package controllers

import (
	"encoding/json"
	"github.com/geplauder/lithium/pipelines"
	"net/http"
)

type Metadata struct {
	Name       string   `json:"name"`
	Version    string   `json:"version"`
	CommitHash string   `json:"commit_hash"`
	Pipelines  []string `json:"pipelines"`
}

const Name string = "Lithium"
const Version string = "0.1.0"

func IndexHandler(pipelines []pipelines.IPipeline, w http.ResponseWriter, r *http.Request, gitCommit string) {
	var pipelineNames []string
	for _, x := range pipelines {
		pipelineNames = append(pipelineNames, x.GetSlug())
	}

	w.Header().Set("Content-Type", "application/json")
	err := json.NewEncoder(w).Encode(Metadata{Name, Version, gitCommit, pipelineNames})
	if err != nil {
		w.WriteHeader(http.StatusInternalServerError)
	}
}