package api

import (
	"fmt"
	"log"
	"net/http"

	"github.com/gin-gonic/gin"

	"git.nemunai.re/nemunaire/reveil/config"
	"git.nemunai.re/nemunaire/reveil/model"
)

func declareActionsRoutes(cfg *config.Config, router *gin.RouterGroup) {
	router.GET("/actions", func(c *gin.Context) {
		actions, err := reveil.LoadActions(cfg)
		if err != nil {
			c.AbortWithStatusJSON(http.StatusInternalServerError, gin.H{"errmsg": err.Error()})
			return
		}

		c.JSON(http.StatusOK, actions)
	})
	router.POST("/actions", func(c *gin.Context) {
		c.AbortWithStatusJSON(http.StatusNotImplemented, gin.H{"errmsg": "TODO"})
	})

	actionsRoutes := router.Group("/actions/:tid")
	actionsRoutes.Use(func(c *gin.Context) {
		actions, err := reveil.LoadActions(cfg)
		if err != nil {
			c.AbortWithStatusJSON(http.StatusInternalServerError, gin.H{"errmsg": err.Error()})
			return
		}

		for _, t := range actions {
			if t.Id.ToString() == c.Param("tid") {
				c.Set("action", t)
				c.Next()
				return
			}
		}

		c.AbortWithStatusJSON(http.StatusNotFound, gin.H{"errmsg": "Action not found"})
	})

	actionsRoutes.GET("", func(c *gin.Context) {
		c.JSON(http.StatusOK, c.MustGet("action"))
	})
	actionsRoutes.PUT("", func(c *gin.Context) {
		oldaction := c.MustGet("action").(*reveil.Action)

		var action reveil.Action
		if err := c.ShouldBindJSON(&action); err != nil {
			c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"errmsg": err.Error()})
			return
		}

		if action.Name != oldaction.Name {
			err := oldaction.Rename(action.Name)
			if err != nil {
				c.AbortWithStatusJSON(http.StatusInternalServerError, gin.H{"errmsg": fmt.Sprintf("Unable to rename the action: %s", err.Error())})
				return
			}
		}

		if action.Enabled != oldaction.Enabled {
			var err error
			if action.Enabled {
				err = oldaction.Enable()
			} else {
				err = oldaction.Disable()
			}

			if err != nil {
				c.AbortWithStatusJSON(http.StatusInternalServerError, gin.H{"errmsg": fmt.Sprintf("Unable to enable/disable the action: %s", err.Error())})
				return
			}
		}

		c.JSON(http.StatusOK, oldaction)
	})
	actionsRoutes.DELETE("", func(c *gin.Context) {
		action := c.MustGet("action").(*reveil.Action)

		err := action.Remove()
		if err != nil {
			c.AbortWithStatusJSON(http.StatusInternalServerError, gin.H{"errmsg": fmt.Sprintf("Unable to remove the action: %s", err.Error())})
			return
		}

		c.JSON(http.StatusOK, nil)
	})

	actionsRoutes.POST("/run", func(c *gin.Context) {
		action := c.MustGet("action").(*reveil.Action)

		settings, err := reveil.ReadSettings(cfg.SettingsFile)
		if err != nil {
			c.AbortWithStatusJSON(http.StatusInternalServerError, gin.H{"errmsg": fmt.Sprintf("Unable to run the action: unable to read settings: %s", err.Error())})
			return
		}

		cmd, err := action.Launch(settings)
		if err != nil {
			c.AbortWithStatusJSON(http.StatusInternalServerError, gin.H{"errmsg": fmt.Sprintf("Unable to run the action: %s", err.Error())})
			return
		}

		go func() {
			err := cmd.Wait()
			if err != nil {
				log.Printf("%q: %s", action.Name, err.Error())
			}
		}()

		c.JSON(http.StatusOK, true)
	})
}