package models

import (
	"fmt"
	"time"

	"odoo-go/pkg/orm"
)

// initResourceCalendar registers resource.calendar — working schedules.
// Mirrors: odoo/addons/resource/models/resource.py
func initResourceCalendar() {
	m := orm.NewModel("resource.calendar", orm.ModelOpts{
		Description: "Resource Working Time",
		Order:       "name",
	})

	m.AddFields(
		orm.Char("name", orm.FieldOpts{String: "Name", Required: true}),
		orm.Boolean("active", orm.FieldOpts{String: "Active", Default: true}),
		orm.Many2one("company_id", "res.company", orm.FieldOpts{String: "Company"}),
		orm.Float("hours_per_week", orm.FieldOpts{String: "Hours per Week"}),
		orm.Char("tz", orm.FieldOpts{String: "Timezone", Default: "Europe/Berlin"}),
		orm.Boolean("flexible_hours", orm.FieldOpts{String: "Flexible Hours"}),
		orm.One2many("attendance_ids", "resource.calendar.attendance", "calendar_id", orm.FieldOpts{String: "Attendances"}),
	)

	// resource.calendar.attendance — work time slots
	orm.NewModel("resource.calendar.attendance", orm.ModelOpts{
		Description: "Work Detail",
		Order:       "dayofweek, hour_from",
	}).AddFields(
		orm.Char("name", orm.FieldOpts{String: "Name", Required: true}),
		orm.Selection("dayofweek", []orm.SelectionItem{
			{Value: "0", Label: "Monday"}, {Value: "1", Label: "Tuesday"},
			{Value: "2", Label: "Wednesday"}, {Value: "3", Label: "Thursday"},
			{Value: "4", Label: "Friday"}, {Value: "5", Label: "Saturday"},
			{Value: "6", Label: "Sunday"},
		}, orm.FieldOpts{String: "Day of Week", Required: true}),
		orm.Float("hour_from", orm.FieldOpts{String: "Work from", Required: true}),
		orm.Float("hour_to", orm.FieldOpts{String: "Work to", Required: true}),
		orm.Many2one("calendar_id", "resource.calendar", orm.FieldOpts{
			String: "Calendar", Required: true, OnDelete: orm.OnDeleteCascade,
		}),
	)
}

// initHREmployee registers the hr.employee model.
// Mirrors: odoo/addons/hr/models/hr_employee.py
func initHREmployee() {
	m := orm.NewModel("hr.employee", orm.ModelOpts{
		Description: "Employee",
		Order:       "name",
	})

