package be.vandewalleh.controllers

import be.vandewalleh.entities.Note
import be.vandewalleh.entities.Tag
import be.vandewalleh.errors.ApiError
import be.vandewalleh.tables.Notes
import be.vandewalleh.tables.Tags
import be.vandewalleh.tables.Users
import io.ktor.application.call
import io.ktor.auth.UserIdPrincipal
import io.ktor.auth.authenticate
import io.ktor.auth.principal
import io.ktor.http.HttpStatusCode
import io.ktor.locations.Location
import io.ktor.locations.post
import io.ktor.request.receive
import io.ktor.response.respond
import io.ktor.routing.Routing
import me.liuwj.ktorm.database.Database
import me.liuwj.ktorm.dsl.eq
import me.liuwj.ktorm.entity.add
import me.liuwj.ktorm.entity.find
import me.liuwj.ktorm.entity.sequenceOf
import org.kodein.di.Kodein
import org.kodein.di.generic.instance

class NoteController(kodein: Kodein) : KodeinController(kodein) {
    private val db by instance<Database>()

    override fun Routing.registerRoutes() {
        authenticate {
            post<Routes.Notes> {
                data class Response(val message: String)

                val (email) = call.principal<UserIdPrincipal>()!!
                val body = call.receive<PostNotesBody>()

                val user = db.sequenceOf(Users)
                    .find { Users.email eq email }
                    ?: return@post call.respond(HttpStatusCode.Forbidden, ApiError.DeletedUserError)

                val transaction = db.useTransaction {

                    val note = Note {
                        this.title = body.title
                        this.content = body.content
                        this.user = user
                    }

                    db.sequenceOf(Notes).add(note)

                    body.tags.forEach { tagName ->
                        val tag = Tag {
                            this.name = tagName
                            this.note = note
                        }
                        db.sequenceOf(Tags).add(tag)
                    }
                    1
                }

                return@post call.respond(Response("created"))
            }
        }

    }

    object Routes {
        @Location("/notes")
        class Notes
    }
}

data class PostNotesBody(val title: String, val content: String, val tags: List<String>)