate tx and write response
		utils.WriteGenerateStdTxResponse(w, cliCtx, req.BaseReq, []sdk.Msg{msg})
	}
}

func debtAuctionHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		// Get args from post body
		var req types.StartDebtAuctionRequest
		if !rest.ReadRESTReq(w, r, cliCtx.Codec, &req) {
			return
		}
		req.BaseReq = req.BaseReq.Sanitize()
		if !req.BaseReq.ValidateBasic(w) {
			return
		}

		// Create msg
		msg := types.MsgStartDebtAuction{
			req.Sender,
		}
		if err := msg.ValidateBasic(); err != nil {
			rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
			return
		}

		// Generate tx and write response
		utils.WriteGenerateStdTxResponse(w, cliCtx, req.BaseReq, []sdk.Msg{msg})
	}
}