	m.AddFields(
		orm.Char("name", orm.FieldOpts{String: "Employee Name", Required: true, Index: true}),
		orm.Many2one("user_id", "res.users", orm.FieldOpts{String: "Related User"}),
		orm.Many2one("department_id", "hr.department", orm.FieldOpts{String: "Department", Index: true}),
		orm.Many2one("job_id", "hr.job", orm.FieldOpts{String: "Job Position"}),
		orm.Char("job_title", orm.FieldOpts{String: "Job Title"}),
		orm.Many2one("company_id", "res.company", orm.FieldOpts{
			String: "Company", Required: true, Index: true,
		}),
		orm.Many2one("parent_id", "hr.employee", orm.FieldOpts{String: "Manager", Index: true}),
		orm.Many2one("address_id", "res.partner", orm.FieldOpts{String: "Work Address"}),
		orm.Many2one("address_home_id", "res.partner", orm.FieldOpts{
			String: "Private Address", Groups: "hr.group_hr_user",
		}),
		orm.Char("identification_id", orm.FieldOpts{String: "Identification No", Groups: "hr.group_hr_user"}),
		orm.Char("work_email", orm.FieldOpts{String: "Work Email"}),
		orm.Char("work_phone", orm.FieldOpts{String: "Work Phone"}),
		orm.Char("mobile_phone", orm.FieldOpts{String: "Work Mobile"}),
		orm.Many2one("coach_id", "hr.employee", orm.FieldOpts{String: "Coach"}),
		orm.Boolean("active", orm.FieldOpts{String: "Active", Default: true}),
		orm.Many2one("resource_calendar_id", "resource.calendar", orm.FieldOpts{String: "Working Schedule"}),
		orm.Selection("gender", []orm.SelectionItem{
			{Value: "male", Label: "Male"},
			{Value: "female", Label: "Female"},
			{Value: "other", Label: "Other"},
		}, orm.FieldOpts{String: "Gender"}),
		orm.Date("birthday", orm.FieldOpts{String: "Date of Birth", Groups: "hr.group_hr_user"}),
		orm.Selection("marital", []orm.SelectionItem{
			{Value: "single", Label: "Single"},
			{Value: "married", Label: "Married"},
			{Value: "cohabitant", Label: "Legal Cohabitant"},
			{Value: "widower", Label: "Widower"},
			{Value: "divorced", Label: "Divorced"},
		}, orm.FieldOpts{String: "Marital Status", Default: "single"}),
		orm.Char("emergency_contact", orm.FieldOpts{String: "Emergency Contact"}),
		orm.Char("emergency_phone", orm.FieldOpts{String: "Emergency Phone"}),
		orm.Selection("certificate", []orm.SelectionItem{
			{Value: "graduate", Label: "Graduate"},
			{Value: "bachelor", Label: "Bachelor"},
			{Value: "master", Label: "Master"},
			{Value: "doctor", Label: "Doctor"},
			{Value: "other", Label: "Other"},
		}, orm.FieldOpts{String: "Certificate Level"}),
		orm.Char("study_field", orm.FieldOpts{String: "Field of Study"}),
		orm.Char("visa_no", orm.FieldOpts{String: "Visa No", Groups: "hr.group_hr_user"}),
		orm.Char("permit_no", orm.FieldOpts{String: "Work Permit No", Groups: "hr.group_hr_user"}),
		orm.Integer("km_home_work", orm.FieldOpts{String: "Home-Work Distance (km)"}),
		orm.Binary("image_1920", orm.FieldOpts{String: "Image"}),
	)

	// DefaultGet: provide dynamic defaults for new employees.
	// Mirrors: odoo/addons/hr/models/hr_employee.py HrEmployee.default_get()
	m.DefaultGet = func(env *orm.Environment, fields []string) orm.Values {
		vals := make(orm.Values)
		// Default company from current user's session
		companyID := env.CompanyID()
		if companyID > 0 {
			vals["company_id"] = companyID
		}
		return vals
	}

	// toggle_active: archive/unarchive employee
	// Mirrors: odoo/addons/hr/models/hr_employee.py HrEmployee.toggle_active()
	m.RegisterMethod("toggle_active", func(rs *orm.Recordset, args ...interface{}) (interface{}, error) {
		env := rs.Env()
		for _, id := range rs.IDs() {
			_, err := env.Tx().Exec(env.Ctx(),
				`UPDATE hr_employee SET active = NOT active WHERE id = $1`, id)
			if err != nil {
				return nil, fmt.Errorf("hr.employee: toggle_active for %d: %w", id, err)
			}
		}
		return true, nil
	})

	// action_archive: Archive employee (set active=false).
	// Mirrors: odoo/addons/hr/models/hr_employee.py HrEmployee.action_archive()
	m.RegisterMethod("action_archive", func(rs *orm.Recordset, args ...interface{}) (interface{}, error) {
		env := rs.Env()
		for _, id := range rs.IDs() {
			_, err := env.Tx().Exec(env.Ctx(),
				`UPDATE hr_employee SET active = false WHERE id = $1`, id)
			if err != nil {
				return nil, fmt.Errorf("hr.employee: action_archive for %d: %w", id, err)
			}
		}
		return true, nil
	})

