package httpserver

import (
	"fmt"
	"net/http"
	"strconv"

	"git.janky.solutions/finn/lockserver/db"
	"git.janky.solutions/finn/lockserver/zwavejs"
	echo "github.com/labstack/echo/v4"
)

func lockHandler(c echo.Context) error {
	lockID, err := strconv.ParseInt(c.Param("lock"), 10, 32)
	if err != nil {
		return fmt.Errorf("invalid lock ID: %v", err)
	}

	ctx := c.Request().Context()

	queries, dbc, err := db.Get()
	if err != nil {
		return err
	}
	defer dbc.Close()

	lock, err := queries.GetLock(ctx, lockID)
	if err != nil {
		return err
	}

	codes, err := queries.GetAllLockCodesByLock(ctx, lockID)
	if err != nil {
		return err
	}

	return c.Render(http.StatusFound, "lock.html", map[string]interface{}{
		"lock":  lock,
		"codes": codes,
	})
}

func lockEditHandler(c echo.Context) error {
	lockID, err := strconv.ParseInt(c.Param("lock"), 10, 32)
	if err != nil {
		return fmt.Errorf("invalid lock ID: %v", err)
	}

	ctx := c.Request().Context()

	queries, dbc, err := db.Get()
	if err != nil {
		return err
	}
	defer dbc.Close()

	if c.Request().Method == http.MethodGet {
		lock, err := queries.GetLock(ctx, lockID)
		if err != nil {
			return err
		}

		// return frontend.Templates.ExecuteTemplate(c.Response(), "lock-edit.html", lock)
		return c.Render(http.StatusFound, "lock-edit.html", lock)
	}

	err = queries.UpdateLockName(ctx, db.UpdateLockNameParams{
		ID:   lockID,
		Name: c.FormValue("name"),
	})
	if err != nil {
		return err
	}

	baseURL := c.Request().Header.Get("X-Ingress-Path")
	return c.Redirect(http.StatusFound, fmt.Sprintf("%s/locks/%d", baseURL, lockID))
}

func lockCodeEditHandler(c echo.Context) error {
	lockID, err := strconv.ParseInt(c.Param("lock"), 10, 32)
	if err != nil {
		return fmt.Errorf("invalid lock ID: %v", err)
	}

	slot, err := strconv.ParseInt(c.Param("slot"), 10, 32)
	if err != nil {
		return fmt.Errorf("invalid lock ID: %v", err)
	}

	ctx := c.Request().Context()

	queries, dbc, err := db.Get()
	if err != nil {
		return err
	}
	defer dbc.Close()

	code, err := queries.GetLockCodeBySlot(ctx, db.GetLockCodeBySlotParams{
		Lock: lockID,
		Slot: slot,
	})
	if err != nil {
		return err
	}

	lock, err := queries.GetLock(ctx, lockID)
	if err != nil {
		return err
	}

	if c.Request().Method == http.MethodGet {
		return c.Render(http.StatusFound, "lock-code-edit.html", map[string]interface{}{
			"lock": lock,
			"code": code,
		})
	}

	zwaveClient := c.Get(contextKeyZWaveClient).(*zwavejs.Client)

	enabled := c.FormValue("enabled") == "on"
	enabledInt := 0
	if enabled {
		enabledInt = 1
	}
	err = zwaveClient.SetNodeValue(ctx, int(lock.ZwaveDeviceID), zwavejs.NodeValue{
		CCVersion:        1,
		CommandClassName: zwavejs.CommandClassNameUserCode,
		CommandClass:     zwavejs.CommandClassUserCode,
		Endpoint:         0,
		Property:         zwavejs.AnyType{Type: zwavejs.AnyTypeString, String: string(zwavejs.PropertyUserIDStatus)},
		PropertyName:     zwavejs.AnyType{Type: zwavejs.AnyTypeString, String: string(zwavejs.PropertyUserIDStatus)},
		PropertyKey:      zwavejs.AnyType{Type: zwavejs.AnyTypeInt, Int: int(slot)},
	}, zwavejs.AnyType{Type: zwavejs.AnyTypeInt, Int: enabledInt})
	if err != nil {
		return fmt.Errorf("error pushing enabled state to lock %s (ZWaveDeviceID=%d ID=%d): %v", lock.Name, lock.ZwaveDeviceID, lock.ID, err)
	}

	newCode := "0000"
	if enabled {
		newCode = c.FormValue("code")
		err = zwaveClient.SetNodeValue(ctx, int(lock.ZwaveDeviceID), zwavejs.NodeValue{
			CCVersion:        1,
			CommandClassName: zwavejs.CommandClassNameUserCode,
			CommandClass:     zwavejs.CommandClassUserCode,
			Endpoint:         0,
			Property:         zwavejs.AnyType{Type: zwavejs.AnyTypeString, String: string(zwavejs.PropertyUserCode)},
			PropertyName:     zwavejs.AnyType{Type: zwavejs.AnyTypeString, String: string(zwavejs.PropertyUserCode)},
			PropertyKey:      zwavejs.AnyType{Type: zwavejs.AnyTypeInt, Int: int(slot)},
		}, zwavejs.AnyType{Type: zwavejs.AnyTypeString, String: newCode})
		if err != nil {
			return fmt.Errorf("error pushing code to lock %s (ZWaveDeviceID=%d ID=%d): %v", lock.Name, lock.ZwaveDeviceID, lock.ID, err)
		}
	}

	err = queries.UpdateCodeSlot(ctx, db.UpdateCodeSlotParams{
		Lock:    lockID,
		Slot:    slot,
		Code:    newCode,
		Name:    c.FormValue("name"),
		Enabled: enabled,
	})
	if err != nil {
		return err
	}

	baseURL := c.Request().Header.Get("X-Ingress-Path")
	return c.Redirect(http.StatusFound, fmt.Sprintf("%s/locks/%d", baseURL, lockID))
}