package main

import (
	"fmt"
	"time"

	"zeitkort-web/repository"
)

func seedDemoData(repo repository.Repository) {
	if resetter, ok := repo.(interface{ Reset() }); ok {
		resetter.Reset()
	}

	now := time.Now()
	loc := now.Location()

	mukki, _ := repo.InsertCompany(repository.Company{
		Name:         "Mukki",
		Address:      "Snoppiesgøta 1, FO-100 Tórshavn",
		ContactEmail: "kontakt@mukki.fo",
		ContactPhone: "+298 210000",
		HourlyRate:   850,
	})

	teltlar, _ := repo.InsertCompany(repository.Company{
		Name:         "Teldlar og Teldur",
		Address:      "Teldutrøð 5, FO-100 Tórshavn",
		ContactEmail: "info@teltlar.fo",
		ContactPhone: "+298 310000",
		HourlyRate:   750,
	})

	sjogvur, _ := repo.InsertCompany(repository.Company{
		Name:         "Sjógvur.fo",
		Address:      "Vesturgøta 22, FO-100 Tórshavn",
		ContactEmail: "heiðri@sjogvur.fo",
		ContactPhone: "+298 410000",
		HourlyRate:   650,
	})

	mukkiAPI, _ := repo.InsertAssignment(repository.Assignment{
		CompanyID:   mukki.ID,
		Name:        "Microservices Backend Migration",
		Description: "Refactoring legacy monolith into Go microservices.",
		HourlyRate:  850,
		Status:      "active",
	})
	mukkiInfra, _ := repo.InsertAssignment(repository.Assignment{
		CompanyID:   mukki.ID,
		Name:        "Kubernetes Cluster Setup",
		Description: "Deploying K3s cluster.",
		HourlyRate:  850,
		Status:      "active",
	})

	teltlarERP, _ := repo.InsertAssignment(repository.Assignment{
		CompanyID:   teltlar.ID,
		Name:        "ERP Integration Module",
		Description: "REST API bridge between SQL Server and frontend.",
		HourlyRate:  750,
		Status:      "active",
	})

	sjogvurWeb, _ := repo.InsertAssignment(repository.Assignment{
		CompanyID:   sjogvur.ID,
		Name:        "Corporate Website Redesign",
		Description: "Modernizing frontend with Tailwind and static generation.",
		HourlyRate:  650,
		Status:      "active",
	})

	tMukkiAPI, _ := repo.InsertTask(repository.Task{AssignmentID: mukkiAPI.ID, Name: "Design gRPC Protobufs"})
	tMukkiAPI2, _ := repo.InsertTask(repository.Task{AssignmentID: mukkiAPI.ID, Name: "Implement Auth Middleware"})
	tMukkiInfra, _ := repo.InsertTask(repository.Task{AssignmentID: mukkiInfra.ID, Name: "Ansible Playbooks"})

	tTeltlar, _ := repo.InsertTask(repository.Task{AssignmentID: teltlarERP.ID, Name: "SQL Stored Procedures"})
	tTeltlar2, _ := repo.InsertTask(repository.Task{AssignmentID: teltlarERP.ID, Name: "API Endpoints"})

	tSjogvur, _ := repo.InsertTask(repository.Task{AssignmentID: sjogvurWeb.ID, Name: "Design System"})
	tSjogvur2, _ := repo.InsertTask(repository.Task{AssignmentID: sjogvurWeb.ID, Name: "SEO Optimization"})

	addSession := func(assignID, taskID int64, daysAgo int, hours float64) {
		start := time.Date(now.Year(), now.Month(), now.Day()-daysAgo, 9, 0, 0, 0, loc)
		end := start.Add(time.Duration(hours * float64(time.Hour)))

		task, _ := repo.GetTaskByID(taskID)
		desc := fmt.Sprintf("%d - %s", task.Number, task.Name)

		repo.InsertManualWorkSession(repository.WorkSession{
			AssignmentID:    assignID,
			TaskID:          taskID,
			TaskDescription: desc,
			StartTime:       start,
			EndTime:         &end,
		})
	}

	addSession(mukkiAPI.ID, tMukkiAPI.ID, 5, 4.5)
	addSession(mukkiAPI.ID, tMukkiAPI2.ID, 3, 2.0)
	addSession(mukkiInfra.ID, tMukkiInfra.ID, 1, 6.0)

	addSession(teltlarERP.ID, tTeltlar.ID, 4, 3.5)
	addSession(teltlarERP.ID, tTeltlar2.ID, 2, 5.0)

	addSession(sjogvurWeb.ID, tSjogvur.ID, 6, 2.5)
	addSession(sjogvurWeb.ID, tSjogvur2.ID, 0, 1.5)

	runningStart := now.Add(-45 * time.Minute)
	task, _ := repo.GetTaskByID(tSjogvur2.ID)
	desc := fmt.Sprintf("%d - %s", task.Number, task.Name)

	runningSession, _ := repo.InsertWorkSession(repository.WorkSession{
		AssignmentID:    sjogvurWeb.ID,
		TaskID:          tSjogvur2.ID,
		TaskDescription: desc,
		StartTime:       runningStart,
		EndTime:         nil,
	})

	if runningSession != nil {
		updated := repository.WorkSession{
			ID:              runningSession.ID,
			AssignmentID:    runningSession.AssignmentID,
			TaskID:          runningSession.TaskID,
			TaskDescription: desc,
			StartTime:       runningSession.StartTime,
			EndTime:         runningSession.EndTime,
			DurationMinutes: runningSession.DurationMinutes,
		}
		repo.UpdateWorkSession(runningSession.ID, updated)
	}
}