package api

import (
	"database/sql"
	"net/http"

	"atlas9.dev/c/core/dbi"
	"atlas9.dev/c/core/iam"
	"atlas9.dev/c/demo/lib"
)

type GroupsImpl struct {
	DB     *sql.DB
	Guard  lib.Guard
	Groups dbi.Factory[iam.GroupStore]
}

func (s *GroupsImpl) Save(w http.ResponseWriter, r *http.Request) {

	// Read and validate the request body
	var req Groups_SaveReq
	if read(w, r, &req) {
		return
	}

	// Write to the database
	ctx := r.Context()
	err := dbi.ReadWrite(ctx, s.DB, func(tx dbi.DBI) error {
		return s.Groups(tx).Save(ctx, &req.Group)
	})

	write(ctx, w, err, nil)
}

func (s *GroupsImpl) Get(w http.ResponseWriter, r *http.Request) {

	// Read and validate the request body
	var req Groups_GetReq
	if read(w, r, &req) {
		return
	}

	// Get group from database
	ctx := r.Context()
	var group iam.Group
	err := dbi.ReadOnly(ctx, s.DB, func(tx dbi.DBI) error {
		return s.Groups(tx).Get(ctx, req.Tenant, req.Path, &group)
	})

	write(ctx, w, err, group)
}

func (s *GroupsImpl) Delete(w http.ResponseWriter, r *http.Request) {

	// Read and validate the request body
	var req Groups_DeleteReq
	if read(w, r, &req) {
		return
	}

	// Delete the record from the database
	ctx := r.Context()
	err := dbi.ReadWrite(ctx, s.DB, func(tx dbi.DBI) error {
		return s.Groups(tx).Delete(ctx, req.Tenant, req.Path)
	})

	write(ctx, w, err, nil)
}

func (s *GroupsImpl) List(w http.ResponseWriter, r *http.Request) {

	// Read and validate the request body
	var req Groups_ListReq
	if read(w, r, &req) {
		return
	}

	// Load the data from the database
	ctx := r.Context()
	var res Groups_ListRes
	err := dbi.ReadOnly(ctx, s.DB, func(tx dbi.DBI) error {
		return s.Groups(tx).List(ctx, req.Tenant, req.Page, &res.Page)
	})

	write(ctx, w, err, res)
}

func (s *GroupsImpl) ListByTenant(w http.ResponseWriter, r *http.Request) {

	// Read and validate the request body
	var req Groups_ListByTenantReq
	if read(w, r, &req) {
		return
	}

	// Load the data from the database
	ctx := r.Context()
	var res Groups_ListRes
	err := dbi.ReadOnly(ctx, s.DB, func(tx dbi.DBI) error {
		return s.Groups(tx).List(ctx, req.Tenant, req.Page, &res.Page)
	})

	write(ctx, w, err, res)
}

func (s *GroupsImpl) AddMember(w http.ResponseWriter, r *http.Request) {

	// Read and validate the request body
	var req Groups_AddMemberReq
	if read(w, r, &req) {
		return
	}

	// Write to the database
	ctx := r.Context()
	err := dbi.ReadWrite(ctx, s.DB, func(tx dbi.DBI) error {
		return s.Groups(tx).AddMember(ctx, req.Tenant, req.Group, req.UserID)
	})

	write(ctx, w, err, nil)
}

func (s *GroupsImpl) RemoveMember(w http.ResponseWriter, r *http.Request) {

	// Read and validate the request body
	var req Groups_RemoveMemberReq
	if read(w, r, &req) {
		return
	}

	// Write to the database
	ctx := r.Context()
	err := dbi.ReadWrite(ctx, s.DB, func(tx dbi.DBI) error {
		return s.Groups(tx).RemoveMember(ctx, req.Tenant, req.Group, req.UserID)
	})

	write(ctx, w, err, nil)
}

func (s *GroupsImpl) ListMembers(w http.ResponseWriter, r *http.Request) {

	// Read and validate the request body
	var req Groups_ListMembersReq
	if read(w, r, &req) {
		return
	}

	// Load the data from the database
	ctx := r.Context()
	var res Groups_ListMembersRes
	err := dbi.ReadOnly(ctx, s.DB, func(tx dbi.DBI) error {
		return s.Groups(tx).ListMembers(ctx, req.Tenant, req.Group, req.Page, &res.Page)
	})

	write(ctx, w, err, res)
}

func (s *GroupsImpl) ListMemberGroups(w http.ResponseWriter, r *http.Request) {

	// Read and validate the request body
	var req Groups_ListMemberGroupsReq
	if read(w, r, &req) {
		return
	}

	// Load the data from the database
	ctx := r.Context()
	var res Groups_ListMemberGroupsRes
	err := dbi.ReadOnly(ctx, s.DB, func(tx dbi.DBI) error {
		return s.Groups(tx).ListMemberGroups(ctx, req.UserID, req.Page, &res.Page)
	})

	write(ctx, w, err, res)
}