	// _compute_remaining_leaves: Compute remaining leave days for the employee.
	// Mirrors: odoo/addons/hr/models/hr_employee.py HrEmployee._compute_remaining_leaves()
	m.RegisterCompute("leaves_count", func(rs *orm.Recordset) (orm.Values, error) {
		env := rs.Env()
		empID := rs.IDs()[0]

		var allocated float64
		if err := env.Tx().QueryRow(env.Ctx(),
			`SELECT COALESCE(SUM(number_of_days), 0)
			 FROM hr_leave_allocation
			 WHERE employee_id = $1 AND state = 'validate'`, empID,
		).Scan(&allocated); err != nil {
			return orm.Values{"leaves_count": float64(0)}, nil
		}

		var used float64
		if err := env.Tx().QueryRow(env.Ctx(),
			`SELECT COALESCE(SUM(number_of_days), 0)
			 FROM hr_leave
			 WHERE employee_id = $1 AND state = 'validate'`, empID,
		).Scan(&used); err != nil {
			return orm.Values{"leaves_count": float64(0)}, nil
		}

		return orm.Values{"leaves_count": allocated - used}, nil
	})

	m.RegisterCompute("attendance_state", func(rs *orm.Recordset) (orm.Values, error) {
		env := rs.Env()
		empID := rs.IDs()[0]

		var checkOut *string
		err := env.Tx().QueryRow(env.Ctx(),
			`SELECT check_out FROM hr_attendance
			 WHERE employee_id = $1
			 ORDER BY check_in DESC LIMIT 1`, empID,
		).Scan(&checkOut)

		if err != nil {
			// No attendance records or DB error → checked out
			return orm.Values{"attendance_state": "checked_out"}, nil
		}
		if checkOut == nil {
			return orm.Values{"attendance_state": "checked_in"}, nil
		}
		return orm.Values{"attendance_state": "checked_out"}, nil
	})
}

// initHrEmployeeCategory registers the hr.employee.category model.
// Mirrors: odoo/addons/hr/models/hr_employee_category.py
func initHrEmployeeCategory() {
	orm.NewModel("hr.employee.category", orm.ModelOpts{
		Description: "Employee Tag",
		Order:       "name",
	}).AddFields(
		orm.Char("name", orm.FieldOpts{String: "Name", Required: true, Translate: true}),
		orm.Integer("color", orm.FieldOpts{String: "Color Index"}),
	)
}

// initHrEmployeePublic registers the hr.employee.public model with limited fields.
// Mirrors: odoo/addons/hr/models/hr_employee.py HrEmployeePublic
func initHrEmployeePublic() {
	m := orm.NewModel("hr.employee.public", orm.ModelOpts{
		Description: "Public Employee",
		Order:       "name",
	})
	m.AddFields(
		orm.Many2one("employee_id", "hr.employee", orm.FieldOpts{
			String: "Employee", Required: true, Index: true,
		}),
		orm.Char("name", orm.FieldOpts{String: "Name", Readonly: true}),
		orm.Many2one("department_id", "hr.department", orm.FieldOpts{String: "Department", Readonly: true}),
		orm.Char("job_title", orm.FieldOpts{String: "Job Title", Readonly: true}),
		orm.Many2one("company_id", "res.company", orm.FieldOpts{String: "Company", Readonly: true}),
		orm.Many2one("parent_id", "hr.employee.public", orm.FieldOpts{String: "Manager", Readonly: true}),
		orm.Char("work_email", orm.FieldOpts{String: "Work Email", Readonly: true}),
		orm.Char("work_phone", orm.FieldOpts{String: "Work Phone", Readonly: true}),
		orm.Binary("image_1920", orm.FieldOpts{String: "Image", Readonly: true}),
	)

	// get_public_data: Reads limited public fields from hr.employee.
	// Mirrors: odoo/addons/hr/models/hr_employee.py HrEmployeePublic.read()
	m.RegisterMethod("get_public_data", func(rs *orm.Recordset, args ...interface{}) (interface{}, error) {
		env := rs.Env()

