package main

import (
	"os"

	"github.com/joho/godotenv"
	_ "github.com/joho/godotenv/autoload"
	"github.com/urfave/cli"
)

// Version set at compile-time
var Version string

func main() {
	app := cli.NewApp()
	app.Name = "Drone Discord"
	app.Usage = "Sending message to Discord channel using Webhook"
	app.Copyright = "Copyright (c) 2017 Bo-Yi Wu"
	app.Authors = []cli.Author{
		{
			Name:  "Bo-Yi Wu",
			Email: "appleboy.tw@gmail.com",
		},
	}
	app.Action = run
	app.Version = Version
	app.Flags = []cli.Flag{
		cli.StringFlag{
			Name:   "webhook-id",
			Usage:  "discord webhook id",
			EnvVar: "PLUGIN_WEBHOOK_ID,WEBHOOK_ID",
		},
		cli.StringFlag{
			Name:   "webhook-token",
			Usage:  "discord webhook token",
			EnvVar: "PLUGIN_WEBHOOK_TOKEN,WEBHOOK_TOKEN",
		},
		cli.StringSliceFlag{
			Name:   "message",
			Usage:  "the message contents (up to 2000 characters)",
			EnvVar: "PLUGIN_MESSAGE,MESSAGE",
		},
		cli.StringFlag{
			Name:   "color",
			Usage:  "color code of the embed",
			EnvVar: "PLUGIN_COLOR,COLOR",
		},
		cli.BoolFlag{
			Name:   "wait",
			Usage:  "waits for server confirmation of message send before response, and returns the created message body",
			EnvVar: "PLUGIN_WAIT,WAIT",
		},
		cli.BoolFlag{
			Name:   "tts",
			Usage:  "true if this is a TTS message",
			EnvVar: "PLUGIN_TTS,TTS",
		},
		cli.StringFlag{
			Name:   "username",
			Usage:  "override the default username of the webhook",
			EnvVar: "PLUGIN_USERNAME,USERNAME",
		},
		cli.StringFlag{
			Name:   "avatar-url",
			Usage:  "override the default avatar of the webhook",
			EnvVar: "PLUGIN_AVATAR_URL,AVATAR_URL",
		},
		cli.StringFlag{
			Name:   "repo.owner",
			Usage:  "repository owner",
			EnvVar: "DRONE_REPO_OWNER",
		},
		cli.StringFlag{
			Name:   "repo.name",
			Usage:  "repository name",
			EnvVar: "DRONE_REPO_NAME",
		},
		cli.StringFlag{
			Name:   "commit.sha",
			Usage:  "git commit sha",
			EnvVar: "DRONE_COMMIT_SHA",
		},
		cli.StringFlag{
			Name:   "commit.branch",
			Value:  "master",
			Usage:  "git commit branch",
			EnvVar: "DRONE_COMMIT_BRANCH",
		},
		cli.StringFlag{
			Name:   "commit.author",
			Usage:  "git author name",
			EnvVar: "DRONE_COMMIT_AUTHOR",
		},
		cli.StringFlag{
			Name:   "commit.author.email",
			Usage:  "git author email",
			EnvVar: "DRONE_COMMIT_AUTHOR_EMAIL",
		},
		cli.StringFlag{
			Name:   "commit.author.avatar",
			Usage:  "git author avatar",
			EnvVar: "DRONE_COMMIT_AUTHOR_AVATAR",
		},
		cli.StringFlag{
			Name:   "commit.message",
			Usage:  "commit message",
			EnvVar: "DRONE_COMMIT_MESSAGE",
		},
		cli.StringFlag{
			Name:   "build.event",
			Value:  "push",
			Usage:  "build event",
			EnvVar: "DRONE_BUILD_EVENT",
		},
		cli.IntFlag{
			Name:   "build.number",
			Usage:  "build number",
			EnvVar: "DRONE_BUILD_NUMBER",
		},
		cli.StringFlag{
			Name:   "build.status",
			Usage:  "build status",
			Value:  "success",
			EnvVar: "DRONE_BUILD_STATUS",
		},
		cli.StringFlag{
			Name:   "build.link",
			Usage:  "build link",
			EnvVar: "DRONE_BUILD_LINK",
		},
		cli.StringFlag{
			Name:   "build.tag",
			Usage:  "build tag",
			EnvVar: "DRONE_TAG",
		},
		cli.Float64Flag{
			Name:   "job.started",
			Usage:  "job started",
			EnvVar: "DRONE_JOB_STARTED",
		},
		cli.Float64Flag{
			Name:   "job.finished",
			Usage:  "job finished",
			EnvVar: "DRONE_JOB_FINISHED",
		},
		cli.StringFlag{
			Name:  "env-file",
			Usage: "source env file",
		},
	}

	app.Run(os.Args)
}

func run(c *cli.Context) error {
	if c.String("env-file") != "" {
		_ = godotenv.Load(c.String("env-file"))
	}

	plugin := Plugin{
		Repo: Repo{
			Owner: c.String("repo.owner"),
			Name:  c.String("repo.name"),
		},
		Build: Build{
			Tag:      c.String("build.tag"),
			Number:   c.Int("build.number"),
			Event:    c.String("build.event"),
			Status:   c.String("build.status"),
			Commit:   c.String("commit.sha"),
			Branch:   c.String("commit.branch"),
			Author:   c.String("commit.author"),
			Email:    c.String("commit.author.email"),
			Avatar:   c.String("commit.author.avatar"),
			Message:  c.String("commit.message"),
			Link:     c.String("build.link"),
			Started:  c.Float64("job.started"),
			Finished: c.Float64("job.finished"),
		},
		Config: Config{
			WebhookID:    c.String("webhook-id"),
			WebhookToken: c.String("webhook-token"),
			Message:      c.StringSlice("message"),
			Color:        c.String("color"),
		},
		Payload: Payload{
			Wait:      c.Bool("wait"),
			Username:  c.String("username"),
			AvatarURL: c.String("avatar-url"),
			TTS:       c.Bool("tts"),
		},
	}

	return plugin.Exec()
}