		// Accept employee_id from kwargs or use IDs
		var employeeIDs []int64
		if len(args) > 0 {
			if kw, ok := args[0].(map[string]interface{}); ok {
				if v, ok := kw["employee_ids"]; ok {
					if ids, ok := v.([]int64); ok {
						employeeIDs = ids
					}
				}
			}
		}
		if len(employeeIDs) == 0 {
			employeeIDs = rs.IDs()
		}
		if len(employeeIDs) == 0 {
			return []map[string]interface{}{}, nil
		}

		rows, err := env.Tx().Query(env.Ctx(),
			`SELECT id, COALESCE(name, ''), COALESCE(department_id, 0),
			        COALESCE(job_title, ''), COALESCE(company_id, 0),
			        COALESCE(work_email, ''), COALESCE(work_phone, '')
			 FROM hr_employee
			 WHERE id = ANY($1) AND COALESCE(active, true) = true`, employeeIDs)
		if err != nil {
			return nil, fmt.Errorf("hr.employee.public: query: %w", err)
		}
		defer rows.Close()

		var result []map[string]interface{}
		for rows.Next() {
			var id, deptID, companyID int64
			var name, jobTitle, email, phone string
			if err := rows.Scan(&id, &name, &deptID, &jobTitle, &companyID, &email, &phone); err != nil {
				continue
			}
			result = append(result, map[string]interface{}{
				"id":            id,
				"name":          name,
				"department_id": deptID,
				"job_title":     jobTitle,
				"company_id":    companyID,
				"work_email":    email,
				"work_phone":    phone,
			})
		}
		return result, nil
	})
}

// initHrEmployeeExtensions adds skill, resume, attendance and leave fields
// to hr.employee after the related models have been registered.
func initHrEmployeeExtensions() {
	emp := orm.ExtendModel("hr.employee")
	emp.AddFields(
		orm.One2many("skill_ids", "hr.employee.skill", "employee_id", orm.FieldOpts{String: "Skills"}),
		orm.One2many("resume_line_ids", "hr.resume.line", "employee_id", orm.FieldOpts{String: "Resume"}),
		orm.One2many("attendance_ids", "hr.attendance", "employee_id", orm.FieldOpts{String: "Attendances"}),
		orm.Many2one("contract_id", "hr.contract", orm.FieldOpts{String: "Current Contract"}),
		orm.One2many("contract_ids", "hr.contract", "employee_id", orm.FieldOpts{String: "Contracts"}),
		orm.Float("leaves_count", orm.FieldOpts{String: "Time Off", Compute: "_compute_leaves"}),
		orm.Selection("attendance_state", []orm.SelectionItem{
			{Value: "checked_out", Label: "Checked Out"},
			{Value: "checked_in", Label: "Checked In"},
		}, orm.FieldOpts{String: "Attendance", Compute: "_compute_attendance_state"}),
		orm.Float("seniority_years", orm.FieldOpts{
			String: "Seniority (Years)", Compute: "_compute_seniority_years",
		}),
		orm.Date("first_contract_date", orm.FieldOpts{String: "First Contract Date"}),
		orm.Many2many("category_ids", "hr.employee.category", orm.FieldOpts{String: "Tags"}),
		orm.Integer("age", orm.FieldOpts{
			String: "Age", Compute: "_compute_age",
		}),
	)

	// _compute_seniority_years: Years since first contract start date.
	// Mirrors: odoo/addons/hr_contract/models/hr_employee.py _compute_first_contract_date
	emp.RegisterCompute("seniority_years", func(rs *orm.Recordset) (orm.Values, error) {
		env := rs.Env()
		empID := rs.IDs()[0]

		// Find earliest contract start date
		var firstDate *time.Time
		if err := env.Tx().QueryRow(env.Ctx(),
			`SELECT MIN(date_start) FROM hr_contract
			 WHERE employee_id = $1 AND state NOT IN ('cancel')`, empID,
		).Scan(&firstDate); err != nil {
			return orm.Values{"seniority_years": float64(0)}, nil
		}

		if firstDate == nil {
			return orm.Values{"seniority_years": float64(0)}, nil
		}

		years := time.Since(*firstDate).Hours() / (24 * 365.25)
		if years < 0 {
			years = 0
		}
		return orm.Values{"seniority_years": years}, nil
	})

	// get_attendance_by_date_range: Return attendance summary for an employee.
	// Mirrors: odoo/addons/hr_attendance/models/hr_employee.py
	emp.RegisterMethod("get_attendance_by_date_range", func(rs *orm.Recordset, args ...interface{}) (interface{}, error) {
		env := rs.Env()
		empID := rs.IDs()[0]

		// Parse date_from / date_to from kwargs
		dateFrom := time.Now().AddDate(0, -1, 0).Format("2006-01-02")
		dateTo := time.Now().Format("2006-01-02")
		if len(args) > 0 {
			if kw, ok := args[0].(map[string]interface{}); ok {
				if v, ok := kw["date_from"].(string); ok && v != "" {
					dateFrom = v
				}
				if v, ok := kw["date_to"].(string); ok && v != "" {
					dateTo = v
				}
			}
		}

		// Daily attendance summary
		rows, err := env.Tx().Query(env.Ctx(),
			`SELECT check_in::date AS day,
			        COUNT(*) AS entries,
			        COALESCE(SUM(EXTRACT(EPOCH FROM (COALESCE(check_out, NOW()) - check_in)) / 3600.0), 0) AS total_hours
			 FROM hr_attendance
			 WHERE employee_id = $1 AND check_in::date >= $2 AND check_in::date <= $3
			 GROUP BY check_in::date
			 ORDER BY check_in::date`, empID, dateFrom, dateTo)
		if err != nil {
			return nil, fmt.Errorf("hr.employee: attendance report: %w", err)
		}
		defer rows.Close()

		var days []map[string]interface{}
		var totalHours float64
		var totalDays int
		for rows.Next() {
			var day time.Time
			var entries int
			var hours float64
			if err := rows.Scan(&day, &entries, &hours); err != nil {
				continue
			}
			days = append(days, map[string]interface{}{
				"date":    day.Format("2006-01-02"),
				"entries": entries,
				"hours":   hours,
			})
			totalHours += hours
			totalDays++
		}

		return map[string]interface{}{
			"employee_id": empID,
			"date_from":   dateFrom,
			"date_to":     dateTo,
			"days":        days,
			"total_days":  totalDays,
			"total_hours": totalHours,
			"avg_hours":   func() float64 { if totalDays > 0 { return totalHours / float64(totalDays) }; return 0 }(),
		}, nil
	})

	// _compute_age: Compute employee age from birthday.
	// Mirrors: odoo/addons/hr/models/hr_employee.py _compute_age()
	emp.RegisterCompute("age", func(rs *orm.Recordset) (orm.Values, error) {
		env := rs.Env()
		empID := rs.IDs()[0]

		var birthday *time.Time
		if err := env.Tx().QueryRow(env.Ctx(),
			`SELECT birthday FROM hr_employee WHERE id = $1`, empID,
		).Scan(&birthday); err != nil || birthday == nil {
			return orm.Values{"age": int64(0)}, nil
		}

		now := time.Now()
		age := now.Year() - birthday.Year()
		// Adjust if birthday has not occurred yet this year
		if now.Month() < birthday.Month() ||
			(now.Month() == birthday.Month() && now.Day() < birthday.Day()) {
			age--
		}
		if age < 0 {
			age = 0
		}
		return orm.Values{"age": int64(age)}, nil
	})

	// action_check_in: Create a new attendance record with check_in = now.
	// Mirrors: odoo/addons/hr_attendance/models/hr_employee.py action_check_in()
	emp.RegisterMethod("action_check_in", func(rs *orm.Recordset, args ...interface{}) (interface{}, error) {
		env := rs.Env()
		now := time.Now().UTC().Format("2006-01-02 15:04:05")

		for _, empID := range rs.IDs() {
			// Verify employee is not already checked in
			var openCount int
			env.Tx().QueryRow(env.Ctx(),
				`SELECT COUNT(*) FROM hr_attendance
				 WHERE employee_id = $1 AND check_out IS NULL`, empID,
			).Scan(&openCount)
			if openCount > 0 {
				return nil, fmt.Errorf("hr.employee: employee %d is already checked in", empID)
			}

			// Get company_id from employee
			var companyID *int64
			env.Tx().QueryRow(env.Ctx(),
				`SELECT company_id FROM hr_employee WHERE id = $1`, empID,
			).Scan(&companyID)

			// Create attendance record
			attRS := env.Model("hr.attendance")
			vals := orm.Values{
				"employee_id": empID,
				"check_in":    now,
			}
			if companyID != nil {
				vals["company_id"] = *companyID
			}
			if _, err := attRS.Create(vals); err != nil {
				return nil, fmt.Errorf("hr.employee: check_in for %d: %w", empID, err)
			}
		}
		return true, nil
	})

	// action_check_out: Set check_out on the latest open attendance record.
	// Mirrors: odoo/addons/hr_attendance/models/hr_employee.py action_check_out()
	emp.RegisterMethod("action_check_out", func(rs *orm.Recordset, args ...interface{}) (interface{}, error) {
		env := rs.Env()
		now := time.Now().UTC().Format("2006-01-02 15:04:05")

		for _, empID := range rs.IDs() {
			result, err := env.Tx().Exec(env.Ctx(),
				`UPDATE hr_attendance SET check_out = $1
				 WHERE employee_id = $2 AND check_out IS NULL`, now, empID)
			if err != nil {
				return nil, fmt.Errorf("hr.employee: check_out for %d: %w", empID, err)
			}
			if result.RowsAffected() == 0 {
				return nil, fmt.Errorf("hr.employee: employee %d is not checked in", empID)
			}
		}
		return true, nil
	})

	// get_org_chart: Return hierarchical org chart data for the employee.
	// Mirrors: odoo/addons/hr_org_chart/models/hr_employee.py get_org_chart()
	emp.RegisterMethod("get_org_chart", func(rs *orm.Recordset, args ...interface{}) (interface{}, error) {
		env := rs.Env()
		empID := rs.IDs()[0]

		// Recursive function to build the tree
		var buildNode func(id int64, depth int) (map[string]interface{}, error)
		buildNode = func(id int64, depth int) (map[string]interface{}, error) {
			// Prevent infinite recursion
			if depth > 20 {
				return nil, nil
			}

			var name, jobTitle string
			var deptID, parentID *int64
			err := env.Tx().QueryRow(env.Ctx(),
				`SELECT COALESCE(name, ''), COALESCE(job_title, ''),
				        department_id, parent_id
				 FROM hr_employee
				 WHERE id = $1 AND COALESCE(active, true) = true`, id,
			).Scan(&name, &jobTitle, &deptID, &parentID)
			if err != nil {
				return nil, nil // employee not found or inactive
			}

			node := map[string]interface{}{
				"id":        id,
				"name":      name,
				"job_title": jobTitle,
			}
			if deptID != nil {
				node["department_id"] = *deptID
			}
			if parentID != nil {
				node["parent_id"] = *parentID
			}

			// Find subordinates
			subRows, err := env.Tx().Query(env.Ctx(),
				`SELECT id FROM hr_employee
				 WHERE parent_id = $1 AND COALESCE(active, true) = true
				 ORDER BY name`, id)
			if err != nil {
				node["subordinates"] = []map[string]interface{}{}
				return node, nil
			}

			var subIDs []int64
			for subRows.Next() {
				var subID int64
				if err := subRows.Scan(&subID); err != nil {
					continue
				}
				subIDs = append(subIDs, subID)
			}
			subRows.Close()

			var subordinates []map[string]interface{}
			for _, subID := range subIDs {
				subNode, err := buildNode(subID, depth+1)
				if err != nil || subNode == nil {
					continue
				}
				subordinates = append(subordinates, subNode)
			}

			if subordinates == nil {
				subordinates = []map[string]interface{}{}
			}
			node["subordinates"] = subordinates
			node["subordinate_count"] = len(subordinates)

			return node, nil
		}

		chart, err := buildNode(empID, 0)
		if err != nil {
			return nil, fmt.Errorf("hr.employee: get_org_chart: %w", err)
		}
		if chart == nil {
			return map[string]interface{}{}, nil
		}
		return chart, nil
	})
}

// initHRDepartment registers the hr.department model.
// Mirrors: odoo/addons/hr/models/hr_department.py
func initHRDepartment() {
	m := orm.NewModel("hr.department", orm.ModelOpts{
		Description: "HR Department",
		Order:       "name",
	})

	m.AddFields(
		orm.Char("name", orm.FieldOpts{String: "Department Name", Required: true, Translate: true}),
		orm.Char("complete_name", orm.FieldOpts{
			String:  "Complete Name",
			Compute: "_compute_complete_name",
			Store:   true,
		}),
		orm.Many2one("parent_id", "hr.department", orm.FieldOpts{String: "Parent Department", Index: true}),
		orm.Many2one("manager_id", "hr.employee", orm.FieldOpts{String: "Manager"}),
		orm.Many2one("company_id", "res.company", orm.FieldOpts{
			String: "Company", Required: true, Index: true,
		}),
		orm.Boolean("active", orm.FieldOpts{String: "Active", Default: true}),
		orm.One2many("child_ids", "hr.department", "parent_id", orm.FieldOpts{String: "Child Departments"}),
		orm.One2many("member_ids", "hr.employee", "department_id", orm.FieldOpts{String: "Members"}),
	)

	m.DefaultGet = func(env *orm.Environment, fields []string) orm.Values {
		vals := make(orm.Values)
		if companyID := env.CompanyID(); companyID > 0 {
			vals["company_id"] = companyID
		}
		return vals
	}
}

// initHRJob registers the hr.job model.
// Mirrors: odoo/addons/hr/models/hr_job.py
func initHRJob() {
	m := orm.NewModel("hr.job", orm.ModelOpts{
		Description: "Job Position",
		Order:       "name",
	})

	m.AddFields(
		orm.Char("name", orm.FieldOpts{String: "Job Position", Required: true, Index: true, Translate: true}),
		orm.Many2one("department_id", "hr.department", orm.FieldOpts{String: "Department"}),
		orm.Many2one("company_id", "res.company", orm.FieldOpts{
			String: "Company", Required: true, Index: true,
		}),
		orm.Integer("expected_employees", orm.FieldOpts{String: "Expected New Employees", Default: 1}),
		orm.Integer("no_of_recruitment", orm.FieldOpts{String: "Expected in Recruitment"}),
		orm.Integer("no_of_hired_employee", orm.FieldOpts{String: "Hired Employees"}),
		orm.Selection("state", []orm.SelectionItem{
			{Value: "recruit", Label: "Recruitment in Progress"},
			{Value: "open", Label: "Not Recruiting"},
		}, orm.FieldOpts{String: "Status", Required: true, Default: "recruit"}),
		orm.Text("description", orm.FieldOpts{String: "Job Description"}),
	)

	m.DefaultGet = func(env *orm.Environment, fields []string) orm.Values {
		vals := make(orm.Values)
		if companyID := env.CompanyID(); companyID > 0 {
			vals["company_id"] = companyID
		}
		return vals
	}
}